HomeMy WebLinkAbout2022 2nd
D&B Engineers and Architects
March 13, 2023
Syed H. Rahman
Regional Solid Materials Engineer
NYSDEC Region 1
SUNY at Stony Brook
50 Circle Road
Stony Brook, NY 11790
Re:Town of Southold Landfill
Post Closure Groundwater Monitoring Program
D&B No. 5535
Dear Mr. Rahman:
On behalf of the Town of Southold, please find enclosed one electronic copy of the following document
for your review:
Post Closure Groundwater Monitoring Program
Second Semiannual Report of 2022
In a
frequency of post-closure groundwater monitoring to semiannually for Part 360 Baseline Parameters. The
SecondSemiannual 2022 results discussed in the enclosed report are generally consistent with previous
sampling events and do not indicate any significant changes or deterioration in groundwater quality that
would warrant a change in the scope of the monitoring program. Therefore, the monitoring reduction
approved by NYSDEC should be continued. The next monitoring round (First Semiannual 2023
groundwater monitoring event) is scheduled to be conducted in the second quarter of 2023 for Part 363
Baseline Parameters.
If you should have any questions, please do not hesitate to contact me at (516)364-9890, Ext.3058.
Very truly yours,
Keith Robins, P.G.
Associate
KRt/cf
Enclosure
cc:
J. Bunchuck (Town of Southold)
F. DeVita (D&B)
5535\\KR030823SR_Ltr
SECOND SEMI-ANNUAL GROUNDWATER MONITORING REPORT OF 2022
TOWN OF SOUTHOLD LANDFILL
POST CLOSURE GROUNDWATER MONITORING PROGRAM
Prepared for:
TOWN OF SOUTHOLD
SOLID WASTE MANAGEMENT DISTRICT
CUTCHOGUE, SUFFOLK COUNTY, NEW YORK
Prepared by:
D&B ENGINEERS AND ARCHITECTS
WOODBURY, NEW YORK
MARCH 2023
5535\\CC03082301_1st-Semi-Annual-GMRpt
SECOND SEMI-ANNUAL GROUNDWATER MONITORING REPORT OF 2022
TOWN OF SOUTHOLD LANDFILL
POST CLOSURE GROUNDWATER MONITORING PROGRAM
TABLE OF CONTENTS
Section Title Page
1.0 INTRODUCTION....................................................................................................... 1-1
2.0 SAMPLING PROCEDURES AND ANALYSES .................................................... 2-1
2.1 Groundwater Level Measurement Procedures .................................................. 2-1
2.2 Groundwater Sampling Procedures .................................................................. 2-1
2.3 Sample Analyses ............................................................................................... 2-3
3.0 GROUNDWATER LEVEL MEASUREMENTS .................................................... 3-1
4.0 DISCUSSION OF RESULTS .................................................................................... 4-1
4.1 Data Validation ................................................................................................. 4-1
4.2 Groundwater Results ......................................................................................... 4-2
4.2.1 Field Parameters ................................................................................... 4-2
4.2.2 Volatile Organic Compounds ............................................................... 4-4
4.2.3 Inorganic Parameters (Metals) .............................................................. 4-4
4.2.4 Leachate Indicators ............................................................................... 4-5
5.0 CONCLUSIONS AND RECOMMENDATIONS ................................................... 5-1
List of Appendices
Groundwater Analytical Results ...................................................................................A
Groundwater Sampling Logs ........................................................................................B
Chain of Custody Forms ...............................................................................................C
Data Validation Check List ..........................................................................................D
Historical Graphs ..........................................................................................................E
5535\\CC03082301_1st-Semi-Annual-GMRpt
i
TABLE OF CONTENTS (continued)
List of Figures
1-1 Site Location Map .............................................................................................1-2
2-1 Groundwater Monitoring Well Location Map ..................................................2-2
List of Tables
3-1 Groundwater Level Data December 28, 2022 ...............................................3-2
5535\\CC03082301_1st-Semi-Annual-GMRpt
ii
1.0 INTRODUCTION
The Town of Southold has retained D&B Engineers and Architects (D&B) to perform
post-closure groundwater monitoring and reporting for the closed and capped municipal solid
waste (MSW) landfill in Cutchogue, New York (i.e., the Site). The location of the Site is shown
in Figure 1-1. This report documents the results of the Semi-annual groundwater monitoring
event conducted on December 28 and 29, 2022, and describes the work performed and the results
obtained. The groundwater monitoring wells were sampled in strict conformance with the
Quality Assurance/Quality Control (QA/QC) Plan, which is part of the Post Closure Monitoring
and Maintenance Manual, dated August 2003.
In the past, groundwater sampling was performed quarterly, with three rounds analyzed
for New York Codes, Rules and Regulations (NYCRR) Part 360 Routine Parameters and one
round analyzed for 6 NYCRR Part 360 Baseline Parameters on a rotating basis. In the Spring of
2015, on behalf of the Town of Southold, D&B proposed modifications to the New York State
Department of Environmental Conservation (NYSDEC) pertaining to the sampling frequency
and analyses for the Post-Closure Groundwater Monitoring Program for the Site. The request for
these modifications was approved by the NYSDEC on July 2, 2015. Modifications to the Post-
Closure Groundwater Monitoring Program included:
A reduction in sampling frequency from quarterly to semi-annually for all well
clusters (MW-1, MW-3, MW-4, MW-5, MW-6 and MW-8); and
Groundwater analysis for 6 NYCRR Part 360 Baseline Parameters for both Semi-
annual sampling events.
This report is organized into the following sections: Section 2.0 (Sampling Procedures
and Analyses) describes the water level measurements and groundwater sampling procedures, as
well as the groundwater analyses; Section 3.0 (Groundwater Level Measurements) summarizes
the groundwater level measurements and groundwater elevations; Section 4.0 (Discussion of
Results) summarizes the key findings from this groundwater monitoring event, including
5535\\CC03082301_1st-Semi-Annual-GMRpt
1-1
Long Island
Sound
Southold
48
25
Great Peconic
Bay
SOUTHOLD LANDFILL
CUTCHOGUE, NEW YORK
SITE LOCATION MAP
Figure 1-1
5535-A01 -Site Location Map.indd (07/06/21 - 11:01 AM)
data validation and comparison of the laboratory results to NYSDEC Class GA Groundwater
Standards and Guidance Values; and Section 5.0 (Conclusions and Recommendations) provides
conclusions and recommendations based on the second semi-annual 2022 results.
5535\\CC03082301_1st-Semi-Annual-GMRpt
1-3
2.0 SAMPLING PROCEDURES AND ANALYSES
monitoring wells (MW-1S, MW-1D, MW-3S, MW-3D, MW-4S, MW-4D, MW-5S, MW-5D,
MW-6S, MW-6D, MW-8S and MW-8D) on December 28, 2022, as part of this Semi-annual
2022 groundwater monitoring event. A site plan showing the locations of the monitoring wells is
provided in Figure 2-1. The following sections provide a brief discussion of the procedures used
during groundwater level measurements, groundwater sampling and sample analysis.
2.1 Groundwater Level Measurement Procedures
Water level measurements were obtained from the 12 monitoring wells to determine the
volume of standing water in the well for purposes of purging, as well as for determination of
groundwater elevations and flow direction. Groundwater level measurements were obtained from
a surveyed measuring point on each well utilizing a decontaminated electronic water level
indicator to an accuracy of 0.01 foot. A discussion regarding groundwater level measurements
and groundwater flow direction is provided in Section 3.0.
2.2 Groundwater Sampling Procedures
Sampling procedures for the collection of the groundwater samples were implemented in
accordance with the protocol described in the Quality Assurance/Quality Control (QA/QC) Plan,
which is part of the Post Closure Monitoring and Maintenance Manual, dated August 2003. Field
decontamination was performed between sampling locations for non-disposable equipment.
Prior to collecting groundwater samples, the 12 monitoring wells were purged to remove
the standing water in each well. Well purging was accomplished by first measuring the static
water level in the well and then calculating the volume of standing water. A decontaminated
submersible pump and dedicated low density polyethylene tubing was used to purge the water
from the well. Decontamination of the submersible pump used for well purging was performed
in accordance with the procedure described in the QA/QC Plan.
5535\\CC03082301_1st-Semi-Annual-GMRpt
2-1
150
3000300
SCALE IN FEET
*NOTE: WELL SYMBOLS NOT TO SCALE
SCALE: 1"=300'
F:\\5535\\dwg\\5535-FIG-2-1.dwg, Figure 2, 7/6/2021 11:55:33 AM, rferrell
During the purging process, groundwater was monitored and recorded for the following
field parameters: pH, temperature, specific conductance, oxidation reduction potential (ORP),
dissolved oxygen and turbidity. When the values of the field parameters stabilized to within 10%
based on the last two readings, the turbidity of the groundwater was less than 50 Nephelometric
Turbidity Units (NTUs), and at least three well volumes had been removed, well purging was
considered complete.
