Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners...
Transcript of Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners...
![Page 1: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/1.jpg)
Welcometo theCLU-IN Internet Seminar
ERTP Presents13 Soil Sampling and Analysis for Volale Organic Compounds (VOCs)13 Sponsored by EPA Office of Superfund Remediagton and Technology Innovagton
(OSRTI) 13 Delivered Thursday September 21 2017 1 PM EDT (1700 GMT)13
Instructors13 bull Eric WaO Geologist Tetra Tech ericwaOtetratechcom13
Moderator 13 bull Jean Balent Environmental Scienst USEPA Office of Superfund Remediaon and Technology Innovaon13 balentjeanepagov 13
Visit the Clean Up Informa3on Network online at wwwcluinorg
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 113
DISCLAIMER
NoceThispresentaonhasbeenprovidedaspartof aUS Environmental Protecon Agency webinar The document does not
constute EPA policy Menon of trade names or commercial products does not constute endorsement or recommendaon for use Links to non-EPA web sites do not imply any official EPA endorsement of or a responsibility fortheopinions ideas data orproducts presented at those locaonsor guarantee the validityof the informaonprovided Links to non-EPA servers are provided solely as a pointer to informaon
that might be useful to EPA staff and the public
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 213
ERTP Presentshellip Webinars
bull The Environmental Response Training Program (ERTP) will sponsor ldquoERTP Presentshelliprdquo on EPArsquos Contaminated Site Clean-Up Informaon (CLU-IN) website (wwwclu-inorg) 13
bull Various topics relevant to EPA staff and other federal and state partners will be presented in webinar sessions
bull Visit hOpclu-inorglive for up to date informaon and to register13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 313
Soil Sampling and Analysis for VolaleOrganicCompounds(VOCs)
bull Whyndash Precise characterizaon of volale organic compounds (VOCs) in soil is oeen crical since decisions for remediaon are based on analycal measurement 13
ndash Unfortunately the acts of collecng and storing soil can subject soils to numerous variables that can alter VOC concentraons 13 bull Volalizaon 13
bull Biodegradaon 13
bull Other loss of VOCs in the sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 413
13
TodayrsquosWebinarTopics
bull The collecon of high-quality soil samples for VOCs13 bull Best pracces for sampling techniques to minimize the loss of VOCs13
bull The advantages and disadvantages of soil sampling devices such as Encore and TerraCore samplers13
13
EPA ERT SOP 2012 ldquoSoil Samplingrdquo13
13 September 21 2017 131313 Soil Sampling and Analysis for VOCs13 513
Good Soil VOCData Beginswith Good SamplingPracces
bull As with all environmental samples the laboratory data are only as good as the samples collected in the field13
bull When it comes to sampling soils for VOCs everything we do from the me the soil cores are retrieved to the preparaon of the sample for shipment can affect VOC recovery and sample quality13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 613
Good Soil VOCData Beginswith Good SamplingPracces (continued)
bull Soil samples for VOCs can show significant losses within seconds to minutes of opening soil cores13
bull Handling cores and sample preparaon methods can contribute to addional losses13
bull Using a sampling method that does not maintain VOCs during sample collecon shipment and during the hold before analysis adds to the problem13
bull Do not collect composite or ISM samples for VOCs13 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 713
Handlingof SamplesWhen aSoilCore Liner isOpened
Managing sampling from a soil core can be a complex situaon - stability of VOCs in the core depends on factors such as 13
1 Whether the soil is consolidated (eg clay ll) or unconsolidated (eg sand gravel)13
2 Time that the core is open or exposed before sampling (off-gassing)13 3 Moisture content of the soil13
4 Disturbance of integrity of the core13 5 Ambient temperature13
6 Heat generated by the soil coring method (eg sonic drilling)13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 813
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 2: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/2.jpg)
DISCLAIMER
NoceThispresentaonhasbeenprovidedaspartof aUS Environmental Protecon Agency webinar The document does not
constute EPA policy Menon of trade names or commercial products does not constute endorsement or recommendaon for use Links to non-EPA web sites do not imply any official EPA endorsement of or a responsibility fortheopinions ideas data orproducts presented at those locaonsor guarantee the validityof the informaonprovided Links to non-EPA servers are provided solely as a pointer to informaon
that might be useful to EPA staff and the public
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 213
ERTP Presentshellip Webinars
bull The Environmental Response Training Program (ERTP) will sponsor ldquoERTP Presentshelliprdquo on EPArsquos Contaminated Site Clean-Up Informaon (CLU-IN) website (wwwclu-inorg) 13
bull Various topics relevant to EPA staff and other federal and state partners will be presented in webinar sessions
bull Visit hOpclu-inorglive for up to date informaon and to register13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 313
Soil Sampling and Analysis for VolaleOrganicCompounds(VOCs)
bull Whyndash Precise characterizaon of volale organic compounds (VOCs) in soil is oeen crical since decisions for remediaon are based on analycal measurement 13
