GZ

140 Broadway Providence Rhode Island 02903 401-421-4140 FAX 401-751-86 H

A Subsidiary of G7A GeoFnvironmental Technologies Int

GZA I ngtneen and Principals GeoEnvironmental Inc Scientists John P Hartley

District Office Manager Michael A Powers PE L S P

February 19 1997 David R Carchedi Ph D PE John J Spirito PE L SP File No 31030-C Philip P Virgadamo PE LS P

Mr Dennis aRusso Interdivisional Manager RI Resource Recovery Corporation 65 Shun Pike Johnston Rhode Island 02919

Re Central Landfill Operable Unit 2 RIFS Progress Report No 24 Work Period January 29 1997 through February 18 1997

Dear Mr aRusso

This letter with attachments serves as the 24th progress report prepared by GZA GeoEnvironmental Inc (GZA) associated with activities completed to date on the Central Landfill Operable Unit 2 Remedial InvestigationFeasibility Study (OU2-RIFS) This progress report has been prepared in accordance with the requirements of Section 37 of the Administrative Order by Consent US EPA Docket No 1-87-1016 We prepared this letter on behalf of the RIRRC in accordance with the terms and conditions of our July 1 1996 Environmental Engineering Services Contract

This progress report contains GZAs recommended well installation zones for MW97-ML10 We have tentatively scheduled the drilling contractor to mobilize to the site on March 3 1997 to commence with these installations therefore your prompt review and comment on the attached information would be appreciated We will await RIRRC EPA and RIDEM approval prior to commencing with the well installations ampbullbullbull bull ^

bull~9 bull

Please do not hesitate to call Ed at ext 3133 with any questions or comments regarding this progress report

Very truly yours

GZA GEOENVIRONMENTAL INC

Stephen M Kline Project Engineer

Edward ASummer Project Manager

EASxlz

Attachments Progress Report No 24 MW97-ML10 Well Screen Selection Summary Table Borehole Geophysical Data Logs GC Screening Data Sheets

cc Mr John CourcierUSEPA (2 copies) Ms Becky CleaverHNUS Ms Laurie SclamaRIDEM g jobsclf31030 easVprogress rptpr24-let doc

An lquil Opportunity Implner Ml AVH

PROGRESS REPORT NO 24

PROGRESS MADE THIS REPORTING PERIOD

January 291997 through February 141997

DELIVERABLES AND CORRESPONDENCE THIS PERIOD

GZA has not submitted any correspondence to EPA and RIDEM on behalf of our client the Rhode Island Resource Recovery Corporation (RIRRC) during this reporting period oz GZA has received the following correspondence from either EPA andor RIDEM regarding this project during this reporting period

bull RIDEM Review of GZA Responses to Comments on the Environmental Monitoring Plan dated February 41997

WORK ACCOMPLISHED THIS PERIOD

Multi-Media Sampling and Analytical ProgramTask 1- Round 2

GZA received the final analytical reports for the OU2-Round 2 program (VOC resampling) from Mitkem Corporation on December 11 1996 Copies of all OU2-Round 2 analytical data have now been sent to ECCI of Gorham Maine for data validation GZA received ECCIs data validation results and Site Chemist Data Usability Report on January 17 1997 We are in the process of completing summary tables for all the CLP Round 2 analytical data reflecting the final validators comments During this process we noted several errors in the Mitkem digital data deliverables which we are currently resolving in a cooperative effort with the laboratory staff

Deep Multi-level Well Installation (MW97-ML10)Task 4A

As detailed in our last progress report Colog Inc (Colog) of Golden Colorado completed a suite of borehole geophysics on MW97-ML10 Colog performed 3-armed caliper borehole temperature and acoustic borehole televiewer (ATV) logging (described in the SAP) In addition GZA had Colog perform fluid resistivity logging and heat pulse flow meter logging The borehole geophysics confirmed observations made during drilling (1) most of the bedrock fractures reside in two general zones (between the 70 and 140 and 265 to 300) (2) the borehole does not produce very much water and (3) the most hydraulically conductive fractures are at the top of the open borehole (between 70 and 120)

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 1 of 5

GZV

GZA used the preliminary borehole geophysics data to select 16 ten-foot long test zones from the 230 feet of open borehole for the packer testing program (detailed on the attached summary table) On January 29 1997 DL Maher (Maher) of North Reading Massachusetts (the drilling contractor) mobilized a Smeal Hoist Rig to the site to begin extraction packer testing and discrete zone groundwater sampling of borehole MW97-ML10 The straddle packer assembly was first assembled and tested in a 17-foot piece of 6-inch steel casing for accuracy and precision of measurements GZA decided to perform all extraction testing and groundwater sampling prior to injection testing to avoid introducing potable water to the borehole prior to sampling On January 31 1997 during the testing of Zone No 10 (165 to 175 depth interval) the pump extraction line separated from its connection where it attached to the upper packer The packer assembly could not be repaired On February 3 1997 Maher re-mobilized to the site with a new packer assembly This new packer equipment was also tested for accuracy and precision prior to further borehole testing

Due to time constraints and the results of the Heat Tag Flow Meter logging which indicated no flow in the lower portions of the borehole GZA decided to commence injection packer testing on February 3 1997 instead of completing the lower zones of extraction testing Prior to injection testing the test water was collected from the on-site potable water supply source and allowed to stand for 24-hours within Mahers storage tanks GZA then sampled and tested the water for VOCs Packer test intervals and test pressures were determined by GZA in the field GZA personnel collected and recorded all pertinent testing data Maher demobilized from the site on February 5 1997 after completing all 16 zones of injection packer testing Raw packer test data was reduced and hydraulic conductivities (K values) were calculated using a computer program called Permcalc developed by GZA based on the methods presented in the Groundwater Manual US Department of Interior Revised Reprint 1981 Permcalc determines head loss due to friction using pipe flow methods and accounted for this when determining K values As seen in the attached table the injection packer testing results showed generally good agreement with the geophysical techniques However the injection packer testing is more sensitive in evaluating low conductivity fractures than is the Heat Tag Flow Meter

GZA has evaluated the drilling observations VOC screening geophysical analysis and hydraulic conductivity testing of the 300-foot deep bedrock well (MW97-ML10) on the dam between the Upper and Lower Simmons Reservoirs Based on the data reviewed we recommend installation of two 2-inch ID PVC wells one screened from 119 to 134 feet and one screened from 280 to 300 feet below ground surface We also recommend the installation of one 1-inch ID PVC well screened from 70 to 80 feet below ground surface The recommendation for the placement of a 1-inch ID well is based on the limited space

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 2 of 5

within the 6-inch ID borehole and our previous success with an installation of this type at MW95-ML9 When carefully sampled with a peristaltic pump we believe this installation will provide representative results for both organic and inorganic analysis Well screens are to be installed as described in the SAP which includes a sand filter packs extending 1 foot above and below the screens

In making our well placement recommendations GZA evaluated each borehole testing zone (ie 10 foot long packer testing and groundwater sampling zone) For your use in reviewing these recommendations we have attached 1) geophysical logging tables and figures and 2) a table summarizing field screening results laboratory screening and hydraulic conductivity testing results

oz The data demonstrates that the most hydraulically conductive zones are concentrated

at the top of the uncased portion of the borehole (between 70 and 120) This provides further evidence that groundwater contaminant transport in OU2 is most likely to occur at relatively shallow depths The upper-most recommended well installation zone (MW97shyML10A) lies right below and will slightly span the interface between the open borehole and the 6-inch steel well casing Given the shallow groundwater table (less than 10 feet) the fractures observed by the geophysical logging and the observed hydraulic conductivities (the highest recorded in this borehole) MW97-ML10A is well suited for both shallow bedrock groundwater quality monitoring and sampling by peristaltic pump

The deeper recommended well installation zones are more problematic due to very low observed hydraulic conductivities in the borehole In order to compensate for these low hydraulic conductivities we recommend installing a 15-foot screened interval for MW97shyML10B which spans the two hydraulically conductive portions of test zones 6 and 7 (based on the Heat Tag and packer test methods respectively) This sampling interval (118 to 135 including the filter sand pack) includes the highest reported chemical concentrations and encounters several large geophysical anomalies including absolute temperature and resistivity deflections corresponding to borehole enlargements indicated by the 3-arm caliper log and distinct high angle fractures with apparent aperture detected by the ATV log

In selecting the deepest screened zone (designated MW97-ML10C) we reviewed the available data and recommend installing a 20-foot screened interval (280 to 300 which spans two fractures observed on the ATV logs and the bottom reaches of a soft drilling zone in the borehole (approximately 265 to 285) A 20-foot screened interval was chosen to compensate for the very low K values observed at this depth The geophysical data shows both a caliper enlargement and large temperature and fluid resistivity anomalies at 290 feet

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 3 of 5

below ground surface which roughly corresponds with two high-angle fractures identified by the ATV Given roughly equivalent hydraulic conductivities (ie all reported as No Flow) of fractures in the bottom 100-feet of borehole GZA feels it would be imprudent not to span the deepest possible fractures to rule out deep interbasin migration of contaminants from the OU2 Study Area

The remaining project scheduled is provided below for planning purposes GZA would appreciate expedient regulatory review and commentary on MW97-ML10s monitoring well design configuration so that we can order the well specific dedicated sampling equipment (ie Well Wizard sampling pumps - as described in the SAP) and complete the well installations in a timely fashion

oz Residential Well SurveyTask 5A

During the past reporting period we completed our review of Federal and State computerized regulatory databases in order to identify other area sites of potential concern In addition GZA personnel are continuing to review of RIDEM files for the identified sites of environmental concern which have the potential to impact soil and water quality of the OU2 Study Area

