surface water sampling in tributary t11a and the …

2016 Surface Water Sampling Report.Doc

Arcadis of New York, Inc.

One Lincoln Center

110 West Fayette Street

Suite 300

Syracuse, New York 13202

Tel 315 446 9120

www.arcadis.com

Page:

1/7

Kevin Mooney

Senior Project Manager

General Electric Company

159 Plastics Avenue

Pittsfield, MA 01201

Subject:

2016 Surface Water Sampling in Tributary T11A and the Valatie Kill Dewey Loeffel Landfill Superfund Site RI/FS Order for Drainageways (Index No. CERCLA 02-2013-2030) Nassau, New York

Dear Mr. Mooney:

This letter report has been prepared by Arcadis of New York, Inc. (Arcadis) on behalf of the General Electric Company (GE) to summarize the activities performed and results of the 2016 surface water sampling in Tributary T11A and the Valatie Kill located in the Town of Nassau, Rensselaer County, New York. The activities described herein were completed in general accordance with the Phase 1 Remedial Investigation (RI) Work Plan originally submitted to the United States Environmental Protection Agency (USEPA) on January 22, 2014 and last revised on June 1, 2015, which was approved by USEPA on August 6, 2015.

BACKGROUND

GE submitted to the New York State Department of Environmental Conservation (NYSDEC) on December 22, 2010 a Statement of Work (SOW) to implement an expanded surface water monitoring program within the western drainageway between the Dewey Loeffel Landfill and Nassau Lake, including the collection of surface water samples on three occasions at several locations using methods that result in lower detection limits than those used previously. This was proposed to better assess the transport of polychlorinated biphenyls (PCBs), including into and out of Tributary T11A, and the potential implications for PCB concentrations in fish. NYSDEC approved implementation of this SOW in a June 9, 2011 email.

Surface water samples were collected during three events on July 6, July 29, and September 13, 2011. A letter report that summarized the activities performed and results of the surface water sampling was submitted to NYSDEC and USEPA on November 1, 2011. For reference, Tables 1 through 4 from the 2011 letter report are presented in Appendix A.

ENVIRONMENT

Date:

May 8, 2017

Contact:

Donald Sauda, P.E.

Phone:

315.671.9214

Email:

[email protected]

Our ref:

B0010073

arcadis.com 2016 Surface Water Sampling Report.doc

Mr. Kevin Mooney May 8, 2017

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Surface water samples were collected during three events on June 7, October 5, and November 1, 2012. A letter report that summarized the activities performed and results of the surface sampling was submitted to NYSDEC and USEPA on December 20, 2012. For reference, Tables 1 through 4 from the 2012 letter report are presented in Appendix A.

Surface water samples were collected during three events on June 24, July 25, and August 21, 2013. A letter report that summarized the activities performed and results of the surface sampling was submitted to NYSDEC and USEPA on November 14, 2013. For reference, Tables 1 through 4 from the 2013 letter report are presented in Appendix A.

Surface water samples were collected during three events on June 11, July 30, and October 24, 2014. A letter report that summarized the activities performed and results of the surface sampling was submitted to NYSDEC and USEPA on March 16, 2015. For reference, Tables 1 through 4 from the 2014 letter report are presented in Appendix A.

Surface water samples were collected during three events on September 16, October 5, and November 4, 2015. A letter report that summarized the activities performed and results of the surface sampling was submitted to NYSDEC and USEPA on January 29, 2016. For reference, Tables 1 through 4 from the 2015 letter report are presented in Appendix A.

2016 SURFACE WATER SAMPLING ACTIVITIES

Surface water samples were collected during three events on June 24, October 14, and November 28, 2016 in Tributary T11A and the Valatie Kill to assess PCBs in surface water at several locations relevant to the ongoing fish monitoring program. The surface water samples were collected at the following 14 locations shown on Figure 1:

• Sampling Location 3U – Above Tributary T11A Upper Third

• Sampling Location 3 – Upper Third of Tributary T11A

• Sampling Location 4 – Middle Third of Tributary T11A

• Sampling Location 5U – Between Middle and Lower Thirds of Tributary T11A

• Sampling Location 5 – Lower Third of Tributary T11A

• Sampling Location 6 – Valatie Kill, Confluence with Tributary T14 (China Hill Road)