ndash Unfortunately the acts of collecng and storing soil can subject soils to numerous variables that can alter VOC concentraons 13 bull Volalizaon 13
bull Biodegradaon 13
bull Other loss of VOCs in the sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 413
13
TodayrsquosWebinarTopics
bull The collecon of high-quality soil samples for VOCs13 bull Best pracces for sampling techniques to minimize the loss of VOCs13
bull The advantages and disadvantages of soil sampling devices such as Encore and TerraCore samplers13
13
EPA ERT SOP 2012 ldquoSoil Samplingrdquo13
13 September 21 2017 131313 Soil Sampling and Analysis for VOCs13 513
Good Soil VOCData Beginswith Good SamplingPracces
bull As with all environmental samples the laboratory data are only as good as the samples collected in the field13
bull When it comes to sampling soils for VOCs everything we do from the me the soil cores are retrieved to the preparaon of the sample for shipment can affect VOC recovery and sample quality13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 613
Good Soil VOCData Beginswith Good SamplingPracces (continued)
bull Soil samples for VOCs can show significant losses within seconds to minutes of opening soil cores13
bull Handling cores and sample preparaon methods can contribute to addional losses13
bull Using a sampling method that does not maintain VOCs during sample collecon shipment and during the hold before analysis adds to the problem13
bull Do not collect composite or ISM samples for VOCs13 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 713
Handlingof SamplesWhen aSoilCore Liner isOpened
Managing sampling from a soil core can be a complex situaon - stability of VOCs in the core depends on factors such as 13
1 Whether the soil is consolidated (eg clay ll) or unconsolidated (eg sand gravel)13
2 Time that the core is open or exposed before sampling (off-gassing)13 3 Moisture content of the soil13
4 Disturbance of integrity of the core13 5 Ambient temperature13
6 Heat generated by the soil coring method (eg sonic drilling)13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 813
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 3: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/3.jpg)
ERTP Presentshellip Webinars
bull The Environmental Response Training Program (ERTP) will sponsor ldquoERTP Presentshelliprdquo on EPArsquos Contaminated Site Clean-Up Informaon (CLU-IN) website (wwwclu-inorg) 13
bull Various topics relevant to EPA staff and other federal and state partners will be presented in webinar sessions
bull Visit hOpclu-inorglive for up to date informaon and to register13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 313
Soil Sampling and Analysis for VolaleOrganicCompounds(VOCs)
bull Whyndash Precise characterizaon of volale organic compounds (VOCs) in soil is oeen crical since decisions for remediaon are based on analycal measurement 13
ndash Unfortunately the acts of collecng and storing soil can subject soils to numerous variables that can alter VOC concentraons 13 bull Volalizaon 13
bull Biodegradaon 13
bull Other loss of VOCs in the sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 413
13
TodayrsquosWebinarTopics
bull The collecon of high-quality soil samples for VOCs13 bull Best pracces for sampling techniques to minimize the loss of VOCs13
bull The advantages and disadvantages of soil sampling devices such as Encore and TerraCore samplers13
13
EPA ERT SOP 2012 ldquoSoil Samplingrdquo13
13 September 21 2017 131313 Soil Sampling and Analysis for VOCs13 513
Good Soil VOCData Beginswith Good SamplingPracces
bull As with all environmental samples the laboratory data are only as good as the samples collected in the field13
bull When it comes to sampling soils for VOCs everything we do from the me the soil cores are retrieved to the preparaon of the sample for shipment can affect VOC recovery and sample quality13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 613
Good Soil VOCData Beginswith Good SamplingPracces (continued)
bull Soil samples for VOCs can show significant losses within seconds to minutes of opening soil cores13
bull Handling cores and sample preparaon methods can contribute to addional losses13
bull Using a sampling method that does not maintain VOCs during sample collecon shipment and during the hold before analysis adds to the problem13
bull Do not collect composite or ISM samples for VOCs13 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 713
Handlingof SamplesWhen aSoilCore Liner isOpened
Managing sampling from a soil core can be a complex situaon - stability of VOCs in the core depends on factors such as 13
1 Whether the soil is consolidated (eg clay ll) or unconsolidated (eg sand gravel)13
2 Time that the core is open or exposed before sampling (off-gassing)13 3 Moisture content of the soil13
4 Disturbance of integrity of the core13 5 Ambient temperature13
6 Heat generated by the soil coring method (eg sonic drilling)13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 813
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 4: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/4.jpg)
Soil Sampling and Analysis for VolaleOrganicCompounds(VOCs)
bull Whyndash Precise characterizaon of volale organic compounds (VOCs) in soil is oeen crical since decisions for remediaon are based on analycal measurement 13
ndash Unfortunately the acts of collecng and storing soil can subject soils to numerous variables that can alter VOC concentraons 13 bull Volalizaon 13