In accordance with the QA/QC Plan, groundwater samples were collected using new,
dedicated, disposable polyethylene bailers and polypropylene rope. Samples for VOC analysis
were collected first, followed by inorganic parameters and leachate indicators. Each sample was
labeled with the well number, time, and date, stored in an ice-filled cooler with the chain of
custody forms, and delivered to the laboratory (Pace Analytical Services, LLC).
Appropriate quality assurance/quality control (QA/QC) samples, which included matrix
spike and matrix spike duplicate (MS/MSD) sets and trip blanks were collected in accordance
with the QA/QC Plan.
Tables summarizing the analytical results are provided in Appendix A and are discussed
in Section 4.0. Groundwater sampling logs for this Semi-annual 2022 groundwater monitoring
event are provided in Appendix B, and the chain of custody forms are provided in Appendix C.
2.3 Sample Analyses
Groundwater samples collected during this Semi-annual 2022 groundwater monitoring
event from the 12 monitoring wells were analyzed for 6 NYCRR Part 363 Baseline Parameters.
Laboratory analyses were performed by Pace Analytical Services, LLC, located in Melville, New
York. This laboratory is approved under the New York State Department of Health
Environmental Laboratory Approval Program (ELAP) for the analyses performed.
5535\\CC03082301_1st-Semi-Annual-GMRpt
2-3
3.0 GROUNDWATER LEVEL MEASUREMENTS
Groundwater level measurements were collected by D&B on December 28, 2022, from
the 12 groundwater monitoring wells as part of this Semi-annual 2022 groundwater monitoring
event. The groundwater level measurements from the monitoring wells are summarized in
Table 3-1.
As shown in Table 3-1, water table elevationls at the Site
ranged from 5.48 feet above mean sea level (MSL) in well MW-1S, located on the south end of
the Site, to 3.68 feet above MSL in well MW-8S, located on the west side of the Site. Based
upon the December 28, 2022, groundwater level measurements and calculated water table
elevations, groundwater flow direction was determined to be in a north-northwesterly direction.
Therefore, well cluster MW-1 is located upgradient of the Site, and the other wells are located
along the downgradient boundary of the Site.
Potentiometric surface elevations in the deep (ells at the Site are generally
consistent with the shallow well water table elevations, except for well MW-8D, and indicate no
substantial vertical hydraulic gradient throughout the landfill site. An upward vertical hydraulic
gradient is indicated at well cluster MW-8, due to the lower water table elevation.
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3-1
Table 3-1
SOUTHOLD LANDFILL
SECOND SEMI-ANNUAL 2022 GROUNDWATER MONITORING EVENT
MONITORING WELL GROUNDWATER ELEVATION MEASUREMENTS
DECEMBER 28, 2022
Measuring Point Depth to Water from
Elevation Measuring Point Groundwater Elevation
Well Designation (feet above msl) (feet) (feet above msl)
39.35
5.48
MW-1S 44.83
MW-1D 39.29
5.59
44.88
MW-3S 44.65
4.85
49.50
MW-3D 44.35
4.84
49.19
MW-4S 58.45
4.58
63.03
MW-4D 58.35
4.57
62.92
MW-5S 63.58
4.56
68.14
MW-5D 63.07
4.57
67.64
MW-6S 50.90
4.87
55.77
50.87
4.84
MW-6D 55.71
50.48
3.68
MW-8S 54.16
49.27
6.02
MW-8D 55.29
5535\\CC03082301_1st-Semi-Annual-GMRpt
3-2
4.0 DISCUSSION OF RESULTS
4.1 Data Validation
Twelve groundwater samples, one matrix spike/matrix spike duplicate (MS/MSD), and
two trip blanks were collected as part of the December 2022 Sampling Event performed at Town
of Southold Landfill. All samples were analyzed for the 6 NYCRR Part 363 Baseline Parameters,
including volatile organic compounds (VOCs), inorganic parameters (metals) and leachate
indicators. Sample analysis was performed in accordance with SW-846 methods. The laboratory
analyses were performed by Pace Analytical Services, LLC, Melville, New York; phenolic was
subcontracted to Microbac, Marietta, OH; and reported in data package 70241540.
The data package (70241540) submitted by the analytical laboratory was validated in
accordance with NYSDEC quality assurance/quality control (QA/QC) requirements, the contract
requirements and Part 363. All samples were analyzed within the method specified holding times
except where noted below. The following requirements were outside limits and required
qualification of the data:
The %R (percent recovery) was above the QC limits for chlorobenzene; it was
detected in the samples MW-3D, MW-4D, MW-5D, MW-8S, and MW-8D and were
qualified as estimated (J).
Potassium in the preparation blank was qualified as non-detect (UB) in samples MW-
5S, MW-6D, and MW-6S.
The %R was below the QC limit in the spike and post digestive spike for silver.
Silver was qualified as an estimated limit (UJ) or estimated bias low (JL) in all
samples.
The holding times were exceeded, hexavalent chromium in and was qualified as an
estimated detection limit (UJ) in samples MW-1D, MW-3S, MW-4D, MW-8D, and
MW-8S.
The RPD was above the QC limit in the laboratory duplicate for total dissolved solids
associated with samples MW-8S, MW-8D, MW-4D, MW-4S, MW-5D, MW-5S,
MW-6D, MW-6S, and MW-3D and it was qualified as estimated (J).
5535\\CC03082301_1st-Semi-Annual-GMRpt
4-1
The %Rs were below the QC limits in the MS for nitrate associated with samples
MW-8D, MW-4D, MW-4S, MW-5S, MW-5D, MW-6D, MW-6S, and MW-3D and
ammonia associated with samples MW-6D, MW-6S, and MW-3D. They were
qualified as estimated (J/UJ) in all samples.
The %R was above the QC limit in the MS for nitrate and was qualified as estimated
(J) in samples MW-1D and MW-1S.
No other issues were identified with the sample results and all results are deemed valid
and usable for environmental assessment purposes as qualified above. Data Validation checklists
completed for the December 2022 Sampling Event are provided in Appendix D.
4.2 Groundwater Results
The laboratory results for this Semi-annual 2022 groundwater monitoring event are
summarized on Table A-1 through Table A-3 and presented in Appendix A. These results are
compared to the New York State Department of Environmental Conservation Ambient Water
Quality Standards and Guidance Values for Class GA groundwater (herein referred to as the
Class GA groundwater standards and guidance values). Table A-1 provides the VOC results,
Table A-2 the inorganic parameters (metals) results, and Table A-3 the leachate indicator
results. Graphs illustrating historical total volatile organic compounds (TVOC's), select inorganic
parameters and select leachate indicators for the monitoring wells are presented in Appendix E.
Field parameters measured during the groundwater purging process are presented on the
groundwater sampling logs in Appendix B. A discussion of the field parameters and each
analytical parameter group is provided below.
4.2.1 Field Parameters
A review of the field parameters collected immediately prior to collection of the
groundwater samples, provided on the groundwater sampling logs in Appendix B, indicates the
following key findings:
5535\\CC03082301_1st-Semi-Annual-GMRpt
4-2
Conductivity values were highest in deep wells located downgradient of the Site,
including wells MW-3D, MW-4D, MW-5D, and MW-8D. The higher conductivity
values appear to be Site-related. There is no Class GA standard or guidance value for
conductivity.
Groundwater temperatures were approximately 1 to 2 degrees Celsius higher in many
of the downgradient wells, relative to the upgradient wells. The highest temperatures
were recorded in well clusters MW-3, MW-4 and MW-8. There is no Class GA
standard or guidance value for temperature.
Groundwater pH was lower than the minimum Class GA groundwater standard of 6.5
in upgradient well MW-1S and in four (4) downgradient wells (MW-3S, MW-5S,
MW-6S and MW-6D). The results are consistent with the naturally low pH of Long
Island groundwater. In general, groundwater pH was higher in each of the deep well
clusters.
Dissolved Oxygen (DO) concentrations were lower in the downgradient wells relative
to upgradient wells and were generally lower in the deep wells relative to the shallow
wells. DO concentrations in the downgradient wells ranged between 0.39 mg/l at deep
well MW-4D to a maximum of 5.10 mg/l at shallow well MW-5S. It should be noted
that the DO concentrations in upgradient wells MW-1S and MW-1D were 9.38 mg/l
and 3.76 mg/l, respectively. There is no Class GA standard or guidance value for DO.
The Oxidation-Reduction Potential (ORP) of groundwater was positive in upgradient
well cluster MW-1 and at downgradient well clusters MW-4, MW-5 and MW-6,
indicating oxidizing conditions. The ORP of groundwater was negative in well
clusters MW-3 and MW-8, indicating reducing conditions. There is no Class GA
standard or guidance value for ORP.
In general, the groundwater samples collected from the 12 Site monitoring wells were
observed to be clear and did not have a noticeable odor, with exception of MW-4D
and MW-8S, which had a yellowish tint and a notable leachate odor.
