1.0 INTRODUCTION AND BACKGROUND · 2019-07-28 · 1.0 INTRODUCTION AND BACKGROUND This letter...
Transcript of 1.0 INTRODUCTION AND BACKGROUND · 2019-07-28 · 1.0 INTRODUCTION AND BACKGROUND This letter...
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Golder Associates Ireland Limited
Town Centre House, Dublin Road, Naas, Co. Kildare, Ireland
T: +353 45 81 0200
Registered in Ireland Registration No. 297875
Town Centre House, Dublin Road, Naas, Co. Kildare, Ireland
Directors: S. Copping, A. Harris (British), DRV Jones
VAT No.: 8297875W golder.com
21 May 2019 Project No. 18113929.L02.B0
Mary Dwane
Vistakon Ireland
Johnson & Johnson Limited
National Technology Park
Castletroy
Limerick
GROUNDWATER MONITORING OF TOTAL SUSPENDED SOLIDS IN GW10
Dear Mary
1.0 INTRODUCTION AND BACKGROUND
This letter report details the sampling of Total Suspended Solids (TSS) in groundwater monitoring well GW10,
which is located at the Vistakon Johnson & Johnson plant located at the National Technological Park, Castletroy,
Limerick City (the “Site”).
The Vistakon facility is currently undergoing expansion. As part of this facility expansion a new building has
been planned over the location of a monitoring well GW2. Vistakon informed the EPA of their intention to
decommission monitoring well GW2 and replace it with a suitable downgradient alternative outside the new
building footprint in correspondence dated 20 March 2018. GW10 was installed as a replacement monitoring
well for GW2, (Location identified in Attachment 1 as ‘GW2-NEW’). GW10 was installed on 08 January 2019
by Fogarty Drilling under the direction of John Sisk & Son (Holdings) Ltd. (Sisk).
Vistakon requested that Golder complete concurrent sampling of well GW2 and GW10 prior to final
decommissioning of GW2. Groundwater monitoring was undertaken by a Golder Scientist on 11 February 2019,
to assess the groundwater quality in the two wells as requested by Vistakon. This monitoring was reported to
Vistakon in a letter report (Document reference: P18113929.L01.B0). An elevated concentration of total
suspended solids (TSS) (241 mg/L) was identified in the groundwater sample from GW10. The monitoring
results were submitted to the EPA as part of the IE licence groundwater monitoring programme. The EPA has
requested that follow up monitoring for TSS was completed at monitoring well GW10.
In response to this request by the EPA, Vistakon directed Golder to conduct subsequent TSS monitoring at
GW10 on their behalf to satisfy the Agency’s request. Golder mobilised to site on 10 May 2019 to complete this
sampling. The scope of works and results are described below.
2.0 SCOPE OF WORKS
Golder completed to following scope of works to collect a groundwater sample from GW10:
Well purging (by submersible whale pump) to remove stagnant water from the well to ensure that the
groundwater sample was representative of the aquifer prior to dispatch to the laboratory for analysis;
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Mary Dwane Project No. 18113929.L02.B0
21 May 2019
2
Measurement of unstable water quality parameters in the field (pH, temperature, electrical conductivity
dissolved oxygen and redox) using a calibrated field meter;
Collection of the groundwater sample for laboratory analysis. Sample collected directly into laboratory
supplied containers by experienced field staff to ensure sample integrity;
Completion of appropriate Chain of Custody (COC) documentation for sample traceability purposes and
dispatch of the sample to the laboratory by overnight courier; and
Reporting of results of analysis and findings of the site visit.
2.1 GROUNDWATER LEVELS
Groundwater levels recorded are presented in Table 1. Depths from the Top of Casing (TOC) to water level
were measured from the top of the piezometer in all wells.
Table 1: Groundwater Monitoring Well Water Levels and Depths
Monitoring Well ID Groundwater Level Well Bottom
mBTOC mBTOC
GW10 3.14 18.56
2.2 Groundwater Sampling
Prior to sampling GW10 was purged using the submersible whale pump for a period of 1 hour to ensure
representative groundwater samples were collected, and residual silt from the well’s installation were extracted
as far as possible. The additional purging period was completed as it was evident form the colour of the purge
waters that well development completed during the installation of GW10 may not have been sufficient to remove
fines from the well.
Field parameters were measured during purging and sampling of well GW10 (Table 2) using a field calibrated
smarTROLL multi-parameter meter.