bull Biodegradaon 13
bull Other loss of VOCs in the sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 413
13
TodayrsquosWebinarTopics
bull The collecon of high-quality soil samples for VOCs13 bull Best pracces for sampling techniques to minimize the loss of VOCs13
bull The advantages and disadvantages of soil sampling devices such as Encore and TerraCore samplers13
13
EPA ERT SOP 2012 ldquoSoil Samplingrdquo13
13 September 21 2017 131313 Soil Sampling and Analysis for VOCs13 513
Good Soil VOCData Beginswith Good SamplingPracces
bull As with all environmental samples the laboratory data are only as good as the samples collected in the field13
bull When it comes to sampling soils for VOCs everything we do from the me the soil cores are retrieved to the preparaon of the sample for shipment can affect VOC recovery and sample quality13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 613
Good Soil VOCData Beginswith Good SamplingPracces (continued)
bull Soil samples for VOCs can show significant losses within seconds to minutes of opening soil cores13
bull Handling cores and sample preparaon methods can contribute to addional losses13
bull Using a sampling method that does not maintain VOCs during sample collecon shipment and during the hold before analysis adds to the problem13
bull Do not collect composite or ISM samples for VOCs13 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 713
Handlingof SamplesWhen aSoilCore Liner isOpened
Managing sampling from a soil core can be a complex situaon - stability of VOCs in the core depends on factors such as 13
1 Whether the soil is consolidated (eg clay ll) or unconsolidated (eg sand gravel)13
2 Time that the core is open or exposed before sampling (off-gassing)13 3 Moisture content of the soil13
4 Disturbance of integrity of the core13 5 Ambient temperature13
6 Heat generated by the soil coring method (eg sonic drilling)13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 813
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 5: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/5.jpg)
TodayrsquosWebinarTopics
bull The collecon of high-quality soil samples for VOCs13 bull Best pracces for sampling techniques to minimize the loss of VOCs13
bull The advantages and disadvantages of soil sampling devices such as Encore and TerraCore samplers13
13
EPA ERT SOP 2012 ldquoSoil Samplingrdquo13
13 September 21 2017 131313 Soil Sampling and Analysis for VOCs13 513
Good Soil VOCData Beginswith Good SamplingPracces
bull As with all environmental samples the laboratory data are only as good as the samples collected in the field13
bull When it comes to sampling soils for VOCs everything we do from the me the soil cores are retrieved to the preparaon of the sample for shipment can affect VOC recovery and sample quality13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 613
Good Soil VOCData Beginswith Good SamplingPracces (continued)
bull Soil samples for VOCs can show significant losses within seconds to minutes of opening soil cores13
bull Handling cores and sample preparaon methods can contribute to addional losses13
bull Using a sampling method that does not maintain VOCs during sample collecon shipment and during the hold before analysis adds to the problem13
bull Do not collect composite or ISM samples for VOCs13 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 713
Handlingof SamplesWhen aSoilCore Liner isOpened
Managing sampling from a soil core can be a complex situaon - stability of VOCs in the core depends on factors such as 13
1 Whether the soil is consolidated (eg clay ll) or unconsolidated (eg sand gravel)13
2 Time that the core is open or exposed before sampling (off-gassing)13 3 Moisture content of the soil13
4 Disturbance of integrity of the core13 5 Ambient temperature13
6 Heat generated by the soil coring method (eg sonic drilling)13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 813
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 6: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/6.jpg)
Good Soil VOCData Beginswith Good SamplingPracces
bull As with all environmental samples the laboratory data are only as good as the samples collected in the field13
bull When it comes to sampling soils for VOCs everything we do from the me the soil cores are retrieved to the preparaon of the sample for shipment can affect VOC recovery and sample quality13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 613
Good Soil VOCData Beginswith Good SamplingPracces (continued)
bull Soil samples for VOCs can show significant losses within seconds to minutes of opening soil cores13
bull Handling cores and sample preparaon methods can contribute to addional losses13
bull Using a sampling method that does not maintain VOCs during sample collecon shipment and during the hold before analysis adds to the problem13
bull Do not collect composite or ISM samples for VOCs13 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 713
Handlingof SamplesWhen aSoilCore Liner isOpened
Managing sampling from a soil core can be a complex situaon - stability of VOCs in the core depends on factors such as 13
1 Whether the soil is consolidated (eg clay ll) or unconsolidated (eg sand gravel)13
2 Time that the core is open or exposed before sampling (off-gassing)13 3 Moisture content of the soil13
4 Disturbance of integrity of the core13 5 Ambient temperature13
6 Heat generated by the soil coring method (eg sonic drilling)13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 813