GZA has completed the Town of Johnston file reviews of the Water Board and Tax Assessors Office to identify wells within OU2 which may be actively used as supply wells We continue to summarize and evaluate this information In addition we have begun to correlate the historical RIDOH and EPA residential well sampling data (presented in the OU1-RT) with our GIS database of located wells in order to identify areas of potential site related groundwater contamination

UPCOMING EVENTSACTIVITIES

FIELD ACTIVITIES

Deep Multi-level Well Installation (MW97-ML10VTask 4A The following is a tentative project schedule provided for planning purposes

PROPOSED PROJECT SCHEDULE (MW97-ML10) TASK DATE

Monitoring Well Design Approval February 6 through February 28 (Contractor Off-Site) Well Installation Commences March 3 Well Installation Completed March 5 Groundwater Samplma Commences March 10

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 4 of 5

Please note that field activities are highly dependent on the weather and the availability of subcontractors and equipment and are thus subject to change We will notify EPA and RIDEM as such changes become evident

REPORTS CORRESPONDENCE AND MEETINGS

We will issue a summary report evaluating the 15 month Stream Flow MeasurementsTask 3 surface water hydrology project by February 28 1997 oz We intend to issue tabular summaries of the validated OU2-Round 2 analytical data with the next regular Progress Report

KEY PERSONNEL

There have been no changes to the project staff

G JOBSCLF31030 EASPROGRESS RPTPR24-RPT DOC

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 5 of 5

MW97-ML10 WELL SCREEN SELECTION SUMMARAY TABLE

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

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ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

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PROGRESS REPORT NO 24

PROGRESS MADE THIS REPORTING PERIOD

January 291997 through February 141997

DELIVERABLES AND CORRESPONDENCE THIS PERIOD

GZA has not submitted any correspondence to EPA and RIDEM on behalf of our client the Rhode Island Resource Recovery Corporation (RIRRC) during this reporting period oz GZA has received the following correspondence from either EPA andor RIDEM regarding this project during this reporting period

bull RIDEM Review of GZA Responses to Comments on the Environmental Monitoring Plan dated February 41997

WORK ACCOMPLISHED THIS PERIOD

Multi-Media Sampling and Analytical ProgramTask 1- Round 2

GZA received the final analytical reports for the OU2-Round 2 program (VOC resampling) from Mitkem Corporation on December 11 1996 Copies of all OU2-Round 2 analytical data have now been sent to ECCI of Gorham Maine for data validation GZA received ECCIs data validation results and Site Chemist Data Usability Report on January 17 1997 We are in the process of completing summary tables for all the CLP Round 2 analytical data reflecting the final validators comments During this process we noted several errors in the Mitkem digital data deliverables which we are currently resolving in a cooperative effort with the laboratory staff

Deep Multi-level Well Installation (MW97-ML10)Task 4A

As detailed in our last progress report Colog Inc (Colog) of Golden Colorado completed a suite of borehole geophysics on MW97-ML10 Colog performed 3-armed caliper borehole temperature and acoustic borehole televiewer (ATV) logging (described in the SAP) In addition GZA had Colog perform fluid resistivity logging and heat pulse flow meter logging The borehole geophysics confirmed observations made during drilling (1) most of the bedrock fractures reside in two general zones (between the 70 and 140 and 265 to 300) (2) the borehole does not produce very much water and (3) the most hydraulically conductive fractures are at the top of the open borehole (between 70 and 120)

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 1 of 5

GZV

GZA used the preliminary borehole geophysics data to select 16 ten-foot long test zones from the 230 feet of open borehole for the packer testing program (detailed on the attached summary table) On January 29 1997 DL Maher (Maher) of North Reading Massachusetts (the drilling contractor) mobilized a Smeal Hoist Rig to the site to begin extraction packer testing and discrete zone groundwater sampling of borehole MW97-ML10 The straddle packer assembly was first assembled and tested in a 17-foot piece of 6-inch steel casing for accuracy and precision of measurements GZA decided to perform all extraction testing and groundwater sampling prior to injection testing to avoid introducing potable water to the borehole prior to sampling On January 31 1997 during the testing of Zone No 10 (165 to 175 depth interval) the pump extraction line separated from its connection where it attached to the upper packer The packer assembly could not be repaired On February 3 1997 Maher re-mobilized to the site with a new packer assembly This new packer equipment was also tested for accuracy and precision prior to further borehole testing

Due to time constraints and the results of the Heat Tag Flow Meter logging which indicated no flow in the lower portions of the borehole GZA decided to commence injection packer testing on February 3 1997 instead of completing the lower zones of extraction testing Prior to injection testing the test water was collected from the on-site potable water supply source and allowed to stand for 24-hours within Mahers storage tanks GZA then sampled and tested the water for VOCs Packer test intervals and test pressures were determined by GZA in the field GZA personnel collected and recorded all pertinent testing data Maher demobilized from the site on February 5 1997 after completing all 16 zones of injection packer testing Raw packer test data was reduced and hydraulic conductivities (K values) were calculated using a computer program called Permcalc developed by GZA based on the methods presented in the Groundwater Manual US Department of Interior Revised Reprint 1981 Permcalc determines head loss due to friction using pipe flow methods and accounted for this when determining K values As seen in the attached table the injection packer testing results showed generally good agreement with the geophysical techniques However the injection packer testing is more sensitive in evaluating low conductivity fractures than is the Heat Tag Flow Meter

GZA has evaluated the drilling observations VOC screening geophysical analysis and hydraulic conductivity testing of the 300-foot deep bedrock well (MW97-ML10) on the dam between the Upper and Lower Simmons Reservoirs Based on the data reviewed we recommend installation of two 2-inch ID PVC wells one screened from 119 to 134 feet and one screened from 280 to 300 feet below ground surface We also recommend the installation of one 1-inch ID PVC well screened from 70 to 80 feet below ground surface The recommendation for the placement of a 1-inch ID well is based on the limited space

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 2 of 5

within the 6-inch ID borehole and our previous success with an installation of this type at MW95-ML9 When carefully sampled with a peristaltic pump we believe this installation will provide representative results for both organic and inorganic analysis Well screens are to be installed as described in the SAP which includes a sand filter packs extending 1 foot above and below the screens

In making our well placement recommendations GZA evaluated each borehole testing zone (ie 10 foot long packer testing and groundwater sampling zone) For your use in reviewing these recommendations we have attached 1) geophysical logging tables and figures and 2) a table summarizing field screening results laboratory screening and hydraulic conductivity testing results

oz The data demonstrates that the most hydraulically conductive zones are concentrated

at the top of the uncased portion of the borehole (between 70 and 120) This provides further evidence that groundwater contaminant transport in OU2 is most likely to occur at relatively shallow depths The upper-most recommended well installation zone (MW97shyML10A) lies right below and will slightly span the interface between the open borehole and the 6-inch steel well casing Given the shallow groundwater table (less than 10 feet) the fractures observed by the geophysical logging and the observed hydraulic conductivities (the highest recorded in this borehole) MW97-ML10A is well suited for both shallow bedrock groundwater quality monitoring and sampling by peristaltic pump

The deeper recommended well installation zones are more problematic due to very low observed hydraulic conductivities in the borehole In order to compensate for these low hydraulic conductivities we recommend installing a 15-foot screened interval for MW97shyML10B which spans the two hydraulically conductive portions of test zones 6 and 7 (based on the Heat Tag and packer test methods respectively) This sampling interval (118 to 135 including the filter sand pack) includes the highest reported chemical concentrations and encounters several large geophysical anomalies including absolute temperature and resistivity deflections corresponding to borehole enlargements indicated by the 3-arm caliper log and distinct high angle fractures with apparent aperture detected by the ATV log

In selecting the deepest screened zone (designated MW97-ML10C) we reviewed the available data and recommend installing a 20-foot screened interval (280 to 300 which spans two fractures observed on the ATV logs and the bottom reaches of a soft drilling zone in the borehole (approximately 265 to 285) A 20-foot screened interval was chosen to compensate for the very low K values observed at this depth The geophysical data shows both a caliper enlargement and large temperature and fluid resistivity anomalies at 290 feet

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 3 of 5

below ground surface which roughly corresponds with two high-angle fractures identified by the ATV Given roughly equivalent hydraulic conductivities (ie all reported as No Flow) of fractures in the bottom 100-feet of borehole GZA feels it would be imprudent not to span the deepest possible fractures to rule out deep interbasin migration of contaminants from the OU2 Study Area

The remaining project scheduled is provided below for planning purposes GZA would appreciate expedient regulatory review and commentary on MW97-ML10s monitoring well design configuration so that we can order the well specific dedicated sampling equipment (ie Well Wizard sampling pumps - as described in the SAP) and complete the well installations in a timely fashion

oz Residential Well SurveyTask 5A

During the past reporting period we completed our review of Federal and State computerized regulatory databases in order to identify other area sites of potential concern In addition GZA personnel are continuing to review of RIDEM files for the identified sites of environmental concern which have the potential to impact soil and water quality of the OU2 Study Area

GZA has completed the Town of Johnston file reviews of the Water Board and Tax Assessors Office to identify wells within OU2 which may be actively used as supply wells We continue to summarize and evaluate this information In addition we have begun to correlate the historical RIDOH and EPA residential well sampling data (presented in the OU1-RT) with our GIS database of located wells in order to identify areas of potential site related groundwater contamination