Light non-aqueous phase liquid (LNAPL) or dense non-aqueous phase liquid
(DNAPL) was not noted in any of the groundwater samples collected from the 12 Site
monitoring wells.
Overall, the field parameter results obtained during this Semi-annual 2022 groundwater
monitoring event are fairly consistent with previous sampling events and are indicative of limited
leachate impacts, typical of a closed municipal solid waste (MSW) landfill. The leachate-related
impacts are relatively minor in magnitude and limited to higher conductivity and temperature
and lower DO and ORP in certain downgradient wells.
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4-3
4.2.2 Volatile Organic Compounds
Review of the VOC results provided on Table A-1 in Appendix A indicates the
following key findings:
VOCs were not detected above Class GA groundwater standards in upgradient well
cluster MW-1.
Nine out of the ten downgradient monitoring wells did not exhibit any VOC
concentrations above their respective Class GA groundwater standards.
Downgradient well (MW-4D) exhibited VOC concentrations of 1,2-dichloroethane
(2.4 ug/l) and 1,2-dichloropropane (5.8 ug/l), which exceeded their respective Class
GA groundwater standards of 0.6 ug/l and 1 ug/l, respectively.
In general, the VOC results for this Semi-annual 2022 groundwater monitoring event are
consistent with previous sampling events. Based on these results, the Site is not a significant
source of VOC contaminants in groundwater.
4.2.3 Inorganic Parameters (Metals)
Review of the inorganic parameter (metals) results provided on Table A-2 in
Appendix A indicates the following key findings:
Iron, magnesium, manganese, sodium and thallium were detected above their
respective Class GA groundwater standards/guidance values in one or more wells, as
follows:
- Iron was detected above the Class GA guidance value of 300 ug/l in downgradient
wells (MW-3S, MW-3D, MW-4D, MW-8S and MW-8D). Iron concentrations in
these wells ranged from 654 ug/l in deep well MW-4D to a maximum of 94,100
ug/l in shallow well MW-3S.
- Magnesium was detected above the Class GA guidance value of 35,000 ug/l in
deep downgradient well MW-4D, at a concentration of 49,600 ug/l. At each well
cluster, higher magnesium concentrations were detected in the deep well.
- Manganese was detected above the Class GA groundwater standard of 300 ug/l in
all downgradient wells, with the exception of MW-5S. Manganese concentrations
5535\\CC03082301_1st-Semi-Annual-GMRpt
4-4
in the wells which exceeded the groundwater standard, ranged from 315 ug/l in
shallow well MW-8S to a maximum of 5,000 ug/l in deep well MW-5D.
- Sodium was detected above the Class GA groundwater standard of 20,000 ug/l in
five (5) downgradient wells (MW-3S, MW-3D, MW-4D, MW-5D and MW-8D).
Sodium concentrations which exceeded the groundwater standard in the
downgradient wells ranged from 30,800 ug/l in shallow well MW-3S to a
maximum of 154,000 ug/l in deep well MW-4D. At each downgradient well
cluster, higher sodium concentrations were detected in the deep well, which
suggests that the detected sodium concentrations may be partly associated with
naturally saline groundwater conditions at depth.
- Thallium was detected above the Class GA guidance value of 0.5 ug/l in
downgradient shallow well MW-3S at a concentration of 5.9 ug/l.
In general, the inorganic parameter results for this Semi-annual 2022 groundwater
monitoring event are fairly consistent with previous sampling events and are indicative of limited
leachate impacts, typical of a closed MSW landfill. Groundwater in the North Fork of Long
Island is also naturally saline at depth, which may contribute to the higher concentrations of
some inorganic parameters observed in the deep wells.
4.2.4 Leachate Indicators
Review of the leachate indicator results provided on Table A-3 in Appendix A indicates
the following key findings:
Ammonia, color, nitrate, total dissolved solids, and total phenols were detected above
their respective Class GA groundwater standards in one or more wells, as follows:
- Ammonia was detected above the Class GA groundwater standard of 2 mg/l in
five (5) downgradient monitoring wells (MW-3D, MW-4D, MW-5D, MW-8S and
MW-8D). Ammonia concentrations in these wells ranged from 7.3 mg/l in deep
well MW-8D to a maximum of 33.9 mg/l in deep well MW-5D.
- Color was detected above the Class GA groundwater standard of 15 APHA in
downgradient wells (MW-3S, MW-3D, MW-4D, MW-5D, MW-6S, MW-8S and
MW-8D). Color ranged from 23 APHA in deep wells MW-4D and MW-5D to a
maximum of 230 APHA in deep well MW-3D.
- Nitrate was detected above the Class GA groundwater standard of 10 mg/l in
downgradient well MW-4S, at a concentration of 22.4 mg/l.
5535\\CC03082301_1st-Semi-Annual-GMRpt
4-5
- Total dissolved solids were detected above the Class GA groundwater standard of
500 mg/l in downgradient deep wells MW-4S and MW-4D, at concentrations of
504 mg/l and 1,200 mg/l, respectively.
- Total phenols were detected above the Class GA groundwater standard of 0.001
mg/l in five (5) downgradient wells (MW-3S, MW-5D, MW-6S, MW-8S and
MW-8D). Total phenols ranged from 0.0031 mg/l in deep well MW-5D to a
maximum of 0.0089 mg/l at shallow well MW-3S.
In general, the leachate indicator results for this Semi-annual 2022 groundwater
monitoring event are consistent with previous sampling events and are indicative of limited
leachate impacts, typical of a closed MSW landfill.
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5.0 CONCLUSIONS AND RECOMMENDATIONS
Based on the results of this Semi-annual 2022 groundwater monitoring event, D&B
concludes the following:
Water level elevations, horizontal and vertical hydraulic gradients, and groundwater
flow directions are fairly consistent with previous results and local/regional
hydrogeologic conditions.
In general, groundwater quality is fairly consistent with previous sample results and
are indicative of limited downgradient leachate impacts.
A portion of the elevated metal concentrations detected in downgradient deep wells
may be related, in part, to naturally saline groundwater conditions at depth.
The results discussed in this report are generally consistent with previous sampling events
and do not indicate any significant changes or deterioration in groundwater quality that would
warrant a change in the scope of the monitoring program. Therefore, it is recommended that
Semi-annual groundwater monitoring continue consistent with the NYSDEC approved petition.
The next monitoring round (First Semi-annual 2023 groundwater monitoring event) is scheduled
to be conducted in May of 2023 for Part 363 Baseline Parameters.