The groundwater sample was collected in laboratory supplied containers and stored in a cooler box with ice
packs. The laboratory Chain of Custody (COC) was completed and samples were couriered to Exova Jones
Environmental Laboratories in the United Kingdom, for testing. Exova Jones Environmental Laboratories are
UKAS accredited. During the monitoring, the sample recovered from GW10 was noted to contain no obvious
odours upon sampling, nor was there sheen present in the groundwater. The collected water sample appeared
to be clear and free from visible silt/ fines in the well annulus.
Table 2: Field parameter measurements (10 May 2019).
Monitoring Well ID pH Conductivity
(µS/cm) Temperature
(°C) Redox ORP
(mV) DO
(mg/L)
GW10 6.92 665.1 11.40 -10.2 0.91
2.3 LABORATORY ANALYSIS
Results of analysis are tabulated in Table 3 and are compared to the European Communities Environmental
Objectives (Groundwater) Regulations, 2010 (Statutory Instrument No. 9 of 2010), or 2016 (Statutory Instrument
No. 366 of 2016).
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Mary Dwane Project No. 18113929.L02.B0
21 May 2019
3
Table 3: Groundwater monitoring results (10 May 2019), laboratory assessment.
Parameter Units GW Regs SI No 9 of 2010 / SI No 366 of
2016
GW10
Total Suspended Solids mg/L - <10
3.0 LABORATORY ANALYTICAL RESULTS
As can be seen from Table 3 above the TSS result measured for GW10 was below the laboratory detection limit
of 10mg/L. The laboratory certificate for the samples has been included in Attachment 2 of this letter report.
3.1 Discussion
The TSS result of <10 mg/L for GW10 collected on 10 May 2019 is considered representative for this well. Well
GW10 is screened in limestone between 11.5 and 19.2m below ground level (bgl). Refer to the attached
borehole log as received from Fogarty Drilling Ltd. Whilst there may be some clay infilling in the upper weathered
horizons generally limestone bedrock typically exhibits low TSS characteristics. The likely cause of the elevated
TSS concentration reported for the first sample collected from GW10 is that the well was not sufficiently
developed during drilling. Well development is the process of removing fines from a well prior to installation of
the piezometer. Fine sediments from the destructive drilling process can be retained in the well annulus and
gravel pack prior or in some weathered sections of the limestone. Purging of the well prior to sampling gradually
removes these fines and typically TSS levels drop over time.
The increased purge time completed for GW10 during the May 2019 monitoring event ensured that more fines
have been removed from the annulus / gravel pack and that one can expect lower TSS levels in this well that
are representative of the bedrock aquifer. Golder recommend that purge levels in GW10 continue to be high
and that the well is further developed during subsequent monitoring rounds this year to remove fines form the
well.
4.0 CONCLUSIONS
Monitoring well GW10 was installed on 08 January 2019 at the Vistakon facility as a replacement well for GW2
(as agreed with the EPA).
Concurrent monitoring of GW10 and GW2 on 11 February 2019 prior to decommissioning of GW2 identified an
elevated TSS concentration of 241 mg/L for well GW10. The EPA requested that well GW10 was re-sampled
for TSS. At the request of Vistakon, Golder completed a repeat monitoring event for GW10 for on 10 May 2019.
The TSS result for the May 2019 monitoring round was below the laboratory detection limit of 10 mg/L. It
appears that some fines/sediments that are created during the destructive air hammer drilling process remained
in the well annulus / gravel pack after well development. This means that elevated TSS were entrained in the
sample from GW10 after the first monitoring event – which are not representative of the limestone aquifer
conditions. Prior to sampling on 10 May 2019 Golder completed an hour-long purge of the well to ensure that
fines were removed. Golder recommend that increased purging to ensure well development along the entire
well screen length is completed for each subsequent monitoring event in 2019 to aid the well development.
Golder expect that the low/non detect TSS values are representative of the weathered limestone aquifer in
which GW10 is screened.
Golder consider that no follow up action is required in relation to the TSS concentrations observed in GW10 and
that the routine IE licence groundwater monitoring programme is continued as normal for the remainder of 2019.