UPCOMING EVENTSACTIVITIES

FIELD ACTIVITIES

Deep Multi-level Well Installation (MW97-ML10VTask 4A The following is a tentative project schedule provided for planning purposes

PROPOSED PROJECT SCHEDULE (MW97-ML10) TASK DATE

Monitoring Well Design Approval February 6 through February 28 (Contractor Off-Site) Well Installation Commences March 3 Well Installation Completed March 5 Groundwater Samplma Commences March 10

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 4 of 5

Please note that field activities are highly dependent on the weather and the availability of subcontractors and equipment and are thus subject to change We will notify EPA and RIDEM as such changes become evident

REPORTS CORRESPONDENCE AND MEETINGS

We will issue a summary report evaluating the 15 month Stream Flow MeasurementsTask 3 surface water hydrology project by February 28 1997 oz We intend to issue tabular summaries of the validated OU2-Round 2 analytical data with the next regular Progress Report

KEY PERSONNEL

There have been no changes to the project staff

G JOBSCLF31030 EASPROGRESS RPTPR24-RPT DOC

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 5 of 5

MW97-ML10 WELL SCREEN SELECTION SUMMARAY TABLE

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

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PROGRESS MADE THIS REPORTING PERIOD

January 291997 through February 141997

DELIVERABLES AND CORRESPONDENCE THIS PERIOD

GZA has not submitted any correspondence to EPA and RIDEM on behalf of our client the Rhode Island Resource Recovery Corporation (RIRRC) during this reporting period oz GZA has received the following correspondence from either EPA andor RIDEM regarding this project during this reporting period

bull RIDEM Review of GZA Responses to Comments on the Environmental Monitoring Plan dated February 41997

WORK ACCOMPLISHED THIS PERIOD

Multi-Media Sampling and Analytical ProgramTask 1- Round 2

GZA received the final analytical reports for the OU2-Round 2 program (VOC resampling) from Mitkem Corporation on December 11 1996 Copies of all OU2-Round 2 analytical data have now been sent to ECCI of Gorham Maine for data validation GZA received ECCIs data validation results and Site Chemist Data Usability Report on January 17 1997 We are in the process of completing summary tables for all the CLP Round 2 analytical data reflecting the final validators comments During this process we noted several errors in the Mitkem digital data deliverables which we are currently resolving in a cooperative effort with the laboratory staff

Deep Multi-level Well Installation (MW97-ML10)Task 4A

As detailed in our last progress report Colog Inc (Colog) of Golden Colorado completed a suite of borehole geophysics on MW97-ML10 Colog performed 3-armed caliper borehole temperature and acoustic borehole televiewer (ATV) logging (described in the SAP) In addition GZA had Colog perform fluid resistivity logging and heat pulse flow meter logging The borehole geophysics confirmed observations made during drilling (1) most of the bedrock fractures reside in two general zones (between the 70 and 140 and 265 to 300) (2) the borehole does not produce very much water and (3) the most hydraulically conductive fractures are at the top of the open borehole (between 70 and 120)

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 1 of 5

GZV

GZA used the preliminary borehole geophysics data to select 16 ten-foot long test zones from the 230 feet of open borehole for the packer testing program (detailed on the attached summary table) On January 29 1997 DL Maher (Maher) of North Reading Massachusetts (the drilling contractor) mobilized a Smeal Hoist Rig to the site to begin extraction packer testing and discrete zone groundwater sampling of borehole MW97-ML10 The straddle packer assembly was first assembled and tested in a 17-foot piece of 6-inch steel casing for accuracy and precision of measurements GZA decided to perform all extraction testing and groundwater sampling prior to injection testing to avoid introducing potable water to the borehole prior to sampling On January 31 1997 during the testing of Zone No 10 (165 to 175 depth interval) the pump extraction line separated from its connection where it attached to the upper packer The packer assembly could not be repaired On February 3 1997 Maher re-mobilized to the site with a new packer assembly This new packer equipment was also tested for accuracy and precision prior to further borehole testing

Due to time constraints and the results of the Heat Tag Flow Meter logging which indicated no flow in the lower portions of the borehole GZA decided to commence injection packer testing on February 3 1997 instead of completing the lower zones of extraction testing Prior to injection testing the test water was collected from the on-site potable water supply source and allowed to stand for 24-hours within Mahers storage tanks GZA then sampled and tested the water for VOCs Packer test intervals and test pressures were determined by GZA in the field GZA personnel collected and recorded all pertinent testing data Maher demobilized from the site on February 5 1997 after completing all 16 zones of injection packer testing Raw packer test data was reduced and hydraulic conductivities (K values) were calculated using a computer program called Permcalc developed by GZA based on the methods presented in the Groundwater Manual US Department of Interior Revised Reprint 1981 Permcalc determines head loss due to friction using pipe flow methods and accounted for this when determining K values As seen in the attached table the injection packer testing results showed generally good agreement with the geophysical techniques However the injection packer testing is more sensitive in evaluating low conductivity fractures than is the Heat Tag Flow Meter

GZA has evaluated the drilling observations VOC screening geophysical analysis and hydraulic conductivity testing of the 300-foot deep bedrock well (MW97-ML10) on the dam between the Upper and Lower Simmons Reservoirs Based on the data reviewed we recommend installation of two 2-inch ID PVC wells one screened from 119 to 134 feet and one screened from 280 to 300 feet below ground surface We also recommend the installation of one 1-inch ID PVC well screened from 70 to 80 feet below ground surface The recommendation for the placement of a 1-inch ID well is based on the limited space

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 2 of 5

within the 6-inch ID borehole and our previous success with an installation of this type at MW95-ML9 When carefully sampled with a peristaltic pump we believe this installation will provide representative results for both organic and inorganic analysis Well screens are to be installed as described in the SAP which includes a sand filter packs extending 1 foot above and below the screens

In making our well placement recommendations GZA evaluated each borehole testing zone (ie 10 foot long packer testing and groundwater sampling zone) For your use in reviewing these recommendations we have attached 1) geophysical logging tables and figures and 2) a table summarizing field screening results laboratory screening and hydraulic conductivity testing results

oz The data demonstrates that the most hydraulically conductive zones are concentrated

at the top of the uncased portion of the borehole (between 70 and 120) This provides further evidence that groundwater contaminant transport in OU2 is most likely to occur at relatively shallow depths The upper-most recommended well installation zone (MW97shyML10A) lies right below and will slightly span the interface between the open borehole and the 6-inch steel well casing Given the shallow groundwater table (less than 10 feet) the fractures observed by the geophysical logging and the observed hydraulic conductivities (the highest recorded in this borehole) MW97-ML10A is well suited for both shallow bedrock groundwater quality monitoring and sampling by peristaltic pump

The deeper recommended well installation zones are more problematic due to very low observed hydraulic conductivities in the borehole In order to compensate for these low hydraulic conductivities we recommend installing a 15-foot screened interval for MW97shyML10B which spans the two hydraulically conductive portions of test zones 6 and 7 (based on the Heat Tag and packer test methods respectively) This sampling interval (118 to 135 including the filter sand pack) includes the highest reported chemical concentrations and encounters several large geophysical anomalies including absolute temperature and resistivity deflections corresponding to borehole enlargements indicated by the 3-arm caliper log and distinct high angle fractures with apparent aperture detected by the ATV log

In selecting the deepest screened zone (designated MW97-ML10C) we reviewed the available data and recommend installing a 20-foot screened interval (280 to 300 which spans two fractures observed on the ATV logs and the bottom reaches of a soft drilling zone in the borehole (approximately 265 to 285) A 20-foot screened interval was chosen to compensate for the very low K values observed at this depth The geophysical data shows both a caliper enlargement and large temperature and fluid resistivity anomalies at 290 feet

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 3 of 5

below ground surface which roughly corresponds with two high-angle fractures identified by the ATV Given roughly equivalent hydraulic conductivities (ie all reported as No Flow) of fractures in the bottom 100-feet of borehole GZA feels it would be imprudent not to span the deepest possible fractures to rule out deep interbasin migration of contaminants from the OU2 Study Area

The remaining project scheduled is provided below for planning purposes GZA would appreciate expedient regulatory review and commentary on MW97-ML10s monitoring well design configuration so that we can order the well specific dedicated sampling equipment (ie Well Wizard sampling pumps - as described in the SAP) and complete the well installations in a timely fashion

oz Residential Well SurveyTask 5A

During the past reporting period we completed our review of Federal and State computerized regulatory databases in order to identify other area sites of potential concern In addition GZA personnel are continuing to review of RIDEM files for the identified sites of environmental concern which have the potential to impact soil and water quality of the OU2 Study Area

GZA has completed the Town of Johnston file reviews of the Water Board and Tax Assessors Office to identify wells within OU2 which may be actively used as supply wells We continue to summarize and evaluate this information In addition we have begun to correlate the historical RIDOH and EPA residential well sampling data (presented in the OU1-RT) with our GIS database of located wells in order to identify areas of potential site related groundwater contamination

UPCOMING EVENTSACTIVITIES

FIELD ACTIVITIES

Deep Multi-level Well Installation (MW97-ML10VTask 4A The following is a tentative project schedule provided for planning purposes