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 7: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/7.jpg)
Good Soil VOCData Beginswith Good SamplingPracces (continued)
bull Soil samples for VOCs can show significant losses within seconds to minutes of opening soil cores13
bull Handling cores and sample preparaon methods can contribute to addional losses13
bull Using a sampling method that does not maintain VOCs during sample collecon shipment and during the hold before analysis adds to the problem13
bull Do not collect composite or ISM samples for VOCs13 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 713
Handlingof SamplesWhen aSoilCore Liner isOpened
Managing sampling from a soil core can be a complex situaon - stability of VOCs in the core depends on factors such as 13
1 Whether the soil is consolidated (eg clay ll) or unconsolidated (eg sand gravel)13
2 Time that the core is open or exposed before sampling (off-gassing)13 3 Moisture content of the soil13
4 Disturbance of integrity of the core13 5 Ambient temperature13
6 Heat generated by the soil coring method (eg sonic drilling)13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 813
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 8: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/8.jpg)
Handlingof SamplesWhen aSoilCore Liner isOpened
Managing sampling from a soil core can be a complex situaon - stability of VOCs in the core depends on factors such as 13
1 Whether the soil is consolidated (eg clay ll) or unconsolidated (eg sand gravel)13
2 Time that the core is open or exposed before sampling (off-gassing)13 3 Moisture content of the soil13
4 Disturbance of integrity of the core13 5 Ambient temperature13
6 Heat generated by the soil coring method (eg sonic drilling)13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 813
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 9: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/9.jpg)
VOCLosshellip
Analyte compound list 13 bull Heavier VOCs are less likely to be lost whereas lighter VOCs will likely be lost13
13 Density of sample material13
bull More porous samples (eg sand) will be prone to loss of VOCs whereas dense sample material (eg clay) would be less prone to loss13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 913
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 10: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/10.jpg)
Best Pracces When Sampling with Acrylic Soil Core Liners
bull Cap the acrylic liner to preserve VOCs do not split unl ready to sample13
bull Split liner as soon as possible ndash every minute counts13
bull Keep liner on ice if extended mes are required13
bull Sample immediately with EnCore or field-preserved vials upon opening13
bull Screen the core and select samples for analysis USEPA SW 846 Method 3815 is the current method for screening although use is not mandatory13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1013
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 11: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/11.jpg)
Best Pracces When Sampling with Acrylic Soil Core Liners (connued)
bull Once a core barrel has been opened the collecon of samples is the first acvity performed (ie pre-empng even the logging of sub-surface core sample recovery and other soil characteriscs)13
bull Drill rig personnel should adjust their pace accordingly to allow collecon of samples13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1113
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 12: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/12.jpg)
Things to Avoid When Sampling with Acrylic Soil Core Liners
bull Leaving the liner exposed while screening13 bull Sampling from the container used for screening13
ndash Use of intermediate storage containers (eg core barrel liners plasc bags large glass jars) to hold soil for extended periods prior to sub-sampling defeats intent and should be avoided 13
bull Taking a second boring for samples aeer screening inial boring - no guarantee samples will match from different locaons13
bull Using bulk sampling rather than sealed or field-preserved sampling methods13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1213
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 13: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/13.jpg)
Avoid Using Soil Samplers Without CoreBarrel Liners
bull Soil sampling tools used without core barrel liners such as split spoon samplers make it nearly impossible to retain VOCs before samples are collected even using proper sampling methods and procedures 13
13 1313September 21 2017 131313 Soil Sampling and Analysis for VOCs
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 14: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/14.jpg)
ASTM Standards and EPA Methods for Soil VOC Sample Collecon and Analysis
bull Standards of pracce for obtaining handling and screening of soil cores13 ndash ASTM Standards D6282 and D6640 cover collecon and handling of soil cores for environmental
sampling13
bull Sample collecon preservaon transportaon and analysis13 ndash US EPA Method 5035 various state guidance documents13 ndash ASTM Standard D4547 ndash Sampling Waste amp Soils for VOCs13
ndash ASTM Standard D6418 ndash EnCore Sampling for VOCs in Soils13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1413
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 15: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/15.jpg)
Methods for Sampling Soils for VOC Analysis