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Mary Dwane Project No. 18113929.L02.B0
21 May 2019
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Yours sincerely
Golder Associates Ireland Limited
Kevin McGillycuddy Trevor Montague
Environmental Consultant Geo Environmental Director
KMG/TM/kmg
Attachment 1 – Figure Well Location
Attachment 2 – Exova Laboratory Report
Attachment 3 – GW10 Borehole Log
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VISION CARE (IRELAND)
JOHNSON & JOHNSON VISION CARE (IRELAND)
INDUSTRIAL EMISSIONS LICENCE REVIEW
PROPOSED GROUND WATER
MONITORING INSTALLATION FOR GW2
IE0311829
IE0311829-30-DR-0001
AS SHOWN
GW2
LEGEND
NOTES
GW2 - LAYOUT PLAN
FORMAL ISSUE
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Unit 3 Deeside Point
Zone 3
Deeside Industrial Park
Deeside
Golder Associates Ltd
Attention :
Date :
Your reference :
Our reference :
Location :
Date samples received :
Status :
Issue :
Vistakon J&J
14th May, 2019
Final report
Senior Project Manager
Exova Jones Environmental
CH5 2UA
Tel: +44 (0) 1244 833780
Fax: +44 (0) 1244 833781
One sample were received for analysis on 14th May, 2019 of which one were scheduled for analysis. Please find attached our Test Report which
should be read with notes at the end of the report and should include all sections if reproduced. Interpretations and opinions are outside the scope of
any accreditation, and all results relate only to samples supplied.
All analysis is carried out on as received samples and reported on a dry weight basis unless stated otherwise. Results are not surrogate corrected.
Town Centre House
Dublin Road
Naas
Co Kildare
Ireland
Registered Office: Exova Environmental UK Limited, 10 Lower Grosvenor Place, London, SW1W 0EN. Reg No. 11371415
Compiled By:
Test Report 19/7755 Batch 1
Kevin McGillycuddy
15th May, 2019
1
Paul Boden BSc
18113929
QF-PM 3.1.1 v16Please include all sections of this report if it is reproduced
All solid results are expressed on a dry weight basis unless stated otherwise. 1 of 6
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Client Name: Report : Liquid
Reference:
Location:
Contact: Liquids/products: V=40ml vial, G=glass bottle, P=plastic bottle
JE Job No.: 19/7755 H=H2SO4, Z=ZnAc, N=NaOH, HN=HN03
J E Sample No. 1-2
Sample ID GW10
Depth
COC No / misc
Containers P
Sample Date 10/05/2019
Sample Type Ground Water
Batch Number 1
Date of Receipt 14/05/2019
Total Suspended Solids # <10 <10 mg/l TM37/PM0
Vistakon J&J
Kevin McGillycuddy
Please see attached notes for all
abbreviations and acronyms
LOD/LOR UnitsMethod
No.
Exova Jones Environmental
Golder Associates Ltd
18113929
QF-PM 3.1.2 v11Please include all sections of this report if it is reproduced
All solid results are expressed on a dry weight basis unless stated otherwise. 2 of 6
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Notification of Deviating Samples
J E
Job
No.
Batch Depth J E Sample
No.Analysis Reason
Please note that only samples that are deviating are mentioned in this report. If no samples are listed it is because none were deviating.
Only analyses which are accredited are recorded as deviating if set criteria are not met.
Contact:
Sample ID
Client Name: Golder Associates Ltd
Reference:
Location:
No deviating sample report results for job 19/7755
Exova Jones Environmental
18113929
Vistakon J&J
Kevin McGillycuddy
QF-PM 3.1.11 v3 Please include all sections of this report if it is reproduced 3 of 6
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JE Job No.:
SOILS
DEVIATING SAMPLES
SURROGATES
DILUTIONS
BLANKS
NOTE
NOTES TO ACCOMPANY ALL SCHEDULES AND REPORTS
Please note we are only MCERTS accredited (UK soils only) for sand, loam and clay and any other matrix is outside our scope of accreditation.
Where Mineral Oil or Fats, Oils and Grease is quoted, this refers to Total Aliphatics C10-C40.
19/7755
WATERS
It is assumed that you have taken representative samples on site and require analysis on a representative subsample. Stones will generally be
included unless we are requested to remove them.
All analysis is reported on a dry weight basis unless stated otherwise. Results are not surrogate corrected. Samples are dried at 35°C ±5°C unless
otherwise stated. Moisture content for CEN Leachate tests are dried at 105°C ±5°C.