PROPOSED PROJECT SCHEDULE (MW97-ML10) TASK DATE

Monitoring Well Design Approval February 6 through February 28 (Contractor Off-Site) Well Installation Commences March 3 Well Installation Completed March 5 Groundwater Samplma Commences March 10

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 4 of 5

Please note that field activities are highly dependent on the weather and the availability of subcontractors and equipment and are thus subject to change We will notify EPA and RIDEM as such changes become evident

REPORTS CORRESPONDENCE AND MEETINGS

We will issue a summary report evaluating the 15 month Stream Flow MeasurementsTask 3 surface water hydrology project by February 28 1997 oz We intend to issue tabular summaries of the validated OU2-Round 2 analytical data with the next regular Progress Report

KEY PERSONNEL

There have been no changes to the project staff

G JOBSCLF31030 EASPROGRESS RPTPR24-RPT DOC

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 5 of 5

MW97-ML10 WELL SCREEN SELECTION SUMMARAY TABLE

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

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DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

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CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

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GZA used the preliminary borehole geophysics data to select 16 ten-foot long test zones from the 230 feet of open borehole for the packer testing program (detailed on the attached summary table) On January 29 1997 DL Maher (Maher) of North Reading Massachusetts (the drilling contractor) mobilized a Smeal Hoist Rig to the site to begin extraction packer testing and discrete zone groundwater sampling of borehole MW97-ML10 The straddle packer assembly was first assembled and tested in a 17-foot piece of 6-inch steel casing for accuracy and precision of measurements GZA decided to perform all extraction testing and groundwater sampling prior to injection testing to avoid introducing potable water to the borehole prior to sampling On January 31 1997 during the testing of Zone No 10 (165 to 175 depth interval) the pump extraction line separated from its connection where it attached to the upper packer The packer assembly could not be repaired On February 3 1997 Maher re-mobilized to the site with a new packer assembly This new packer equipment was also tested for accuracy and precision prior to further borehole testing

Due to time constraints and the results of the Heat Tag Flow Meter logging which indicated no flow in the lower portions of the borehole GZA decided to commence injection packer testing on February 3 1997 instead of completing the lower zones of extraction testing Prior to injection testing the test water was collected from the on-site potable water supply source and allowed to stand for 24-hours within Mahers storage tanks GZA then sampled and tested the water for VOCs Packer test intervals and test pressures were determined by GZA in the field GZA personnel collected and recorded all pertinent testing data Maher demobilized from the site on February 5 1997 after completing all 16 zones of injection packer testing Raw packer test data was reduced and hydraulic conductivities (K values) were calculated using a computer program called Permcalc developed by GZA based on the methods presented in the Groundwater Manual US Department of Interior Revised Reprint 1981 Permcalc determines head loss due to friction using pipe flow methods and accounted for this when determining K values As seen in the attached table the injection packer testing results showed generally good agreement with the geophysical techniques However the injection packer testing is more sensitive in evaluating low conductivity fractures than is the Heat Tag Flow Meter

GZA has evaluated the drilling observations VOC screening geophysical analysis and hydraulic conductivity testing of the 300-foot deep bedrock well (MW97-ML10) on the dam between the Upper and Lower Simmons Reservoirs Based on the data reviewed we recommend installation of two 2-inch ID PVC wells one screened from 119 to 134 feet and one screened from 280 to 300 feet below ground surface We also recommend the installation of one 1-inch ID PVC well screened from 70 to 80 feet below ground surface The recommendation for the placement of a 1-inch ID well is based on the limited space

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 2 of 5

within the 6-inch ID borehole and our previous success with an installation of this type at MW95-ML9 When carefully sampled with a peristaltic pump we believe this installation will provide representative results for both organic and inorganic analysis Well screens are to be installed as described in the SAP which includes a sand filter packs extending 1 foot above and below the screens

In making our well placement recommendations GZA evaluated each borehole testing zone (ie 10 foot long packer testing and groundwater sampling zone) For your use in reviewing these recommendations we have attached 1) geophysical logging tables and figures and 2) a table summarizing field screening results laboratory screening and hydraulic conductivity testing results

oz The data demonstrates that the most hydraulically conductive zones are concentrated

at the top of the uncased portion of the borehole (between 70 and 120) This provides further evidence that groundwater contaminant transport in OU2 is most likely to occur at relatively shallow depths The upper-most recommended well installation zone (MW97shyML10A) lies right below and will slightly span the interface between the open borehole and the 6-inch steel well casing Given the shallow groundwater table (less than 10 feet) the fractures observed by the geophysical logging and the observed hydraulic conductivities (the highest recorded in this borehole) MW97-ML10A is well suited for both shallow bedrock groundwater quality monitoring and sampling by peristaltic pump

The deeper recommended well installation zones are more problematic due to very low observed hydraulic conductivities in the borehole In order to compensate for these low hydraulic conductivities we recommend installing a 15-foot screened interval for MW97shyML10B which spans the two hydraulically conductive portions of test zones 6 and 7 (based on the Heat Tag and packer test methods respectively) This sampling interval (118 to 135 including the filter sand pack) includes the highest reported chemical concentrations and encounters several large geophysical anomalies including absolute temperature and resistivity deflections corresponding to borehole enlargements indicated by the 3-arm caliper log and distinct high angle fractures with apparent aperture detected by the ATV log

In selecting the deepest screened zone (designated MW97-ML10C) we reviewed the available data and recommend installing a 20-foot screened interval (280 to 300 which spans two fractures observed on the ATV logs and the bottom reaches of a soft drilling zone in the borehole (approximately 265 to 285) A 20-foot screened interval was chosen to compensate for the very low K values observed at this depth The geophysical data shows both a caliper enlargement and large temperature and fluid resistivity anomalies at 290 feet

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 3 of 5

below ground surface which roughly corresponds with two high-angle fractures identified by the ATV Given roughly equivalent hydraulic conductivities (ie all reported as No Flow) of fractures in the bottom 100-feet of borehole GZA feels it would be imprudent not to span the deepest possible fractures to rule out deep interbasin migration of contaminants from the OU2 Study Area

The remaining project scheduled is provided below for planning purposes GZA would appreciate expedient regulatory review and commentary on MW97-ML10s monitoring well design configuration so that we can order the well specific dedicated sampling equipment (ie Well Wizard sampling pumps - as described in the SAP) and complete the well installations in a timely fashion

oz Residential Well SurveyTask 5A

During the past reporting period we completed our review of Federal and State computerized regulatory databases in order to identify other area sites of potential concern In addition GZA personnel are continuing to review of RIDEM files for the identified sites of environmental concern which have the potential to impact soil and water quality of the OU2 Study Area

GZA has completed the Town of Johnston file reviews of the Water Board and Tax Assessors Office to identify wells within OU2 which may be actively used as supply wells We continue to summarize and evaluate this information In addition we have begun to correlate the historical RIDOH and EPA residential well sampling data (presented in the OU1-RT) with our GIS database of located wells in order to identify areas of potential site related groundwater contamination

UPCOMING EVENTSACTIVITIES

FIELD ACTIVITIES

Deep Multi-level Well Installation (MW97-ML10VTask 4A The following is a tentative project schedule provided for planning purposes

PROPOSED PROJECT SCHEDULE (MW97-ML10) TASK DATE

Monitoring Well Design Approval February 6 through February 28 (Contractor Off-Site) Well Installation Commences March 3 Well Installation Completed March 5 Groundwater Samplma Commences March 10

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 4 of 5

Please note that field activities are highly dependent on the weather and the availability of subcontractors and equipment and are thus subject to change We will notify EPA and RIDEM as such changes become evident

REPORTS CORRESPONDENCE AND MEETINGS

We will issue a summary report evaluating the 15 month Stream Flow MeasurementsTask 3 surface water hydrology project by February 28 1997 oz We intend to issue tabular summaries of the validated OU2-Round 2 analytical data with the next regular Progress Report

KEY PERSONNEL

There have been no changes to the project staff

G JOBSCLF31030 EASPROGRESS RPTPR24-RPT DOC

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 5 of 5

MW97-ML10 WELL SCREEN SELECTION SUMMARAY TABLE

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

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VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

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poundOUir-M PR(5Bfr SN

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SPACING Ix-Rx FEET

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SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

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within the 6-inch ID borehole and our previous success with an installation of this type at MW95-ML9 When carefully sampled with a peristaltic pump we believe this installation will provide representative results for both organic and inorganic analysis Well screens are to be installed as described in the SAP which includes a sand filter packs extending 1 foot above and below the screens

In making our well placement recommendations GZA evaluated each borehole testing zone (ie 10 foot long packer testing and groundwater sampling zone) For your use in reviewing these recommendations we have attached 1) geophysical logging tables and figures and 2) a table summarizing field screening results laboratory screening and hydraulic conductivity testing results

oz The data demonstrates that the most hydraulically conductive zones are concentrated

at the top of the uncased portion of the borehole (between 70 and 120) This provides further evidence that groundwater contaminant transport in OU2 is most likely to occur at relatively shallow depths The upper-most recommended well installation zone (MW97shyML10A) lies right below and will slightly span the interface between the open borehole and the 6-inch steel well casing Given the shallow groundwater table (less than 10 feet) the fractures observed by the geophysical logging and the observed hydraulic conductivities (the highest recorded in this borehole) MW97-ML10A is well suited for both shallow bedrock groundwater quality monitoring and sampling by peristaltic pump