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5-1
APPENDIX A
GROUNDWATER ANALYTICAL RESULTS
5535\\CC03082301_1st-Semi-Annual-GMRpt
Table A-1
Page 1 of 3
Town of Southold Landfill
Groundwater Monitoring Program
Monitoring Well Sample Results
Volatile Organic Compounds
Sample ID MW-1SMW-1DMW-3SMW-3D
Units in ug/lSample_date 12/29/2212/29/2212/29/2212/28/22
NYSDEC CLASS GA
GROUNDWATER
ST/GV
COMPOUNDS
1,1,1,2-Tetrachloroethane 5 ST1U1U1U1U
1,1,1-Trichloroethane 5 ST1U1U1U1U
1,1,2,2-Tetrachloroethane 5 ST1U1U1U1U
1,1,2-Trichloroethane 1 ST1U1U1U1U
1,1-Dichloroethane 5 ST1U1U1U1U
1,1-Dichloroethene 5 ST1U1U1U1U
1,2,3-Trichloropropane 0.04 ST1U1U1U1U
1,2-Dibromo-3-Chloropropane 0.04 ST1U1U1U1U
1,2-Dibromoethane (Ethylene Dibromide)0.0006 ST
1U1U1U1U
1,2-Dichlorobenzene 3 ST++1U1U1U1U
1,2-Dichloroethane 0.6 ST1U1U1U1U
1,2-Dichloropropane 1 ST1U1U1U1U
1,4-Dichlorobenzene 3 ST++1U1U1U1U
2-Butanone (MEK)50 GV5U5U5U5U
2-Hexanone 50 GV5U5U5U5U
4-Methyl-2-Pentanone--5U5U5U5U
Acetone 50 GV5U5U5U5U
Acrylonitrile 5 ST1U1U1U1U
Benzene 1 ST1U1U1U1U
Bromochloromethane 5 ST1U1U1U1U
Bromodichloromethane 50 GV1U1U1U1U
Bromoform 50 GV1U1U1U1U
Bromomethane 5 ST1U1U1U1U
Carbon Disulfide 60 GV1U1U1U1U
Carbon Tetrachloride 5 ST1U1U1U1U
Chlorobenzene 5 ST1U1U1U1.1J
Chloroethane 5 ST1U1U1U1U
Chloroform 7 ST1U1U1U1U
Chloromethane 5 ST1U1U1U1U
Cis-1,2-Dichloroethylene 5 ST1U1U1U1U
Cis-1,3-Dichloropropene 0.4 ST1U1U1U1U
Dibromochloromethane 50 GV1U1U1U1U
Dibromomethane 5 ST1U1U1U1U
Ethylbenzene 5 ST1U1U1U1U
Iodomethane (Methyl Iodide)5 ST4U4U4U4U
m,p-Xylenes 5 ST+2U2U2U2U
Methylene Chloride 5 ST1U1U1U1U
o-Xylene 5 ST+1U1U1U1U
Styrene 5 ST1U1U1U1U
Tetrachloroethylene(PCE)5 ST1U1U1U1U
Toluene 5 ST1U1U1U1U
Trans-1,2-Dichloroethene 5 ST1U1U1U1U
Trans-1,3-Dichloropropene 0.4 ST1U1U1U1U
Trans-1,4-Dichloro-2-Butene 5 ST1U1U1U1U
Trichloroethylene (TCE)5 ST1U1U1U1U
Trichlorofluoromethane 5 ST1U1U1U1U
Vinyl Acetate---1U1U1U1U
Vinyl Chloride 2 ST1U1U1U1U
Total Volatile Organic Compounds---0001.1
+Applies to each isomer individuallyug/l Micrograms per liter
++ Applies to sum of isomerGV Guidance Value
UCompound was analyzed for but not detectedST Standard
--No ST or GV or not analyzed
Exceeds Class GA Standard/Guidance Value
J:\\_HazWaste\\5535 (Southold GW and LFG Monitoring)\\Groundwater\\2nd Semiannual Report 2022\\December_2022
Table A-1
Page 2 of 3
Town of Southold Landfill
Groundwater Monitoring Program
Monitoring Well Sample Results
Volatile Organic Compounds
Sample ID MW-4SMW-4DMW-5SMW-5D
Units in ug/lSample_date 12/28/2212/28/2212/28/2212/28/22
NYSDEC CLASS GA
GROUNDWATER
ST/GV
COMPOUNDS
1,1,1,2-Tetrachloroethane 5 ST1U1U1U1U
1,1,1-Trichloroethane 5 ST1U1U1U1U
1,1,2,2-Tetrachloroethane 5 ST1U1U1U1U
1,1,2-Trichloroethane 1 ST1U1U1U1U
1,1-Dichloroethane 5 ST1U1U1U1U
1,1-Dichloroethene 5 ST1U1U1U1U
1,2,3-Trichloropropane 0.04 ST1U1U1U1U
1,2-Dibromo-3-Chloropropane 0.04 ST1U1U1U1U
1,2-Dibromoethane (Ethylene Dibromide)0.0006 ST
1U1U1U1U
1,2-Dichlorobenzene 3 ST++1U1U1U1U
1,2-Dichloroethane 0.6 ST1U 2.4 1U1U
1,2-Dichloropropane 1 ST1U 5.8 1U1U
1,4-Dichlorobenzene 3 ST++1U1U1U1U
2-Butanone (MEK)50 GV5U5U5U5U
2-Hexanone 50 GV5U5U5U5U
4-Methyl-2-Pentanone--5U5U5U5U
Acetone 50 GV5U5U5U5U
Acrylonitrile 5 ST1U1U1U1U
Benzene 1 ST1U1U1U1U
Bromochloromethane 5 ST1U1U1U1U
Bromodichloromethane 50 GV1U1U1U1U
Bromoform 50 GV1U1U1U1U
Bromomethane 5 ST1U1U1U1U
Carbon Disulfide 60 GV1U1U1U1U
Carbon Tetrachloride 5 ST1U1U1U1U
Chlorobenzene 5 ST1U2.4J1U3.3J
Chloroethane 5 ST1U1U1U1U
Chloroform 7 ST1U1U1U1U
Chloromethane 5 ST1U1U1U1U
Cis-1,2-Dichloroethylene 5 ST1U1.41U1U
Cis-1,3-Dichloropropene 0.4 ST1U1U1U1U
Dibromochloromethane 50 GV1U1U1U1U
Dibromomethane 5 ST1U1U1U1U
Ethylbenzene 5 ST1U1U1U1U
Iodomethane (Methyl Iodide)5 ST4U4U4U4U
m,p-Xylenes 5 ST+2U2U2U2U
Methylene Chloride 5 ST1U1U1U1U
o-Xylene 5 ST+1U1U1U1U
Styrene 5 ST1U1U1U1U
Tetrachloroethylene(PCE)5 ST1U1U1U1U
Toluene 5 ST1U1U1U1U
Trans-1,2-Dichloroethene 5 ST1U1U1U1U
Trans-1,3-Dichloropropene 0.4 ST1U1U1U1U
Trans-1,4-Dichloro-2-Butene 5 ST1U1U1U1U
Trichloroethylene (TCE)5 ST1U1U1U1U
Trichlorofluoromethane 5 ST1U1U1U1U
Vinyl Acetate---1U1U1U1U
2 ST
Vinyl Chloride 1U1U1U1U
Total Volatile Organic Compounds---01203.3
+Applies to each isomer individuallyug/l Micrograms per liter
++ Applies to sum of isomerGV Guidance Value
UCompound was analyzed for but not detectedST Standard
--No ST or GV or not analyzed
Exceeds Class GA Standard/Guidance Value
J:\\_HazWaste\\5535 (Southold GW and LFG Monitoring)\\Groundwater\\2nd Semiannual Report 2022\\December_2022
Table A-1
Page 3 of 3
Town of Southold Landfill
Groundwater Monitoring Program
Monitoring Well Sample Results
Volatile Organic Compounds
Sample ID MW-6SMW-6DMW-8SMW-8D
Units in ug/lSample_date 12/28/2212/28/2212/28/2212/28/22
NYSDEC CLASS GA
GROUNDWATER
ST/GV
COMPOUNDS
1,1,1,2-Tetrachloroethane 5 ST1U1U1U1U
1,1,1-Trichloroethane 5 ST1U1U1U1U
1,1,2,2-Tetrachloroethane 5 ST1U1U1U1U
1,1,2-Trichloroethane 1 ST1U1U1U1U
1,1-Dichloroethane 5 ST1U1U1U1U
1,1-Dichloroethene 5 ST1U1U1U1U
1,2,3-Trichloropropane 0.04 ST1U1U1U1U
1,2-Dibromo-3-Chloropropane 0.04 ST1U1U1U1U
1,2-Dibromoethane (Ethylene Dibromide)0.0006 ST
1U1U1U1U
1,2-Dichlorobenzene 3 ST++1U1U1U1U
1,2-Dichloroethane 0.6 ST1U1U1U1U
1,2-Dichloropropane 1 ST1U1U1U1U
1,4-Dichlorobenzene 3 ST++1U1U1U1U
2-Butanone (MEK)50 GV5U5U5U5U
2-Hexanone 50 GV5U5U5U5U
4-Methyl-2-Pentanone--5U5U5U5U
Acetone 50 GV5U5U5U5U
Acrylonitrile 5 ST1U1U1U1U
Benzene 1 ST1U1U1U1U
Bromochloromethane 5 ST1U1U1U1U
Bromodichloromethane 50 GV1U1U1U1U
Bromoform 50 GV1U1U1U1U
Bromomethane 5 ST1U1U1U1U
Carbon Disulfide 60 GV1U1U1U1U
Carbon Tetrachloride 5 ST1U1U1U1U
Chlorobenzene 5 ST1U1U4.3J1.4J
Chloroethane 5 ST1U1U1U1U
Chloroform 7 ST1U1U1U1U
Chloromethane 5 ST1U1U1U1U
Cis-1,2-Dichloroethylene 5 ST1U1U1U1U
Cis-1,3-Dichloropropene 0.4 ST1U1U1U1U
Dibromochloromethane 50 GV1U1U1U1U
Dibromomethane 5 ST1U1U1U1U
Ethylbenzene 5 ST1U1U1U1U
Iodomethane (Methyl Iodide)5 ST4U4U4U4U
m,p-Xylenes 5 ST+2U2U2U2U
Methylene Chloride 5 ST1U1U1U1U
o-Xylene 5 ST+1U1U1U1U
Styrene 5 ST1U1U1U1U
Tetrachloroethylene(PCE)5 ST1U1U1U1U
Toluene 5 ST1U1U1U1U
Trans-1,2-Dichloroethene 5 ST1U1U1U1U
Trans-1,3-Dichloropropene 0.4 ST1U1U1U1U
Trans-1,4-Dichloro-2-Butene 5 ST1U1U1U1U
Trichloroethylene (TCE)5 ST1U1U1U1U
Trichlorofluoromethane 5 ST1U1U1U1U
Vinyl Acetate---1U1U1U1U
2 ST
Vinyl Chloride 1U1U1U1U
Total Volatile Organic Compounds---004.31.4
+Applies to each isomer individuallyug/l Micrograms per liter
++ Applies to sum of isomerGV Guidance Value
UCompound was analyzed for but not detectedST Standard
--No ST or GV or not analyzed
Exceeds Class GA Standard/Guidance Value
J:\\_HazWaste\\5535 (Southold GW and LFG Monitoring)\\Groundwater\\2nd Semiannual Report 2022\\December_2022
Table A-2
Page 1 of 2
Town of Southold Landfill
Groundwater Monitoring Program
Monitoring Well Sample Results
Inorganic Parameters
Sample ID MW-1SMW-1DMW-3SMW-3DMW-4SMW-4D
Sample_date 12/29/2212/29/2212/29/2212/28/2212/28/2212/28/22
Units in ug/l
NYSDEC CLASS GA
GROUNDWATER
ST/GV
METALS
--200U200U200U200U200U200U
Aluminum
3 ST60U60U60U60U60U60U
Antimony
25 ST10U10U10U10U10U10U
Arsenic
1000 ST45.4J31.3J170J203143J157J
Barium
3 GV5U5U5U5U5U5U
Beryllium
1000 ST20.5J17.2J90182164493
Boron
5 ST2.5U2.5U2.5U2.5U2.5U2.5U
Cadmium
--4670250002160025100100000123000
Calcium
50 ST20U20UJ20UJ20U20U20UJ
Chromium, Hexavalent
50 ST11.810U10U10U10U10U
Chromium, Total
--50U50U21.1J25.1J50U9J
Cobalt
200 ST25U25U10J4.4J5.4J10.3J
Copper
200 ST10U10U10U10U10U10U
Cyanide
300 ST #31J100U100U
Iron 9410036100654
25 ST5U5U5U5U5U5U
Lead
35000 GV329011200111001400016300
Magnesium 49600
300 ST #11.710U
Manganese 241014309183500
0.7 ST0.2U0.2U0.2U0.2U0.2U0.2U