Surrogate compounds are added during the preparation process to monitor recovery of analytes. However low recovery in soils is often due to peat,
clay or other organic rich matrices. For waters this can be due to oxidants, surfactants, organic rich sediments or remediation fluids. Acceptable
limits for most organic methods are 70 - 130% and for VOCs are 50 - 150%. When surrogate recoveries are outside the performance criteria but
the associated AQC passes this is assumed to be due to matrix effect. Results are not surrogate corrected.
A dilution suffix indicates a dilution has been performed and the reported result takes this into account. No further calculation is required.
If you have not already done so, please send us a purchase order if this is required by your company.
The calculation of Pyrite content assumes that all oxidisable sulphides present in the sample are pyrite. This may not be the case. The calculation
may be an overesitimate when other sulphides such as Barite (Barium Sulphate) are present.
Where analytes have been found in the blank, the sample will be treated in accordance with our laboratory procedure for dealing with contaminated
blanks.
ISO17025 accreditation applies to surface water and groundwater and usually one other matrix which is analysis specific, any other liquids are
outside our scope of accreditation.
As surface waters require different sample preparation to groundwaters the laboratory must be informed of the water type when submitting samples.
Where appropriate please make sure that our detection limits are suitable for your needs, if they are not, please notify us immediately.
All samples should be submitted to the laboratory in suitable containers with sufficient ice packs to sustain an appropriate temperature for the
requested analysis. The temperature of sample receipt is recorded on the confirmation schedules in order that the client can make an informed
decision as to whether testing should still be undertaken.
Where Mineral Oil or Fats, Oils and Grease is quoted, this refers to Total Aliphatics C10-C40.
Please note we are not a UK Drinking Water Inspectorate (DWI) Approved Laboratory .
REPORTS FROM THE SOUTH AFRICA LABORATORY
Any method number not prefixed with SA has been undertaken in our UK laboratory unless reported as subcontracted.
Where an MCERTS report has been requested, you will be notified within 48 hours of any samples that have been identified as being outside our
MCERTS scope. As validation has been performed on clay, sand and loam, only samples that are predominantly these matrices, or combinations
of them will be within our MCERTS scope. If samples are not one of a combination of the above matrices they will not be marked as MCERTS
accredited.
Negative Neutralization Potential (NP) values are obtained when the volume of NaOH (0.1N) titrated (pH 8.3) is greater than the volume of HCl (1N)
to reduce the pH of the sample to 2.0 - 2.5. Any negative NP values are corrected to 0.
Where a CEN 10:1 ZERO Headspace VOC test has been carried out, a 10:1 ratio of water to wet (as received) soil has been used.
All samples will be discarded one month after the date of reporting, unless we are instructed to the contrary.
% Asbestos in Asbestos Containing Materials (ACMs) is determined by reference to HSG 264 The Survey Guide - Appendix 2 : ACMs in buildings
listed in order of ease of fibre release.
Data is only reported if the laboratory is confident that the data is a true reflection of the samples analysed. Data is only reported as accredited when
all the requirements of our Quality System have been met. In certain circumstances where all the requirements of the Quality System have not been
met, for instance if the associated AQC has failed, the reason is fully investigated and documented. The sample data is then evaluated alongside
the other quality control checks performed during analysis to determine its suitability. Following this evaluation, provided the sample results have not
been effected, the data is reported but accreditation is removed. It is a UKAS requirement for data not reported as accredited to be considered
indicative only, but this does not mean the data is not valid.
Where possible, and if requested, samples will be re-extracted and a revised report issued with accredited results. Please do not hesitate to contact
the laboratory if further details are required of the circumstances which have led to the removal of accreditation.
QF-PM 3.1.9 v34Please include all sections of this report if it is reproduced
All solid results are expressed on a dry weight basis unless stated otherwise. 4 of 6
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JE Job No.:
#
SA
B
DR
M
NA
NAD
ND
NDP
SS
SV
W
+
++
*
AD
CO
LOD/LOR
ME
NFD
BS
LB
N
TB
OC
19/7755
Not applicable
ISO17025 (UKAS Ref No. 4225) accredited - UK.
Dilution required.
ISO17025 (SANAS Ref No.T0729) accredited - South Africa.
MCERTS accredited.
Matrix Effect
No Asbestos Detected.
Limit of Detection (Limit of Reporting) in line with ISO 17025 and MCERTS
No Determination Possible
None Detected (usually refers to VOC and/SVOC TICs).
Samples are dried at 35°C ±5°C
Analysis subcontracted to an Exova Jones Environmental approved laboratory.
AQC failure, accreditation has been removed from this result, if appropriate, see 'Note' on previous page.