The deeper recommended well installation zones are more problematic due to very low observed hydraulic conductivities in the borehole In order to compensate for these low hydraulic conductivities we recommend installing a 15-foot screened interval for MW97shyML10B which spans the two hydraulically conductive portions of test zones 6 and 7 (based on the Heat Tag and packer test methods respectively) This sampling interval (118 to 135 including the filter sand pack) includes the highest reported chemical concentrations and encounters several large geophysical anomalies including absolute temperature and resistivity deflections corresponding to borehole enlargements indicated by the 3-arm caliper log and distinct high angle fractures with apparent aperture detected by the ATV log

In selecting the deepest screened zone (designated MW97-ML10C) we reviewed the available data and recommend installing a 20-foot screened interval (280 to 300 which spans two fractures observed on the ATV logs and the bottom reaches of a soft drilling zone in the borehole (approximately 265 to 285) A 20-foot screened interval was chosen to compensate for the very low K values observed at this depth The geophysical data shows both a caliper enlargement and large temperature and fluid resistivity anomalies at 290 feet

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 3 of 5

below ground surface which roughly corresponds with two high-angle fractures identified by the ATV Given roughly equivalent hydraulic conductivities (ie all reported as No Flow) of fractures in the bottom 100-feet of borehole GZA feels it would be imprudent not to span the deepest possible fractures to rule out deep interbasin migration of contaminants from the OU2 Study Area

The remaining project scheduled is provided below for planning purposes GZA would appreciate expedient regulatory review and commentary on MW97-ML10s monitoring well design configuration so that we can order the well specific dedicated sampling equipment (ie Well Wizard sampling pumps - as described in the SAP) and complete the well installations in a timely fashion

oz Residential Well SurveyTask 5A

During the past reporting period we completed our review of Federal and State computerized regulatory databases in order to identify other area sites of potential concern In addition GZA personnel are continuing to review of RIDEM files for the identified sites of environmental concern which have the potential to impact soil and water quality of the OU2 Study Area

GZA has completed the Town of Johnston file reviews of the Water Board and Tax Assessors Office to identify wells within OU2 which may be actively used as supply wells We continue to summarize and evaluate this information In addition we have begun to correlate the historical RIDOH and EPA residential well sampling data (presented in the OU1-RT) with our GIS database of located wells in order to identify areas of potential site related groundwater contamination

UPCOMING EVENTSACTIVITIES

FIELD ACTIVITIES

Deep Multi-level Well Installation (MW97-ML10VTask 4A The following is a tentative project schedule provided for planning purposes

PROPOSED PROJECT SCHEDULE (MW97-ML10) TASK DATE

Monitoring Well Design Approval February 6 through February 28 (Contractor Off-Site) Well Installation Commences March 3 Well Installation Completed March 5 Groundwater Samplma Commences March 10

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 4 of 5

Please note that field activities are highly dependent on the weather and the availability of subcontractors and equipment and are thus subject to change We will notify EPA and RIDEM as such changes become evident

REPORTS CORRESPONDENCE AND MEETINGS

We will issue a summary report evaluating the 15 month Stream Flow MeasurementsTask 3 surface water hydrology project by February 28 1997 oz We intend to issue tabular summaries of the validated OU2-Round 2 analytical data with the next regular Progress Report

KEY PERSONNEL

There have been no changes to the project staff

G JOBSCLF31030 EASPROGRESS RPTPR24-RPT DOC

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 5 of 5

MW97-ML10 WELL SCREEN SELECTION SUMMARAY TABLE

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

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L(X OIC IMF FEF r

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SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

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below ground surface which roughly corresponds with two high-angle fractures identified by the ATV Given roughly equivalent hydraulic conductivities (ie all reported as No Flow) of fractures in the bottom 100-feet of borehole GZA feels it would be imprudent not to span the deepest possible fractures to rule out deep interbasin migration of contaminants from the OU2 Study Area

The remaining project scheduled is provided below for planning purposes GZA would appreciate expedient regulatory review and commentary on MW97-ML10s monitoring well design configuration so that we can order the well specific dedicated sampling equipment (ie Well Wizard sampling pumps - as described in the SAP) and complete the well installations in a timely fashion

oz Residential Well SurveyTask 5A

During the past reporting period we completed our review of Federal and State computerized regulatory databases in order to identify other area sites of potential concern In addition GZA personnel are continuing to review of RIDEM files for the identified sites of environmental concern which have the potential to impact soil and water quality of the OU2 Study Area

GZA has completed the Town of Johnston file reviews of the Water Board and Tax Assessors Office to identify wells within OU2 which may be actively used as supply wells We continue to summarize and evaluate this information In addition we have begun to correlate the historical RIDOH and EPA residential well sampling data (presented in the OU1-RT) with our GIS database of located wells in order to identify areas of potential site related groundwater contamination

UPCOMING EVENTSACTIVITIES

FIELD ACTIVITIES

Deep Multi-level Well Installation (MW97-ML10VTask 4A The following is a tentative project schedule provided for planning purposes

PROPOSED PROJECT SCHEDULE (MW97-ML10) TASK DATE

Monitoring Well Design Approval February 6 through February 28 (Contractor Off-Site) Well Installation Commences March 3 Well Installation Completed March 5 Groundwater Samplma Commences March 10

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 4 of 5

Please note that field activities are highly dependent on the weather and the availability of subcontractors and equipment and are thus subject to change We will notify EPA and RIDEM as such changes become evident

REPORTS CORRESPONDENCE AND MEETINGS

We will issue a summary report evaluating the 15 month Stream Flow MeasurementsTask 3 surface water hydrology project by February 28 1997 oz We intend to issue tabular summaries of the validated OU2-Round 2 analytical data with the next regular Progress Report

KEY PERSONNEL

There have been no changes to the project staff

G JOBSCLF31030 EASPROGRESS RPTPR24-RPT DOC

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 5 of 5

MW97-ML10 WELL SCREEN SELECTION SUMMARAY TABLE

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

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L(X OIC IMF FEF r

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SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

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Please note that field activities are highly dependent on the weather and the availability of subcontractors and equipment and are thus subject to change We will notify EPA and RIDEM as such changes become evident

REPORTS CORRESPONDENCE AND MEETINGS

We will issue a summary report evaluating the 15 month Stream Flow MeasurementsTask 3 surface water hydrology project by February 28 1997 oz We intend to issue tabular summaries of the validated OU2-Round 2 analytical data with the next regular Progress Report

KEY PERSONNEL

There have been no changes to the project staff

G JOBSCLF31030 EASPROGRESS RPTPR24-RPT DOC

Central Landfill Operable Unit 2 - RIFS Progress Report No 24 Page 5 of 5

MW97-ML10 WELL SCREEN SELECTION SUMMARAY TABLE

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

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L(X OIC IMF FEF r

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SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

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5 Indies 7 10 Degree 5 C 20 FLUIDKESISIIVITY

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MW97-ML10 WELL SCREEN SELECTION SUMMARAY TABLE

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

N[ iiPHc5TF bull3N

L(X OIC IMF FEF r

CINC spfrnnMiN

oErrciOF TYPF

SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

bS ARMrAUPfR

Inches

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rtOWMFTLR AMBIENT FLOWWETER PUMPING 1 0 lOWN GPM UP 1 0 - 1 0 DOWN CPM UP 1 0

Hum Rf olSIIVIIY ^ I5() Hhni- Meier bull- 50

TFMIJEKArURf k 10 Degrees C 20

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5 Indies 7 10 Degree 5 C 20 FLUIDKESISIIVITY

^ 1 50 Ohm- Meters 250 ^

e_ ^~ FLOWMLILR AMBIENT

-1 0 DOWN GPM UP v hLOWMLFCR PULING 1 0 - 1 0 DOWN GPM UP

V

1 0

3 Ap-5- CFNTRAL IANDFII L Wpll MW97-ML10 Jan 1 61 997 (g5 JJte)

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140

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amp-hrS^gt bull r -- 5laquo=-^v_^

220

-iraquo^ tlAt- w - - tradeVJ

laquosc-laquo

BOREHOLE GEOPHYSICAL DATA LOGS

24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

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L(X OIC IMF FEF r

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SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

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24 January 1997

Mr Ed Summerly GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Re Final Geophysical log plots for Well MW97-ML10

Dear Ed

Please find enclosed 4 blue line prints and master copy for the Caliper Temperature-Fluid Resistivity and Heat Pulse Flowmeter Logs A black amp white ATV print with features A Fracture Table 2 Rose Diagrams and 2 Steronets of those features for the Central Landfill Well mw97-mllO All the Fracture data has been corrected for the local Magnetic Declination of N 145 W

I enjoyed my first project in Rhode Island and working for you and GZA If you have any questions or would like any additional processing please phone

Sincerely

Edward H Eaton Geophysical Engineer enclosures es-gzadoc

17301 W Colfax Suite 265 bull Golden CO 80401 bull (303) 279-0171 bull 1-800-753-0855 bull FAX (303) 279-2730

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

N[ iiPHc5TF bull3N

L(X OIC IMF FEF r

CINC spfrnnMiN

oErrciOF TYPF

SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

bS ARMrAUPfR

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Hum Rf olSIIVIIY ^ I5() Hhni- Meier bull- 50

TFMIJEKArURf k 10 Degrees C 20

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5 Indies 7 10 Degree 5 C 20 FLUIDKESISIIVITY