bull Bulk sampling method13 bull No core liner or brass sleeve liner13
bull Sample is scooped or sliced from soil cores and packed in wide-mouth jar without preservaon13
bull Lab prepares a weighed sub-sample prior to analysis13
bull Sub-core samples (~5) collected in field and placed in pre-preserved VOA vials for analysis 13
bull EnCorereg Sampler ndash sealed chamber no field preservaon required ndash samplers are shipped to lab for analysis 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1513
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 16: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/16.jpg)
US EPA Method 5035
bull Implemented in 1997 to standardize sampling and field preservaon and avoid random error and low bias from bulk sampling13
bull Incorporates two approved methods of sample collecon and preservaon13 bull Field preservaon of soil core sub-samples using
methanol or sodium bisulfate13
bull EnCore sealed samplers with no preservaon required13
September 21 2017 131313
Encoretrade
TerraCoretrade Dry Weight Soil Sampling and Analysis for VOCs13 1613
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 17: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/17.jpg)
High Level and Low Level Methods in 5035
bull Samples are preserved in methanol for ldquohigh levelrdquo analysis13 ndash Calibraon range increases to 200 μgkg with only a 5 gram sample13
bull Samples are preserved in sodium bisulfate for ldquolow levelrdquo analysis13 ndash Method Detecon Limits down to 05 μgKg and concentraons lt 200 μgKg13
bull Field preservaon is typically done at a 11 rao (weightvolume) of soil and preservave
bull Pre-preserved vials supplied by the laboratory are weighed to allow calculaon of soil sample weight ndash careful not to add addional label13
bull Soil samples are based on volume and weigh approximately 5 10 or 25 grams based on sample type13
bull Hold me for samples is 14 days when chilled 4 oC13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1713
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 18: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/18.jpg)
Why aretheretwo preservavesused in Method 5035 samples
bull Some programs have detecon limit requirements for some analytes (eg benzene) that are lower than most labs can achieve with a 501 diluon of methanol in water13
bull On the other end of the spectrum samples with VOC concentraons above 200 μgkg canrsquot be accurately quanfied in a sodium bisulfate soluon13
bull Unless you know that all of your samples will fall above or below the 200 μgkg threshold both samples are taken in the field 13 ndash The lab will screen the samples to determine which to analyze13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1813
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 19: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/19.jpg)
Collecng Samples for Field Preservaon with Methanol
bull Using a Terra Core sampler place a 5 gram plug of soil into pre-preserved vial containing methanol13
bull 11 or greater weightvolume rao of soil to methanol13
bull Operaon must be done quickly to prevent VOC loss13
bull Tared weight of methanol vials should be verified before samples are collected13
Safety Note bull Methanol is a toxic and
flammable liquid bull It must be handled with all
required safety precautions related to toxic and flammable liquids
bull Methanol must be handled in a ventilated area
bull Use protective gloves when handling the methanol vials
bull Store methanol away from sources of ignition such as extreme heat or open flames
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 1913
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 20: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/20.jpg)
Collecng Samples for Field Preservaon with SodiumBisulfate
bull Using a Terra Core sampler place 5 gram plug of soil into pre-preserved vial containing 20 sodium bisulfate aqueous soluon13
bull Calcareous soil types should be checked for effervescence prior to sampling or vial may explode13
bull 11 or greater weightvolume soilpreservave rao13 bull Two vials are collected (plus a MeOH preserved vial)13 bull Collect an addional 3 vials for an MSMSD13
bull Tared weight of pre-preserved vials should be verified before samples are collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2013
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 21: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/21.jpg)
Advantages of Field Preservaon
bull No further preparaon of the sample is required in the laboratory prior to analysis13
bull Widely accepted by regulators13
bull VOC concentraons remain stable throughout the hold me and beyond13
bull Laboratory doesnrsquot require any special tools or procedures to process sample13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2113
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 22: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/22.jpg)
Disadvantages of Field Preservaon
bull Vial seals can leakbreak13 bull More experienced field staff required13
bull Difficult under adverse weather condions13 bull More risk of error eg spillage mixingadding labels etc13
bull Vehicle exhaust fumes can contaminate methanol13
bull Shipping restricons may apply for methanol (not typically an issue if labeled as ldquolaboratory samplesrdquo and volume is less than 500 mL) 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2213
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 23: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/23.jpg)