Mercury
100 ST39.5J14.8J22.9J27.5J19.7J40.6
Nickel
--3090J1870J11400268002460041800
Potassium
10 ST10U10U10U10U10U10U
Selenium
50 ST10UJ10UJ1.3JL10UJ10UJ10UJ
Silver
20000 ST12500171009340
Sodium 3080042100154000
0.5 GV10U10U10U10U10U
Thallium 5.9J
--50U50U50U50U50U50U
Vanadium
2000 GV20U20U20U20U20U20U
Zinc
ug/lMicrograms per liter
UCompound was analyzed for but not detected
GV Guidance Value
ST Standard
#Standard for total iron and manganese is 500 ug/l
--No ST or GV
J:Estimated value or detection limit
UB:Non-detect based on blank results
JL:Estimated bias low
Exceeds Class GA Standard/Guidance Value
J:\\_HazWaste\\5535 (Southold GW and LFG Monitoring)\\Groundwater\\2nd Semiannual Report 2022\\December_2022
Table A-2
Page 2 of 2
Town of Southold Landfill
Groundwater Monitoring Program
Monitoring Well Sample Results
Inorganic Parameters
Sample ID MW-5SMW-5DMW-6SMW-6DMW-8SMW-8D
Sample_date 12/28/2212/28/2212/28/2212/28/2212/28/2212/28/22
Units in ug/l
NYSDEC CLASS GA
GROUNDWATER
ST/GV
METALS
--200U200U124J200U200U200U
Aluminum
3 ST60U60U60U60U60U60U
Antimony
25 ST10U10U10U10U6.9J10U
Arsenic
1000 ST
37.4J84.4J69.1J22.5J20054.9J
Barium
3 GV
Beryllium 5U5U5U5U5U5U
1000 ST
Boron 18.4J32330.1J65.4139130
5 ST
Cadmium 2.5U2.5U0.35J2.5U2.5U2.5U
--
Calcium 67502570017700379005430045600
50 ST
Chromium, Hexavalent 20U20U20U20U20UJ20UJ
50 ST
Chromium, Total 10U10U10U10U10U10U
--
Cobalt 50U13.7J7.2J50U50U50U
200 ST
Copper 25U8J17.7J25U4.3J25U
200 ST
Cyanide 10U10U10U10U10U8.1J
300 ST #
Iron 100U 82.4J75.7J 20.7J 4090013100
25 ST
Lead 5U5U5U5U5U5U
35000 GV
Magnesium 3980129005030125001600021400
300 ST #
Manganese 26.6 500019108503151990
0.7 ST
Mercury 0.2U0.2U0.2U0.2U0.2U0.2U
100 ST
Nickel 11J30.9J29.3J33.3J16.6J20.4J
--
Potassium 2420UB459003320UB3840UB3070026400
10 ST
Selenium 10U10U10U10U10U10U
50 ST
Silver 10UJ10UJ10UJ10UJ10UJ10UJ
20000 ST
Sodium 11400 49100 79001760019700 35900
0.5 GV
Thallium 10U10U10U10U10U10U
--
Vanadium 50U50U50U50U50U50U
2000 GV
Zinc 20U20U20U20U20U20U
ug/lMicrograms per liter
UCompound was analyzed for but not detec
GV Guidance Value
ST Standard
#Standard for total iron and manganese is
--No ST or GV
J:Estimated value or detection limit
UB:Non-detect based on blank results
JL:Estimated bias low
Exceeds Class GA Standard/Guidance Value
J:\\_HazWaste\\5535 (Southold GW and LFG Monitoring)\\Groundwater\\2nd Semiannual Report 2022\\December_2022
Table A-3
Page 1 of 2
Town of Southold Landfill
Groundwater Monitoring Program
Monitoring Well Sample Results
Leachate Indicators
Sample ID MW-1SMW-1DMW-3SMW-3DMW-4SMW-4D
Sample_date 12/29/2212/29/2212/29/2212/28/2212/28/2212/28/22
Units in mg/l
NYSDEC CLASS GA
GROUNDWATER
ST/GV
Chemical Name
---5.429.3143195249602
Alkalinity, Total (as CaCO3)
---2U2U74.62U2U
Biochemical Oxygen Demand (BOD)
2 GV0.5U0.017J0.15J0.1J0.5U1.2
Bromide
250 ST23.125.253.267.713240
Chloride (as Cl)
---10U10U49.425.22328
Cod - Chemical Oxygen Demand
15 ST5U5U10
Color 11023023
---25.210999.6120317511
Hardness (as CaCO3)
2 ST0.1U0.1U0.480.1U
Nitrogen, Ammonia (as N)20.6J17.1
---0.1U0.1U6.224.90.1U18.8
Nitrogen, Kjeldahl, Total
10 ST0.98J3.2J0.5U0.05UJ0.05UJ
Nitrogen, Nitrate (as N)22.4J
0.001 ST0.0050U0.005U0.0050U0.005U0.0050U
Phenolics, Total Recoverable 0.0089
250 ST13.569.215.347.449.497.1
Sulfate (as SO4)
500 ST65171260312J
Total Dissolved Solids 504J1200J
---1U1U5.86.98.411.8
Total Organic Carbon
mg/lMilligrams per liter
UCompound was analyzed for but not detected
--No ST or GV
GV Guidance Value
ST Standard
JEstimated value or detection limit
Exceeds Class GA Standard/Guidance Value
J:\\_HazWaste\\5535 (Southold GW and LFG Monitoring)\\Groundwater\\2nd Semiannual Report 2022\\December_2022
Table A-3
Page 2 of 2
Town of Southold Landfill
Groundwater Monitoring Program
Monitoring Well Sample Results
Leachate Indicators
Sample ID MW-5SMW-5DMW-6SMW-6DMW-8SMW-8D
Sample_date 12/28/2212/28/2212/28/2212/28/2212/28/2212/28/22
Units in mg/l
NYSDEC CLASS GA
GROUNDWATER
ST/GV
Chemical Name
---25.231737.535.3247160
Alkalinity, Total (as CaCO3)
---2U2U4U2U4U4U
Biochemical Oxygen Demand (BOD)
2 GV0.5U0.15J0.066J0.5U0.5U0.49J
Bromide
250 ST
17.761.617.333.23863
Chloride (as Cl)
---
Cod - Chemical Oxygen Demand 10U38.431.810U25.216.5U
15 ST
Color 5 2370 5 180120J
---
Hardness (as CaCO3)33.211764.9146201202
2 ST
Nitrogen, Ammonia (as N)0.1U 33.9 0.1UJ0.1UJ 13.9J7.3
---
Nitrogen, Kjeldahl, Total 0.5536.91.20.5316.8J17.1
10 ST
Nitrogen, Nitrate (as N)0.89J0.05UJ5.2J2.2J0.05U0.049J
0.001 ST
Phenolics, Total Recoverable 0.0050U 0.00310.0062 0.0050U 0.00580.0039
250 ST
Sulfate (as SO4)11.629.58.196.740.199.9
500 ST
Total Dissolved Solids 89J349J132J259J340J396J
---
Total Organic Carbon 1.611.613.82.582.6
mg/lMilligrams per liter
UCompound was analyzed for but not detected
--No ST or GV
GV Guidance Value
ST Standard
JEstimated value or detection limit
Exceeds Class GA Standard/Guidance Value
J:\\_HazWaste\\5535 (Southold GW and LFG Monitoring)\\Groundwater\\2nd Semiannual Report 2022\\December_2022
APPENDIX B
GROUNDWATER SAMPLING LOGS
5535\\CC03082301_1st-Semi-Annual-GMRpt
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/29/2022
SAMPLE ID: MW-1S_12/29/2022
WELL ID: MW-1S Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................53.30 Time:
Initial static water level (from top of casing) .........................39.35 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 13.95 ft. of water x 0.16 = 2.2 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
30 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 5.31 12.98 0.139 0.0 8.94 193
4 5.34 13.02 0.138 0.0 8.78 198
8 5.35 13.05 0.138 0.0 8.93 199
12 5.39 13.09 0.139 0.0 8.82 207
16 5.39 13.11 0.140 0.0 8.84 211
20 5.39 13.11 0.141 0.0 8.85 212
24 5.32 13.13 0.142 0.0 9.45 219
26 5.32 13.14 0.142 0.0 9.46 219
30 5.32 13.14 0.142 0.0 9.38 219
Sampling
Time of Sample Collection: 3:45 p.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cool 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 2.0
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/29/2022
SAMPLE ID: MW-1D_12/29/2022
WELL ID: MW-1D Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................149.30 Time:
Initial static water level (from top of casing) .........................39.29 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 110.01 ft. of water x 0.16 = 17.6 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
70 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 7.11 12.72 0.256 0.0 2.68 -53
10 7.05 12.48 0.348 0.0 3.45 -42
20 7.04 12.46 0.354 0.0 3.53 -33
30 7.02 12.43 0.356 0.0 3.52 -20
40 6.95 12.40 0.357 0.0 3.54 4
50 6.96 12.37 0.357 0.0 3.52 14
60 6.96 12.36 0.356 0.0 3.77 19
70 6.95 12.31 0.355 0.0 3.76 17
Sampling
Time of Sample Collection: 2:15 p.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cool 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 2.0
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/29/2022
SAMPLE ID: MW-3S_12/29/2022
WELL ID: MW-3S Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................58.60 Time:
Initial static water level (from top of casing) .........................44.65 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 13.95 ft. of water x 0.16 = 2.2 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
20 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 6.46 14.53 0.699 0.0 0.68 -89
4 6.46 14.54 0.698 0.0 0.66 -90
8 6.47 14.55 0.697 0.0 0.62 -90
12 6.47 14.57 0.696 0.0 0.52 -91
16 6.47 14.55 0.695 0.0 0.69 -91
20 6.47 14.56 0.695 0.0 0.67 -91
Sampling
Time of Sample Collection: 11:25 a.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cool 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 1.5