^ 1 50 Ohm- Meters 250 ^

e_ ^~ FLOWMLILR AMBIENT

-1 0 DOWN GPM UP v hLOWMLFCR PULING 1 0 - 1 0 DOWN GPM UP

V

1 0

3 Ap-5- CFNTRAL IANDFII L Wpll MW97-ML10 Jan 1 61 997 (g5 JJte)

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gtraquor E-i -ft^ bullbullbullbullbull bull

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130 vvrjgl f bull gt V

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140

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160

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laquosc-laquo

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

Feature Depth True Dip Direction Strike Direction Dip Angle Feature Rank Number (feet) (degrees) (degrees) (degrees) (OtoS)

1 697 62 N28W 43 1 2 707 40 N50W 70 1 3 71 161 N71E 42 1 4 768 148 N58E 66 1 5 792 302 N32E 27 2 6 802 30 N60W 19 2 7 806 204 N66W 47 2 8 832 38 N52W 70 2 9 838 202 N68W 32 1 10 876 158 N68E 55 1 11 883 305 N35E 78 1 12 92 190 N80W 21 1 13 963 46 N44W 67 2 14 976 42 N48W 64 1 15 98 157 N67E 37 1 16 100 51 N39W 68 2 17 1015 41 N49W 65 2 18 1024 79 N11W 62 1 19 1025 32 N58W 30 1 20 1072 320 N50E 46 1 21 1089 26 N64W 43 2 22 1092 30 N60W 50 1 23 1146 303 N33E 41 2 24 1152 298 N28E 52 3 25 1199 35 N55W 66 2 26 1206 32 N58W 58 2 27 1211 30 N60W 53 1 28 1216 22 N68W 64 3 29 1272 46 N44W 57 2 30 1285 46 N44W 63 3 31 1302 17 N73 W 59 2 32 1315 19 N71W 69 2 33 1332 3 N87W 45 1 34 1348 30 N60W 58 1 35 1371 326 N56E 24 0 36 145 85 N S W 10 0 37 1483 285 N15E 68 1 38 1489 212 N58W 44 1 39 1524 166 N76E 31 1 40 1572 36 N54W 34 1 41 1611 29 N61W 68 2 42 1653 0 FLAT 0 1 43 1663 232 N38W 45 1 44 1726 58 N32W 14 1

All Directions are corrected for a Magnetic Declination of N 145 W

Page 1 of 2

Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

N[ iiPHc5TF bull3N

L(X OIC IMF FEF r

CINC spfrnnMiN

oErrciOF TYPF

SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

bS ARMrAUPfR

Inches

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Feature Number

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Depth (feet) 1728 2037 2055 206

2096 2117 2183 2296 2296 2382 2661 2726 2727 2749 2827 2988

CENTRAL LANDFILL Well MW97-ML10

GZA GeoEnvironmental January 161997

True Dip Direction Strike Direction (degrees) (degrees)

20 N70W 332 N62E 174 N84E 116 N26E 1 N89W

77 N13W 16 N74W

266 N 4 W 182 N88W 299 N29E 119 N29E 170 N80E 25 N65W 160 N70E 47 N43W 311 N41E

Dip Angle (degrees)

24 22 68 58 21 10 49 10 65 17 16 64 49 69 59 74

Feature Rank (OtoS)

2 1 1 1 0 0 2 1 1 0 1 1 2 1 1 1

All Directions are corrected for a Magnetic Declination of N 145 W

PageZof 2

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

N[ iiPHc5TF bull3N

L(X OIC IMF FEF r

CINC spfrnnMiN

oErrciOF TYPF

SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

bS ARMrAUPfR

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5 Indies 7 10 Degree 5 C 20 FLUIDKESISIIVITY

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110

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-raquo- 2fcS ^Vgt _ ^W PS poundbull ^ gt ix- Iri ~ bull- gtf-t 5Sraquo y^gt

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gtraquor E-i -ft^ bullbullbullbullbull bull

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160

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-V bull X gtbull

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fepound^-poundvg3

amp-hrS^gt bull r -- 5laquo=-^v_^

220

-iraquo^ tlAt- w - - tradeVJ

laquosc-laquo

Ranking System For Acoustic Televiewer Features

Color CodeGrey

Observation Probable bedding feature or foliation

1 Cyan Weak feature (possibly bedding)-not continuous around the borehole

2 B|ue Clean distinct feature

Red Distinct feature with apparent aperture (feature is visible on Travel Time image)

4 Magenta Very distinct wide fracture or fractures possibly interconnected

5 Green Major fracture zone with large openings indicated on both the Amplitude and Travel Time images

This ranking system is based on a system developed and applied by Paillet (USGS WRD Borehole Geophysics Research Project) as a subjective evaluat on of permeability potential In general the higher the rank the greater the hkelihood of fracture interconnection and subsequent increased permeability

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

N[ iiPHc5TF bull3N

L(X OIC IMF FEF r

CINC spfrnnMiN

oErrciOF TYPF

SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

bS ARMrAUPfR

Inches

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CD

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rtOWMFTLR AMBIENT FLOWWETER PUMPING 1 0 lOWN GPM UP 1 0 - 1 0 DOWN CPM UP 1 0

Hum Rf olSIIVIIY ^ I5() Hhni- Meier bull- 50

TFMIJEKArURf k 10 Degrees C 20

~ ^ igt^ - ( i

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3ARMCAUPtR TIMPLRATURL s

5 Indies 7 10 Degree 5 C 20 FLUIDKESISIIVITY

^ 1 50 Ohm- Meters 250 ^

e_ ^~ FLOWMLILR AMBIENT

-1 0 DOWN GPM UP v hLOWMLFCR PULING 1 0 - 1 0 DOWN GPM UP

V

1 0

3 Ap-5- CFNTRAL IANDFII L Wpll MW97-ML10 Jan 1 61 997 (g5 JJte)

^ i

CO 5 pound S

VFLL

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STL

FILING No

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fi H m mdash

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bull I i ^ ^

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EJEEAIURE-W Till

3 cpound

90

100

_bulllt--

5i2 W|3poundibullv gtlaquo---v -bull bull --rv^sj^ J

bull3raquo bull - ^ - ^V fc raquo bull bull bullbullbull v ltraquo bullbull 1

bull T bull--T iV ltT V bull

110

bullgt - bull

-raquo- 2fcS ^Vgt _ ^W PS poundbull ^ gt ix- Iri ~ bull- gtf-t 5Sraquo y^gt

rltamp

gt3

V^^v--^Si^^

c - bull bullbullbull ^bullbullbullbullbullbullbull~poundf^ r-r^j

gtraquor E-i -ft^ bullbullbullbullbull bull

bullltbull -jJ r v^ bull bull IT j rgtlraquoxraquo fc

t^ --x^laquo

f-A 2ampF fe tf

-2 shy120

i-

regPVlt-ltbull gt~^ Ss^S1 poundpound ZSgt ^ iraquogt^rS^ [bullJsS^ri-li- v ^bull-bullc^r^^ P r- V^M ilaquoxTltv lVgt bull bull laquo - -

130 vvrjgl f bull gt V

amp bull mdashrrbullpoundpound ^ -V bull Vitsr513

140

^^p| bull-bullgt v bullraquo v shy- - lt--

(0

~ pound

150

poundtfpound5 bulllt amp-ampampip poundjv^gt opound^

160

P8pound-V gt- i ^i-^rr bullvc-ri] -bullbullbull-gt - - bullbull-bullI

-V bull X gtbull

-i(rJ shy--- - bull-^-

laquobullbullgtbullbullbullIshy fjSamprf

laquo J

V-^ -1 bull -~

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-ltijraquoltvgt 5

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SWif mdash laquo ltbull lt -laquot

170

amp- - bull-

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190

-1 180 i

r- ~

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I

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bullri rs _

200 -bull _ t shy

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|0

210

fepound^-poundvg3

amp-hrS^gt bull r -- 5laquo=-^v_^

220

-iraquo^ tlAt- w - - tradeVJ

laquosc-laquo

N NU97-ML10 DIP DIRECTION Calculation Method Class Interval Fi I tenng Data Type Rotation Amount Population Maximum Percentage Mean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivated Unidirectianal 0 0 Degrees 60 11 7 Percent 3 0 Percent 2 06 Percent 33 33 Degrees 28 18 Degrees 0 35

16 11 12 10 8 6 1 2 2 1 6 10 12 11 16

MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

N[ iiPHc5TF bull3N

L(X OIC IMF FEF r

CINC spfrnnMiN

oErrciOF TYPF

SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

bS ARMrAUPfR

Inches

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1mdash 1- 1

bull4- 1mil TLraquo_

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rtOWMFTLR AMBIENT FLOWWETER PUMPING 1 0 lOWN GPM UP 1 0 - 1 0 DOWN CPM UP 1 0

Hum Rf olSIIVIIY ^ I5() Hhni- Meier bull- 50

TFMIJEKArURf k 10 Degrees C 20

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MU97-NL10 DIP ANGLE Calculation hethod Class Interval Fi I termg Data Type Rotation Amount Population flax i mum Percentage hean Percentage Standard Deviation Vector Mean Confidence Interval R-mag

Frequency 5 Degrees Deactivoted Unidirectional 0 0 Degrees 60 16 7 Percent 6 7 Percent 1 32 Percent 16 82 Degrees 5 10 Degrees 0 W

MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

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TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

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T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

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IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

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MU97-ML10 ATV FEATURES Projection Schmidt Number oF Sample Points 60

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

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LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

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5 Indies 7 10 Degree 5 C 20 FLUIDKESISIIVITY