Disadvantages of Field Preservaon (connued)
bull Shipped samples shall conform to all US Department of Transportaon (DOT) rules of shipment found in Title 49 of the Code of Federal Regulaons (49 CFR parts 171 to 179) andor Internaonal Air Transportaon Associaon (IATA) hazardous materials shipping requirements found in the current edion of IATArsquos Dangerous Goods Regulaons13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2313
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 24: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/24.jpg)
EnCorereg Sampler ndash Alternave to Field Preservaon
bull The only commercially available sampler listed in Method 503513
bull Meets ASTM D4547 requirements for VOC retenon during permiOed hold me13
bull 5 and 25 gram sizes13
bull Designed to collect an average weight exact weight is determined in lab13
bull Zero headspace design minimal air trapped in the sample13
bull Mulple suppliers ndash QEC Forestry EnCorereg Sampler and sampling handle Suppliers En Novave 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2413
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 25: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/25.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2513
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 26: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/26.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2613
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 27: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/27.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2713
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 28: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/28.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2813
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 29: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/29.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 2913
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 30: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/30.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3013
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 31: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/31.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3113
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 32: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/32.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3213
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 33: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/33.jpg)
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3313
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 34: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/34.jpg)
Collecnga SurfaceSoil Sample
bull Expose the soil to be sampled by scraping the surface with a clean spatula or spoon Push the device into the soil unl the sample chamber is full and then extract the device13
13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3413
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 35: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/35.jpg)
Advantages of the EnCorereg Sampler bull Can be faster ndash less field me needed more sample throughput13 bull Easy to use minimal training13 bull No handling of preservave in the field13
bull No shipping restricons13 bull Sample is preserved later in controlled laboratory13 bull Seng avoids random error from field preservaon13
bull Long shelf life essenally no expiraon13 bull Ships in a proprietary VOC-proof bag13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3513
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 36: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/36.jpg)
Disadvantages oftheEnCorereg Sampler
bull Samples must be preserved at lab within 48-hour hold me stated in Method 5035 however if EnCore sampler is used for other programs13
bull ASTM D4547 describe extending hold me up to 14 days by freezing samples to -12 plusmn 5C13
bull ASTM D6418 describes extending hold me up to 14 days by freezing samples at -7 to -21C or holding for 48 hours at 4 plusmn2C followed by storage at -7 to -21C for up to five days13
bull Coordinate with lab if Saturday delivery expected13 bull Samples are reported in dry weight so a small jar of soil should be always collected
to measure soil moisture 13
bull Most agree that per-sample cost is higher than field preservaon 13 bull Some offset by me savings especially for inexperienced staff 13
bull Lab may charge a sample prep fee 13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3613
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 37: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/37.jpg)
Decisions Decisions
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3713
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813
![Page 38: Welcome to the CLU-IN Internet Seminar...Things to Avoid When Sampling withAcrylic Soil Core Liners • Leaving the liner exposed while screening • Sampling from the container used](https://reader033.fdocuments.in/reader033/viewer/2022060523/60537e09636c6b1c6b5ef043/html5/thumbnails/38.jpg)
Decisions Decisions (connued)
13 bull Sampling intervals must be decided as quickly (and safely) as possible
bull If using Terra Coresreg discuss preservaves with laboratory ahead of me13
bull If using EnCoresreg samples must be shipped to the laboratory or picked up via courier the day collected13
September 21 2017 131313 Soil Sampling and Analysis for VOCs13 3813