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-3D_12/28/2022
WELL ID: MW-3D Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................123.60 Time:
Initial static water level (from top of casing) .........................44.35 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 79.25 ft. of water x 0.16 = 12.6 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
55 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 6.43 13.69 0.731 0.0 1.32 -68
10 6.52 13.79 0.742 0.0 0.62 -75
20 6.56 13.81 0.749 0.0 0.52 -79
30 6.60 13.82 0.756 0.0 0.48 -82
40 6.61 13.84 0.762 0.0 0.43 -86
50 6.62 13.87 0.764 0.0 0.42 -86
55 6.59 13.92 0.765 0.0 0.42 -86
Sampling
Time of Sample Collection: 4:00 p.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 2.0
Collected MS/MSD samples
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-4S_12/28/2022
WELL ID: MW-4S Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................72.20 Time:
Initial static water level (from top of casing) .........................58.45 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 13.65 ft. of water x 0.16 = 2.1 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
20 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 7.40 15.75 0.490 0.0 4.59 139
4 7.36 15.49 0.489 0.0 4.17 160
8 7.29 15.17 0.486 0.0 3.86 164
12 7.26 14.92 0.487 0.0 3.60 172
16 7.25 14.89 0.487 0.0 3.49 170
20 7.25 14.90 0.485 0.0 3.57 169
Sampling
Time of Sample Collection: 11:10 a.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 1.25
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-4D_12/28/2022
WELL ID: MW-4D Time On-site: Time Off-site:
SAMPLERS: Keith Robins .
Depth of well (from top of casing) ........................................149.30 Time:
Initial static water level (from top of casing) .........................58.35 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 90.95 ft. of water x 0.16 = 14.5 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
60 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 7.89 14.69 1.80 0.0 1.41 117
10 7.66 14.42 1.79 0.0 1.10 112
20 7.63 14.17 1.70 0.0 0.76 104
30 7.59 14.01 1.69 0.0 0.63 96
40 7.54 13.96 1.67 0.0 0.59 92
50 7.56 13.80 1.68 0.0 0.42 90
60 7.53 13.75 1.66 0.0 0.39 90
Sampling
Time of Sample Collection: 10:40 a.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Yellow tint to clear
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes X no describe Slight leachate odor
Comments:
GPM: 1.25
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-5S_12/28/2022
WELL ID: MW-5S Time On-site: Time Off-site:
SAMPLERS: Keith Robins .
Depth of well (from top of casing) ........................................77.70 Time:
Initial static water level (from top of casing) .........................63.58 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 14.12 ft. of water x 0.16 = 2.3 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
20 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 5.09 12.03 0.133 0.0 5.29 265
4 5.11 12.07 0.132 0.0 5.27 266
8 5.05 12.25 0.135 0.0 5.28 274
12 5.03 12.23 0.135 0.0 5.29 271
16 5.25 12.19 0.135 0.0 5.12 263
20 5.30 12.21 0.134 0.0 5.10 264
Sampling
Time of Sample Collection: 12:05 p.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 1.0
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-5D_12/28/2022
WELL ID: MW-5D Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................134.50 Time:
Initial static water level (from top of casing) .........................63.07 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 71.43 ft. of water x 0.16 = 11.4 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
50 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 6.46 12.02 0.341 0.0 4.35 189
10 6.55 12.61 0.674 0.0 2.41 154
20 6.60 12.62 0.777 0.0 2.35 132
30 6.63 12.61 0.805 0.0 2.22 129
40 6.62 12.72 0.847 0.0 2.55 106
50 6.62 12.73 0.848 0.0 2.56 105
Sampling
Time of Sample Collection: 1:15 p.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 1.0
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-6S_12/28/2022
WELL ID: MW-6S Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................62.60 Time:
Initial static water level (from top of casing) .........................50.90 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 11.70 ft. of water x 0.16 = 1.9 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
20 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 6.07 11.36 0.171 0.0 1.92 250
4 5.53 11.42 0.167 0.0 1.69 261
8 5.38 11.58 0.167 0.0 0.78 267
12 5.34 11.66 0.190 0.0 0.86 272
16 5.38 11.67 0.192 0.0 0.86 270
20 5.36 11.68 0.194 0.0 0.83 271
Sampling
Time of Sample Collection: 3:05 p.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Yellow tint to clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 1.5
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLINGRECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-6D_12/28/2022
WELL ID: MW-6D Time On-site: Time Off-site:
SAMPLERS: Keith Robins .
Depth of well (from top of casing) ........................................144.30 Time:
Initial static water level (from top of casing) .........................50.87 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 93.43 ft. of water x 0.16 = 15 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
50 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 5.83 11.57 0.410 0.0 2.23 232
10 5.47 11.68 0.415 0.0 0.93 246
20 5.50 11.73 0.418 0.0 0.62 254
30 5.53 11.74 0.417 0.0 0.63 254
40 5.46 11.73 0.415 0.0 0.60 259
50 5.50 11.73 0.414 0.0 0.40 259
Sampling
Time of Sample Collection: 2:30 p.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 1.5
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-8S_12/28/2022
WELL ID: MW-8S Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................61.50 Time:
Initial static water level (from top of casing) .........................50.48 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 11.02 ft. of water x 0.16 = 1.7 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
20 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 7.04 13.68 0.590 0.0 2.45 -98
4 7.08 13.97 0.591 0.0 2.36 -103
8 7.03 14.06 0.599 0.0 2.22 -101
12 7.02 14.10 0.596 0.0 2.19 -96
16 7.00 14.11 0.593 0.0 2.17 -98
20 6.98 14.13 0.592 0.0 2.20 -93
Sampling
Time of Sample Collection: 8:30 a.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Yellow tint to clear
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes X no describe Slight leachate odor
Comments:
GPM: 1.5
/FieldForms/
FIELD OBSERVATION LOG
GROUNDWATER SAMPLING RECORD
SITESouthold LandfillDATE12/28/2022
SAMPLE ID: MW-8D_12/28/2022
WELL ID: MW-8D Time On-site: Time Off-site:
SAMPLERS: Keith Robins
Depth of well (from top of casing) ........................................139.25 Time:
Initial static water level (from top of casing) .........................49.27 Time:
Purging Method Well Volume Calculation:
Airlift Centrifugal 2 in. casing: 89.98 ft. of water x 0.16 = 14.3 gallons
Bailer Pos. Displ. 3 in. casing: ft. of water x 0.36 = gallons
Submersible X Disposable 4 in. casing: ft. of water x 0.65 = gallons
Pump Bladder Pump
(Low Flow)
volume of water removed:
60 gal. >3 volumes: yes X no purged dry? yes no X
Field Tests
Volume of Purge pH Temp (c°) Spec. Cond. Turbidity (NTUs) Dissolved Oxygen ORP (mv)
Water (in gallons) (ms/cm) (mg/l)
Initial 7.20 13.91 0.604 0.0 1.16 -29
10 7.19 13.64 0.610 0.0 0.91 -46
20 7.22 13.72 0.611 0.0 0.76 -63
30 7.28 13.59 0.613 0.0 0.66 -69
40 7.30 13.41 0.609 0.0 0.59 -84
50 7.32 13.29 0.607 0.0 0.46 -88
60 7.33 13.28 0.608 0.0 0.47 -90
Sampling
Time of Sample Collection: 9:25 a.m.