^ 1 50 Ohm- Meters 250 ^

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-1 0 DOWN GPM UP v hLOWMLFCR PULING 1 0 - 1 0 DOWN GPM UP

V

1 0

3 Ap-5- CFNTRAL IANDFII L Wpll MW97-ML10 Jan 1 61 997 (g5 JJte)

^ i

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VFLL

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bull T bull--T iV ltT V bull

110

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rltamp

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140

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160

P8pound-V gt- i ^i-^rr bullvc-ri] -bullbullbull-gt - - bullbull-bullI

-V bull X gtbull

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|0

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amp-hrS^gt bull r -- 5laquo=-^v_^

220

-iraquo^ tlAt- w - - tradeVJ

laquosc-laquo

nU97-ML10 ATV FEATURES Step Function Grid Numoer oF Sample Points 60

1 7 to 3 9 3 9 to 6 1 6 1 to 8 3 8 3 to 10 6

10 6 to 12 8 12 8 to 15 0

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

N[ iiPHc5TF bull3N

L(X OIC IMF FEF r

CINC spfrnnMiN

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SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

10 CSG S1ICKUP - 25 AROW CM KlOW 1^ SHOWN ON OAR GRAPH IN GPM UPFLOW

IS POSI IlVt ( I f ) lllf RIGHT) ANL1 DOWNfLOW IS

na - not applicable NLGAflVl (TO 1HL LLI 1 ) NO Mt AoURC A8LL

NA - NOT AVAILABLE FLOV (NMF) IS A riUFD IN SQUARISH SYMBOL

CFNIRAL LANDFILL Well MW9 -ML1 0 Jan 161997

FLOWMETLR AMBIENT bdquo FLOWMETER PUMPING 0 DOWN CPM OP 10 ^ -10 DOWN (^PM UP 1

HrCSf SIK KUP shy 2 V AROW CI KOW Ib SHOWN ON UAK (XAPH IN Gl M UPhLOW

IS POSIT IVL ( IO IHf RIGHT) AND DOWN)- LOW IS

no not opvlicoblshy NIGAHVl ( T O H I L L U I) NO ML AL-4JRL A8L L

NA shy NOT AVAI1 AHl 1 f 1 OW (NMF ) IS A T i l 1 ED IN SQUARISH GYMOOL

C b M I R A I I ANDFI

bS ARMrAUPfR

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Hum Rf olSIIVIIY ^ I5() Hhni- Meier bull- 50

TFMIJEKArURf k 10 Degrees C 20

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3ARMCAUPtR TIMPLRATURL s

5 Indies 7 10 Degree 5 C 20 FLUIDKESISIIVITY

^ 1 50 Ohm- Meters 250 ^

e_ ^~ FLOWMLILR AMBIENT

-1 0 DOWN GPM UP v hLOWMLFCR PULING 1 0 - 1 0 DOWN GPM UP

V

1 0

3 Ap-5- CFNTRAL IANDFII L Wpll MW97-ML10 Jan 1 61 997 (g5 JJte)

^ i

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VFLL

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FILING No

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EJEEAIURE-W Till

3 cpound

90

100

_bulllt--

5i2 W|3poundibullv gtlaquo---v -bull bull --rv^sj^ J

bull3raquo bull - ^ - ^V fc raquo bull bull bullbullbull v ltraquo bullbull 1

bull T bull--T iV ltT V bull

110

bullgt - bull

-raquo- 2fcS ^Vgt _ ^W PS poundbull ^ gt ix- Iri ~ bull- gtf-t 5Sraquo y^gt

rltamp

gt3

V^^v--^Si^^

c - bull bullbullbull ^bullbullbullbullbullbullbull~poundf^ r-r^j

gtraquor E-i -ft^ bullbullbullbullbull bull

bullltbull -jJ r v^ bull bull IT j rgtlraquoxraquo fc

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130 vvrjgl f bull gt V

amp bull mdashrrbullpoundpound ^ -V bull Vitsr513

140

^^p| bull-bullgt v bullraquo v shy- - lt--

(0

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150

poundtfpound5 bulllt amp-ampampip poundjv^gt opound^

160

P8pound-V gt- i ^i-^rr bullvc-ri] -bullbullbull-gt - - bullbull-bullI

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-ltijraquoltvgt 5

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SWif mdash laquo ltbull lt -laquot

170

amp- - bull-

fl 0 - bull- -

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190

-1 180 i

r- ~

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bullri rs _

200 -bull _ t shy

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|0

210

fepound^-poundvg3

amp-hrS^gt bull r -- 5laquo=-^v_^

220

-iraquo^ tlAt- w - - tradeVJ

laquosc-laquo

ffffrf WELLMW97-ML1O BOREHOLE GEOPHYSICS LOGS 3 ARM CALIPER

TEMPERATURE-FLUID 1 73O1 W GOLF AX STE 265 GOLDEN CO 30401 RESISTIVITY HEAT PHONE (3O3) 279-O1 71 FAX 279-2730 PULSE FLOWMETER

PROJECT CENTRAL LANDFILL DATE January 1 61 997

CLIENT GZA GeoEnvironrrentalt Inc COUNTY PROVIDENCE

LOCATION NA STATERHODE ISLAND BOREHOLE DATA

DRILLING CONTRACTOR DL MAHER ENVIRONMENTAL CUSTOMER TD 3OO ft

ELEV APPROX 293 DEPTH REF GROUND LEVEL COLOG TD 3OO ft

RUN Bl T RECORD CASING RECORD

NO Pit Size From To Si-zeWgtThk From To

5 78 7O1 300 6 ID SURF 70

DRILL METHOD AIR HAMMFR DA1E DRILLED NA TIME SINCE CIRC NA

HOLE MEDIUM WATER FLUID LEVEL H1 MUD TYPE na

VISCOSITY na WEIGHT na Rm na at na Deg

GENERAL D A T A

LOGGING ENGINEER ED EATON AND KJELL MOE INSTRUMENTS MSI Series III

CLIENT REP Mr ED SUMMERLY wGA UNI FTRUCK 17

O THEK SERVICES ACOUSTIC TELEVIEWER

I OGGING f)A f A

LOG F UNO r ION

RUN NO MODEL

poundOUir-M PR(5Bfr SN

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L(X OIC IMF FEF r

CINC spfrnnMiN

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SPACING Ix-Rx FEET

Rx-Rx FEET

SOURCE TYPE SITE

CURIt

LOGGED INTERVAL FROM TO INT

FEET

CALIILR 1 GLtshy C004 UM1 4laquo4 ur 15 299 59 240

T-KR 5 MLP 14H3 UM1 484 01 12 9 5OO 291

FLOWMEfER 4 HFP 21 49 UM1 484 na no 66 29J

SOURCL SN(S) NONE CALIBRATION FACfOR(S)

DIGITAL FILE NAME(S) MW97ML1 03D2

REMARKS

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170

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190

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190

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220

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200 -bull _ t shy

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|0

210

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220

-iraquo^ tlAt- w - - tradeVJ

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fepound^-poundvg3

amp-hrS^gt bull r -- 5laquo=-^v_^

220

-iraquo^ tlAt- w - - tradeVJ

laquosc-laquo

m230

laquo v

240

amppound

bull

bullraquobull -fl

ftraquo

V IrlT-tf

~iraquof

laquo^c^

250

Ef^35iLwfvr rsrraquolt

gtlt rgtlaquor

bulllaquojlaquoU

260 gt y shyt^J

260

270

280

290

fc^^rv^bullraquo^ i-trf VIZ

m

290

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GC SCREENING DATA SHEETS

3ZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

INVOICE NO 003273 WORK ORDER NO 9702-00007 DATE INVOICED 20797 DATE RECEIVED 20397

CUSTOMER NO RI PROJECT NO 3184200 PROJECT NAME Deep Well Installation

SUBJECT Deep Well Installation Johnston RI

Invoice For Laboratory Services

Sample ID Matrix Parameter Method Charge

ZONE-1 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-2 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-3 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-4 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-5 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-6 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-7 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-8 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-9 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-10 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

TRIP BLANK aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

Amount Invoiced $77000

Reviewed by

bull

bullraquobull -fl

ftraquo

V IrlT-tf

~iraquof

laquo^c^

250

Ef^35iLwfvr rsrraquolt

gtlt rgtlaquor

bulllaquojlaquoU

260 gt y shyt^J

260

270

280

290

fc^^rv^bullraquo^ i-trf VIZ

m

290

Ij ll

GC SCREENING DATA SHEETS

3ZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

INVOICE NO 003273 WORK ORDER NO 9702-00007 DATE INVOICED 20797 DATE RECEIVED 20397

CUSTOMER NO RI PROJECT NO 3184200 PROJECT NAME Deep Well Installation

SUBJECT Deep Well Installation Johnston RI

Invoice For Laboratory Services

Sample ID Matrix Parameter Method Charge

ZONE-1 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-2 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-3 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-4 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-5 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-6 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-7 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-8 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-9 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-10 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

TRIP BLANK aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

Amount Invoiced $77000

Reviewed by

260

270

280

290

fc^^rv^bullraquo^ i-trf VIZ

m

290

Ij ll

GC SCREENING DATA SHEETS

3ZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

INVOICE NO 003273 WORK ORDER NO 9702-00007 DATE INVOICED 20797 DATE RECEIVED 20397

CUSTOMER NO RI PROJECT NO 3184200 PROJECT NAME Deep Well Installation

SUBJECT Deep Well Installation Johnston RI

Invoice For Laboratory Services

Sample ID Matrix Parameter Method Charge

ZONE-1 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-2 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-3 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-4 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-5 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-6 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-7 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-8 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-9 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-10 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