Calibrated against a single substance
Indicates analyte found in associated method blank.
ABBREVIATIONS and ACRONYMS USED
Outside Calibration Range
No Fibres Detected
Result outside calibration range, results should be considered as indicative only and are not accredited.
Results expressed on as received basis.
Surrogate recovery outside performance criteria. This may be due to a matrix effect.
AQC Sample
Suspected carry over
Trip Blank Sample
Blank Sample
Client Sample
QF-PM 3.1.9 v34Please include all sections of this report if it is reproduced
All solid results are expressed on a dry weight basis unless stated otherwise. 5 of 6
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JE Job No: 19/7755
Test Method No. Description
Prep Method
No. (if
appropriate)
Description
ISO
17025
(UKAS/S
ANAS)
MCERTS
(UK soils
only)
Analysis done
on As Received
(AR) or Dried
(AD)
Reported on
dry weight
basis
TM37
Modified methods USEPA 160.2, EN872:2005 and SMWW 2540D. Gravimetric
determination of Total Suspended Solids. Sample is filtered through a 1.5um pore size
glass fibre filter and the resulting residue is dried and weighed.
PM0 No preparation is required. Yes
Exova Jones Environmental Method Code Appendix
QF-PM 3.1.10 v14 Please include all sections of this report if it is reproduced 6 of 6
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PROJECT : GW2 New Monitoring Well . Site Name :J&J ,Vistakon, Limerick .
Page 1 of 2
Log of Trial Borehole @ Johnson & Johnson Health Care , Vistakon , LIMERICK
Project ; new GW2
8 / Jan / 19
Description ; Monitor b/h to 18 Mtrs.
Location ;Behind Kerb-line at SISK site compound , before tanker gantry . GW 2. ITM Easting 563,370 ITM Northing 658,279 Elevation: Malin Head 8 Mtrs.
Contact ; T Fogarty . Contractor & site PSCS .087 2935855 . [email protected]
Site Supervisor ; Sean Linehan , SISK Ltd. Prelim Result / Yield ;
Date of Drilling ; 8-9 Jan 2019 Static Water Level :
Weather ; Good , Dry. Chemical Test N
From To mOD Description Construction Notes
GL 0.7 Made ground , backfilled CLAYs
Overburden drilled @ 205 To 12 Mtrs. 12 Mtrs of 168mm steel casing install & removed .
0.7 2.2 Soft dark Brown silty CLAYS with Pieces of timber- tress debris . (adjacent to river(s)= silt bank)
2.2 4.6 Light Grey - Brown consolidated silty CLAYs with boulders . Dry
4.6 5.7 Limestone shelf / boulder
Continue drilling @ 155mm from 11.3 Mtrs to 19.2 Mtrs.
5.7 6.5 Soft grey -brown SILT .
6.5 9.2 Consolidated grey Boulder CLAYS with coarse Limestone Gravels.
9.2 11.5 Dark yellow Clay filled weathered Limestone , Dry
@ 11.5 “Rathkeale” LIMESTONE
11.5 12.3 Weathered LIMESTONE , first water strike @ 11.7 mtrs , Recovers to 2.3 M BGL in 20 mins
9 Mtrs of PVC monitoring pipe & 9Mtrs Of PVC screen
12.3 19.2 Dark Muddy Limestone with shale layers , 3 small water strikes @ 13.1 , 15.5 & 17.4 Mtrs. minimal.
Non – calc gravel pack to 19.2 Mtrs .
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PROJECT : GW2 New Monitoring Well . Site Name :J&J ,Vistakon, Limerick .
Page 2 of 2
Notes;
Monitoring borehole drilled to 19.2 Mtrs via consolidated CLAYs over wthd Limestone bedrock.
9 Mtrs of 55mm I.D PVC casing & 9 Mtrs of Screen installed . Annulus area backfilled with 10-12mm Non – calcareous gravel pack back to 8.7 Mtrs .
0.7 Mtrs of Bentonite pellets added & allowed to hydrate overnight , 8 / Jan.
Annulus area grouted (NPC ; Bentonite (20%)) form 8 Mtrs back to G.L .
168mm standpipe and lockable cap installed . 1.5 Mtr concrete base & Bollards .
End of borehole @ 19.2 Mtrs . 9 / Jan
Well developed for -3--hrs on completion
Estimated Yield @ EOH = Water appearance / time to clear –0.3--- hrs.
Notes / Observations;