Method: Analyses:
Stainless steel bailer TCL VOCs 602 503 Other
Teflon bailer TCL SVOCs
Pos. Disp. Pump Priority Pollutant Metals & Iron
XDisposable bailer X Other NYCRR
Part 363 Baseline
Parameters
Dedicated pump
Other: Disposable
Bladder Pump
(Low Flow)
Observations
Weather/Temperature: Partly cloudy, cold 35-45 F
Sample description: Clear, no odor
Free Product? yes no X describe
Sheen? yes no X describe
Odor? yes no X describe
Comments:
GPM: 1.5
/FieldForms/
APPENDIX C
CHAIN OF CUSTODY FORMS
5535\\CC03082301_1st-Semi-Annual-GMRpt
Page 136 of 157
Page 137 of 157
Page 138 of 157
Page 139 of 157
APPENDIX D
DATA VALIDATION CHECK LIST
5535\\CC03082301_1st-Semi-Annual-GMRpt
DATA VALIDATION CHECKLIST
Project Name: Town of Southold Landfill
Project Number: 5535
Sample Date(s): December 28 and 29, 2022
Sample Team: Keith Robins
Matrix/Number Water/ 12
of Samples: Field Duplicates/ 0
Trip Blanks / 2
Field Blanks/ 0
Analyzing Pace Analytical Services, LLC, Melville, NY and Phenolic subcontracted to
Laboratory: Microbac, Marietta, OH
Analyses: Volatile Organic Compounds (VOCs): by SW846 8260C
Metals: Total by SW846 Method 6010C and mercury by Method 7470A
General Chemistry: Hardness (SM 2340 B), Alkalinity (SM2320B), Chemical
Oxygen Demand (COD) (USEPA 410.4), Color (SM 2120B), Fluoride, Sulfate,
and Bromide (USEPA 300.0), Chloride (SM22 45000), Total Dissolved Solids
(SM 2540C), Biochemical Oxygen Demand (BOD) (SM5210B), Nitrate (USEPA
353.2), Ammonia (SM 22 4500), Total Kjeldahl Nitrogen (TKN) (USEPA 351.2),
Hexavalent Chromium (SM22 3500), Cyanide (USEPA 9014), Total Organic
Carbon (USPEA 9060A) and subcontracted to Microbac for Phenolics (USEPA
420.1)
Laboratory
70241540 Date: 01/20/2023
Report No:
ANALYTICAL DATA PACKAGE DOCUMENTATION
Performance
GENERAL INFORMATION
Reported Acceptable Not
No Yes No Yes Required
1. Sample results X X
2. Parameters analyzed X X
3. Method of analysis X X
4. Sample collection date X X
5. Laboratory sample received date X X
6. Sample analysis date X X
7. Copy of chain-of-custody form signed by
X X
Lab sample custodian
8. Narrative summary of QA or sample
X X
problems provided
QA - quality assurance
Comments:
A validation was conducted on the data package and any applicable qualification of the data was determined
using the USEPA National Functional Guidelines of Organic Data Review, November 2020, or USEPA
National Functional Guidelines of Inorganic Data Review, November 2020, method performance criteria,
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Forms\\70241540_Dec2022.docx 1/6
and D&B Engineers and Architects, P.C. professional judgment. The qualification of data discussed
within this data validation checklist did not impact the usability of the sample results.
Custody Numbers: 70241540
SAMPLE AND ANALYSIS LIST
Sample
Analysis
Parent
Collection
Sample ID Lab ID
Sample
Date
VOC SVOC PCB MET MISC
TRIP BLANK 70241540-001 X
12/28/2022
MW-8S 70241540-002 12/28/2022 X X X
MW-8D 70241540-003 12/28/2022 X X X
MW-4D 70241540-004 12/28/2022 X X X
MW-4S 70241540-005 12/28/2022 X X X
MW-5S 70241540-006 12/28/2022 X X X
MW-5D 70241540-007 12/28/2022 X X X
MW-6D 70241540-008 12/28/2022 X X X
MW-6S 70241540-009 12/28/2022 X X X
MW-3D 70241540-010 12/28/2022 X X X
TRIP BLANK 70241540-011 12/29/2022 X
MW-3S 70241540-012 12/29/2022 X X X
MW-1D 70241540-013 12/29/2022 X X X
MW-1S 70241540-014 12/29/2022 X X X
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ORGANIC ANALYSES
VOCS
Performance
Reported Not
Acceptable
No Yes No Yes Required
1. Holding times X X
2. Blanks
A. Method blanks X X
B. Trip blanks X X
C. Field blanks X
3. Matrix spike (MS) %R X X
4. Matrix spike duplicate (MSD) %R X X
5. MS/MSD precision (RPD) X X
6. Laboratory control sample (LCS) %R X X
7. Surrogate spike recoveries X X
8. Instrument performance check X X
9. Internal standard retention times & areas X X
X X
X X
12. Field duplicate X
VOCs - volatile organic compounds %D - percent difference RRF - relative response factor
%R - percent recovery %RSD - percent relative standard deviation RPD - relative percent difference
Comments:
Performance was acceptable, except the following:
3 - 5. The %Rs were above the QC limits for 2-hexanone, 1,1,1-trichloroethane, 1,1,2-
trichloroethane, 1,2,3-trichloropropane, 1,2-dibromoethane (EDB), 2-hexanone, acrylonitrile,
bromomethane, bromochloromethane, chlorobenzene, iodomethane, methylene chloride,
styrene, trichloroethene, tetrachloroethene, trans-1,4-dichloro-2-butene, and xylene (total) in
the MS and/or MSD. The RPD was above the QC limit in the MS/MSD for bromomethane
and iodomethane. Chlorobenzene was detected in the samples MW-3D, MW-4D, MW-5D,
MW-8S, and MW-8D and were qualified as estimated (J).
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INORGANIC ANALYSES
METALS
Performance
Reported Acceptable Not
No Yes No Yes Required
1. Holding times X X
2. Blanks
A. Preparation and calibration blanks X X
B. Field blanks X
3. Initial calibration verification %R X X
4. Continuing calibration verification %R X X
5. CRDL standard %R X X
6. Interference check sample %R X X
7. Laboratory control sample %R X X
8. Spike sample %R X X
9. Post digestive spike sample %R X X
10. Duplicate RPD X X
11. Serial dilution check %D X X
12. Field duplicate X
%R - percent recovery %D - percent difference RPD - relative percent difference
Comments:
Performance was acceptable, except the following:
2A. Boron, magnesium, potassium, mercury, and vanadium were detected in the preparation blank.
Potassium was qualified as non-detect (UB) in samples MW-5S, MW-6D, and MW-6S.
8&9. The %R was below the QC limit in the spike and post digestive spike for silver. Silver was
qualified as an estimated limit (UJ) or estimated bias low (JL) in all samples.
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INORGANIC ANALYSES
GENERAL CHEMISTRY
Performance
Reported Acceptable Not
No Yes No Yes Required
1. Holding times X X
2. Blanks
A. Method blanks X X
B. Field blanks X
3. Standards %R X X
4. CRDL Standard %R X X
5. Laboratory spike %R X X
6. Laboratory duplicate RPD X X
8. Matrix spike and matrix spike duplicate %R X X
9. Field duplicate X
%R percent recovery RPD - relative percent difference %D percent difference
RSD - relative standard deviation
Comments:
Performance was acceptable, except the following:
1. The holding times were exceeded, hexavalent chromium in and was qualified as an estimated
detection limit (UJ) in samples MW-1D, MW-3S, MW-4D, MW-8D, and MW-8S.
2A. Sulfate was detected in the method blank. Based on concentrations qualification of the data
was not necessary.
5. The RPD was above the QC limit in the laboratory duplicate for total dissolved solids associated
with samples MW-8S, MW-8D, MW-4D, MW-4S, MW-5D, MW-5S, MW-6D, MW-6S, and
MW-3D and it was qualified as estimated (J).