TRIP BLANK aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

Amount Invoiced $77000

Reviewed by

280

290

fc^^rv^bullraquo^ i-trf VIZ

m

290

Ij ll

GC SCREENING DATA SHEETS

3ZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

INVOICE NO 003273 WORK ORDER NO 9702-00007 DATE INVOICED 20797 DATE RECEIVED 20397

CUSTOMER NO RI PROJECT NO 3184200 PROJECT NAME Deep Well Installation

SUBJECT Deep Well Installation Johnston RI

Invoice For Laboratory Services

Sample ID Matrix Parameter Method Charge

ZONE-1 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-2 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-3 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-4 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-5 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-6 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-7 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-8 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-9 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-10 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

TRIP BLANK aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

Amount Invoiced $77000

Reviewed by

m

290

Ij ll

GC SCREENING DATA SHEETS

3ZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

INVOICE NO 003273 WORK ORDER NO 9702-00007 DATE INVOICED 20797 DATE RECEIVED 20397

CUSTOMER NO RI PROJECT NO 3184200 PROJECT NAME Deep Well Installation

SUBJECT Deep Well Installation Johnston RI

Invoice For Laboratory Services

Sample ID Matrix Parameter Method Charge

ZONE-1 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-2 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-3 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-4 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-5 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-6 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-7 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-8 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-9 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-10 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

TRIP BLANK aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

Amount Invoiced $77000

Reviewed by

GC SCREENING DATA SHEETS

3ZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

INVOICE NO 003273 WORK ORDER NO 9702-00007 DATE INVOICED 20797 DATE RECEIVED 20397

CUSTOMER NO RI PROJECT NO 3184200 PROJECT NAME Deep Well Installation

SUBJECT Deep Well Installation Johnston RI

Invoice For Laboratory Services

Sample ID Matrix Parameter Method Charge

ZONE-1 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-2 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-3 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-4 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-5 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-6 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-7 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-8 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-9 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-10 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

TRIP BLANK aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

Amount Invoiced $77000

Reviewed by

3ZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

INVOICE NO 003273 WORK ORDER NO 9702-00007 DATE INVOICED 20797 DATE RECEIVED 20397

CUSTOMER NO RI PROJECT NO 3184200 PROJECT NAME Deep Well Installation

SUBJECT Deep Well Installation Johnston RI

Invoice For Laboratory Services

Sample ID Matrix Parameter Method Charge

ZONE-1 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-2 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-3 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-4 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-5 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-6 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-7 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-8 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-9 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

ZONE-10 aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

TRIP BLANK aqueous VOLATILE ORGANIC COMPOUNDS GC SCREEN $7000

Amount Invoiced $77000

Reviewed by

GZA GeoEnvironmental Inc 320 Needham Street

Newton Upper Falls MA 02164

A N A L Y T I C A L R E P O R T

GZA GeoEnvironmental Inc 140 Broadway Providence RI 02903

Ed Summerly

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-1 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 1 1-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 1 1 1-Trichloroethane 11-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Date Received 20397 Date Reported 20797 Work Order No 9702-00007

Sample No 1

Results Units Tech Analysis Date

AGS 20597 lt10 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ugL AGS 20597 lt20 ugL AGS 20597 lt 10 ugL AGS 20597 lt30 ugL AGS 20597 lt5 ugL AGS 20597 36 ugL AGS 20597 lt5 ugL AGS 20597 lt5 ugL AGS 20597 lt5 ugL AGS 20597

lt1000 ugL AGS 20597 lt1000 ugL AGS 20597 lt200 ugL AGS 20597 lt50 ugL AGS 20597 lt50 ugL AGS 20597 lt50 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ugL AGS 20597 lt 10 ppm (vv) AGS 20597

2 Page NoGZA GeoEnvironmental Inc

A N A L Y T I C A L R E P O R T

Work Order No 9702-00007

Sample No 2

Results Units Tech Analysis Date

AGS 20597 lt10 ugL ACS 20597 lt10 ugL AGS 20597 lt10 ugL AGS 20597 lt10 ugL AGS 20597 lt10 ugL AGS 20597 lt10 ugL AGS 20597 lt10 ugL AGS 20597 lt10 ugL AGS 20597 lt20 ugL AGS 20597 lt10 ugL AGS 20597 lt30 ugL AGS 20597 lt5 ugL AGS 20597 36 ugL AGS 20597 lt5 ugL AGS 20597 lt5 ugL AGS 20597 lt5 ugL AGS 20597

lt1000 ugL AGS 20597 lt1000 ugL AGS 20597 lt200 ugL AGS 20597 lt50 ugL AGS 20597 lt50 ugL AGS 20597 lt50 ugL AGS 20597 lt10 ugL AGS 20597 lt10 ugL AGS 20597 lt10 ugL AGS 20597 lt10 ppm (vv) AGS 20597

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-2 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 1 1-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 11 1-Trichloroethane 11-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

3 Page NoGZA GeoEnvironmental Inc

R E P O R T

Results

lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 43 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-3 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 1 1-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 111-Trichloroethane 1 1-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Work Order No 9702-00007

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm (vv)

Sample

Tech

AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

No 3

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

4 Page NoGZA GeoEnvironmental Inc

R E P O R T

Results

lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 43 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-4 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 1 1-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 11 1-Trichloroethane 11-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Work Order No 9702-00007

No 4

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm (vv)

Sample

Tech

AGS ACS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

GZA GeoEnvironmental Inc Page No 5

A N A L Y T I C A L R E P O R T

Project Name Deep Well Installation Project No 3184200 Work Order No 9702-00007

Sample ID ZONE-5 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 11-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 11 1-Trichloroethane 11-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Results

lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 40 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm (vv)

Sample

Tech

AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

No 5

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

6 Page NoGZA GeoEnvironmental Inc

R E P O R T

Results

lt10 64 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 21 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-6 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 11-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 11 1-Trichloroethane 1 1-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Work Order No 9702-00007

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm (vv)

Sample

Tech

ACS ACS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

No 6

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

6 Page NoGZA GeoEnvironmental Inc

R E P O R T

Results

lt10 64 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 21 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-6 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 11-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 11 1-Trichloroethane 1 1-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Work Order No 9702-00007

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm (vv)

Sample

Tech

ACS ACS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

No 6

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

7 Page NoGZA GeoEnvironmental Inc

R E P O R T

Results

lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 lt5 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-7 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 11-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 111 -Trichloroethane 1 1-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Work Order No 9702-00007

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm (vv)

Sample

Tech

ACS ACS ACS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

No 7

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

8 GZA GeoEnvironmental Inc

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-8 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 1 1-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 111 -Trichloroethane 1 1-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

R E P O R T

Results

lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 15 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

Work Order No

Sample

Units Tech

ACS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ugL AGS ppm (vv) AGS

Page No

9702-00007

No 8

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

9 Page NoGZA GeoEnvironmental Inc

R E P O R T

Results

lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 11 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE-9 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 1 1-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 11 1-Trichloroethane 11-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Work Order No 9702-00007

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm (vv)

Sample

Tech

ACS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

No 9

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

Page No 10 GZA GeoEnvironmental Inc

R E P O R T

Results

lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 16 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID ZONE- 10 Sample Date 13197

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 1 1-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 111 -Trichloroethane 11-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Work Order No 9702-00007

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm (vv)

Sample

Tech

AGS ACS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

No 10

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

Page No 11 GZA GeoEnvironmental Inc

R E P O R T

Results

lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt10 lt20 lt10 lt30 lt5 lt5 lt5 lt5 lt5

lt1000 lt1000 lt200 lt50 lt50 lt50 lt10 lt10 lt10 lt10

A N A L Y T I C A L

Project Name Deep Well Installation Project No 3184200

Sample ID TRIP BLANK Sample Date 13097

Test Performed

VOLATILE ORGANIC COMPOUNDS Tetrachloroethene Trichloroethene 11-Dichloroethene cis-1 2-Dichloroethene trans-1 2-Dichloroethene Vinyl Chloride 111-Trichloroethane 11-Dichloroethane 1 2-Dichloroethane Chloroethane Methyl-Tert-Butyl-Ether Benzene Toluene Ethyl Benzene mp-Xylene o-Xylene Acetone Methyl Ethyl Ketone Methyl Isobutyl Ketone Methylene Chloride Chloroform Carbon Tetrachloride Freon 113 Chlorobenzene Styrene Methane

Work Order No 9702-00007

No 11

Analysis Date

20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597 20597

Method

GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN GC SCREEN

Units

ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ugL ppm

Sample

Tech

AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS

(vv) AGS

GZA GeoEnvironmental Inc Page No 12

A N A L Y T I C A L R E P O R T

Project NameProject No

Deep Well Installation 3184200 Work Order No 9702-00007

PROJECT NARRATIVE

1 GC Screen Data

Attach QC Screen 2597

Organic Data Authorized By_ bullvtM R = Recovery NA = Not Applicable DF = Dilution Factor DO = Diluted Out

Soil data is reported on a dry weight basis unless otherwise specified

Laboratory Identification Numbers

MA MA092CT PH0579NY 11063NC 491

NH 202892 NJ 59759

RI A46

1. barcode 3248
2. barcodetext SEMS Doc ID 3248

1. barcode 3248
2. barcodetext SEMS Doc ID 3248