8. The %Rs were below the QC limits in the MS for nitrate associated with samples MW-8D, MW-
4D, MW-4S, MW-5S, MW-5D, MW-6D, MW-6S, and MW-3D and ammonia associated with
samples MW-6D, MW-6S, and MW-3D. They were qualified as estimated (J/UJ) in all samples.
The %R was above the QC limit in the MS for nitrate associated with samples MW-8S, MW-3S,
MW-1D, and MW-1S. Nitrate was qualified as estimated (J) in samples MW-1D and MW-1S.
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DATA VALIDATION AND
QUALIFICATION SUMMARY Laboratory Numbers: 70241540
Sample ID Analyte(s) Qualifier Reason(s)
VOCs
MW-3D, MW-4D, MW-5D, The %R was above the QC limit
Chlorobenzene J
MW-8S, and MW-8D in the MS and/or MSD.
Metals
MW-5S, MW-6D, and MW-6S Potassium UB Detected in the blanks
The %R was below the QC limit
All samples Silver UJ/JL in the spike and post digestive
spike
General Chemistry
MW-1D, MW-3S, MW-4D,
Hexavalent chromium UJ The holding times were exceeded
MW-8D, and MW-8S
MW-8S, MW-8D, MW-4D,
The RPD was above the QC limit
MW-4S, MW-5D, MW-5S, MW-Total dissolved solids J
in the laboratory duplicate
6D, MW-6S, and MW-3D
MW-8D, MW-4D, MW-4S,
MW-5S, MW-5D, MW-6D, Nitrate
The %Rs were below the QC
J/UJ
MW-6S, and MW-3D
limits in the MS
MW-6D, MW-6S, and MW-3D Ammonia
The %R was above the QC limit
MW-1D and MW-1S Nitrate J
in the MS
Donna M. Brown 3/7/2023
VALIDATION PERFORMED BY & DATE:
VALIDATION PERFORMED BY
SIGNATURE:
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APPENDIX E
HISTORICAL GRAPHS
5535\\CC03082301_1st-Semi-Annual-GMRpt
Legend
MW-1S*
MW-3S
750
MW-4S
MW-5S
700
MW-6S
650
MW-8S
600
550
500
450
400
350
300
250
200
150
100
50
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\3753\\graphs\\5S_Alk.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
Historical Alkalinity Data for Shallow Monitoring Wells
E
Legend
MW-1D*
MW-3D
MW-4D
900
MW-5D
MW-6D
800 MW-8D
700
600
500
400
300
200
100
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
J:\\_HazWaste\\5535\\graphs\\5_Alk.grf
*=only upgradient well
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Alkalinity Data for Deep Monitoring Wells
Legend
MW-1S*
60
MW-3S
MW-4S
56
MW-5S
52
MW-6S
MW-8S
48
44
40
36
32
28
24
20
16
12
8
4
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_Amm.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Ammonia Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
100
MW-5D
MW-6D
90
MW-8D
80
70
60
50
40
30
20
10
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
J:\\_HazWaste\\5535\\graphs\\5_Amm.grf
*=only upgradient well
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
Historical Ammonia Data for Deep Monitoring Wells
E
Legend
MW-1S*
MW-3S
MW-4S
110000
MW-5S
MW-6S
100000
MW-8S
90000
80000
70000
60000
50000
40000
30000
20000
10000
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_CA.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Calcium Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
180000
MW-5D
MW-6D
160000
MW-8D
140000
120000
100000
80000
60000
40000
20000
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5_CA.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Calcium Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
MW-4S
250
MW-5S
MW-6S
MW-8S
200
150
100
50
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_CL.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Chloride Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
500
MW-5D
MW-6D
450
MW-8D
400
350
300
250
200
150
100
50
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5_CL.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
Historical Chloride Data for Deep Monitoring Wells
E
Legend
MW-1S*
MW-3S
MW-4S
MW-5S
160000
MW-6S
120000
MW-8S
80000
40000
500
450
400
350
300
250
200
150
100
50
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_FE.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Iron Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
MW-5D
100000
80000
MW-6D
60000
MW-8D
40000
20000
1000
900
800
700
600
500
400
300
200
100
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5_FE.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Iron Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
MW-4S
500
MW-5S
MW-6S
MW-8S
400
300
200
100
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
J:\\_HazWaste\\5535\\graphs\\5S_hard.grf
*=only upgradient well
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
Historical Hardness Data for Shallow Monitoring Wells
E
Legend
MW-1D*
MW-3D
MW-4D
900
MW-5D
MW-6D
MW-8D
800
700
600
500
400
300
200
100
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5_hard.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Hardness Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
MW-4S
120000
MW-5S
MW-6S
110000
MW-8S
100000
90000
80000
70000
60000
50000
40000
30000
20000
10000
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_K.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Potassium Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
130000
MW-5D
MW-6D
120000
MW-8D
110000
100000
90000
80000
70000
60000
50000
40000
30000
20000
10000
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWast\\5535\\graphs\\5_K.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Potassium Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
MW-4S
NYSDEC CLASS
35000
GA STANDARD
MW-5S
MW-6S
MW-8S
30000
25000
20000
15000
10000
5000
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_MN.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Magnesium Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
70000
MW-5D
MW-6D
MW-8D
60000
50000
40000
NYSDEC CLASS
GA STANDARD
30000
20000
10000
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5_MN.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Magnesium Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
MW-4S
9000
MW-5S
MW-6S
8000
MW-8S
7000
6000
5000
4000
3000
2000
1000
NYSDEC CLASS
GA STANDARD
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_MN.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Manganese Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
14000
MW-5D
MW-6D
MW-8D
12000
10000
8000
6000
4000
2000
NYSDEC CLASS
GA STANDARD
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5_MN.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Manganese Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
MW-4S
160000
MW-5S
150000
MW-6S
MW-8S
140000
130000
120000
110000
100000
90000
80000
70000
60000
50000
40000
30000
20000
10000
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_NA.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Sodium Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
240000
MW-4D
MW-5D
220000
MW-6D
MW-8D
200000
180000
160000
140000
120000
100000
80000
60000
40000
20000
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5_NA.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Sodium Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
MW-4S
40
MW-5S
MW-6S
MW-8S
30
20
10
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_Nit.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
Historical Nitrate Data for Shallow Monitoring Wells
E
Legend
MW-1D*
MW-3D
MW-4D
13
MW-5D
MW-6D
12
MW-8D
11
10
9
8
7
6
5
4
3
2
1
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\3753\\graphs\\5_Nit.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Nitrate Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
MW-4S
300
MW-5S
MW-6S
MW-8S
250
200
150
100
50
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_sul.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Sulfate Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
1100
MW-5D
MW-6D
1000
MW-8D
900
800
700
600
500
400
300
200
100
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5_sul.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
Historical Sulfate Data for Deep Monitoring Wells
E
Legend
MW-1S*
MW-3S
MW-4S
1100
MW-5S
MW-6S
1000
MW-8S
900
800
700
600
500
400
300
200
100
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\5S_TDS.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
Historical Total Dissolved Solids Data for Shallow Monitoring Wells
E
Legend
MW-1D*
MW-3D
MW-4D
1600
MW-5D
MW-6D
MW-8D
1400
1200
1000
800
600
400
200
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
J:\\_HazWaste\\5535\\graphs\\5_TDSa.grf
*=only upgradient well
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
Historical Total Dissolved Solids Data for Deep Monitoring Wells
E
Legend
MW-1S*
MW-3S
MW-4S
20
MW-5S
MW-6S
MW-8S
16
12
8
4
0
*=only upgradient well
J:\\_HazWaste\\3175\\graph\\5S_clbz.grf
Sample Collection Date
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Chlorobenzene Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
16
MW-5D
MW-6D
MW-8D
12
8
4
0
*=only upgradient well
J:\\_HazWaste\\3753\\graphs\\5D_clbz.grf
Sample Collection Date
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Chlorobenzene Data for Deep Monitoring Wells
Legend
MW-1S*
MW-3S
50
MW-4S
MW-5S
40
MW-6S
30
MW-8S
20
14
12
10
8
6
4
2
0
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\5535\\graphs\\S_TVOC.grf
Town of Southold Landfill
Appendix
6155 Cox Lane, Cutchogue, NY
E
Historical Total VOCs Data for Shallow Monitoring Wells
Legend
MW-1D*
MW-3D
MW-4D
30
MW-5D
MW-6D
MW-8D
20
16
14
12
10
8
6
4
2
0
1/1/091/1/101/1/111/1/121/1/131/1/141/1/151/1/161/1/171/1/181/1/191/1/201/1/211/1/221/1/23
Sample Collection Date
*=only upgradient well
J:\\_HazWaste\\3753\\graphs\\5_TVOC.grf
Town of Southold Landfill
Figure
6155 Cox Lane, Cutchogue, NY
E
Historical Total VOCs Data for Deep Monitoring Wells