• Sampling Location 7UU – Valatie Kill, Above Sample Location 7U

• Sampling Location 7U – Valatie Kill, Above Confluence with Tributary T11A

• Sampling Location 7 – Valatie Kill, Below Confluence with Tributary T11A

• Sampling Location 7D – Valatie Kill, Below Sample Location 7



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• Sampling Location 8 – Valatie Kill, Above Area 28

• Sampling Location 9 – Valatie Kill, Area 28

• Sampling Location 10 – Valatie Kill, Below Area 28

• Sampling Location 11U – Valatie Kill, Above Confluence with Nassau Lake

The samples were collected under a range of flow conditions in the Valatie Kill associated with the months of June, October, and November 2016. During each sampling event, an instantaneous flow measurement was taken using a weir installed in May 2016 as per the Phase 1 RI Work Plan in Tributary T11A (near sampling location 5). Also, an instantaneous flow reading was taken in the Valatie Kill at the United States Geological Survey (USGS) Gauging Station 01360640 located near Area 28 (near sampling location 8). These flow rates are summarized below. For comparison purposes, the maximum, average, median, and minimum flow rates in the Valatie Kill for each sampling month based on meter readings taken every 15 minutes in the Valatie Kill at the USGS Gauging Station are shown.

Date Instantaneous Tributary T11A

Flow (cfs)

June 24, 2016 0.0009

October 14, 2016 0.03

November 28, 2016 0.06

Date Instantaneous

Valatie Kill Flow (cfs)

June 24, 2016 0.8

October 14, 2016 0.23

November 28, 2016 13.7

Month

Metered Valatie Kill Flow (cfs)

Maximum Average Median Minimum

June 2016 40.2 3.5 2.0 0.61

October 2016 32.2 2.4 0.45 0.22

November 2016 31.1 7.1 5.3 1.4



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Surface water grab samples were collected from mid-stream and mid-depth at each of the 14 locations using two 1-liter amber glass containers provided by the analytical laboratory. Samples were collected in a downstream to upstream direction to minimize the effect of any stream disturbance.

To assess the precision and accuracy of the field sampling and analytical methods, quality assurance/quality control (QA/QC) samples were collected during each sampling event including one blind field duplicate along with one matrix spike/matrix spike duplicate (MS/MSD) sample pair. All samples were packed in a cooler with ice for hand-delivery using standard chain-of-custody (COC) procedures to Pace Analytical Services, Inc. (Pace) of Schenectady, New York.

The samples were identified using a unique location and date-based system. The sample identification used the sample location followed by the date of the sampling event. The prefix SW for surface water was used for all samples (e.g., SW-03U-062416). Blind field duplicate samples were labeled with a similar identification, but included “DUP” after the SW prefix rather than the sampling location (e.g., SW-DUP-062416). Copies of the field log sheets are presented in Appendix B.

LABORATORY ANALYSES AND RESULTS

This section presents a summary of a method detection limit (MDL) study originally performed in 2011 and updated in 2015 to support use of the low-level USEPA Method 8082 for PCB quantification, followed by the results from the three surface water sampling events in 2016.

MDL Study Results

The MDL study was completed by Pace using laboratory reagent grade water and utilized Aroclors 1221, 1248, 1254, and 1260, which were the Aroclors that were reported in the surface water sample results. For each Aroclor, the MDL study included seven or eight replicate extractions on a primary column and secondary gas chromatography column confirmation. This study resulted in MDLs of about 0.001 micrograms per liter (µg/L) per Aroclor with a practical quantitation limit (PQL) of about 0.005 µg/L per Aroclor as shown below.

Aroclor MDL (µg/L) PQL (µg/L)

1221 0.00139 0.0069

1248 0.00052 0.0026

1254 0.00056 0.0028

1260 0.00045 0.0022



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These PQLs of about 0.005 µg/L are about an order of magnitude lower than the

0.050 µg/L PQL per Aroclor achieved in surface water samples prior to 2011 from

Tributary T11A and the Valatie Kill using the standard USEPA Method 8082. The

lower MDLs and PQLs were achieved by doubling the sample volume (i.e., two

liters rather than one liter), decreasing the extract concentration volume (i.e., from

ten to two milliliters [mL]), and using a calibration curve low standard of 0.005

micrograms per milliliter (µg/mL). The MDL study is summarized in Appendix C.

Surface Water Sample Results

A total of 45 surface water samples (including three blind duplicate samples) were collected at 14 locations in Tributary T11A and the Valatie Kill, and submitted to Pace for analysis of total PCBs in accordance with low-level USEPA Method 8280 and total suspended solids (TSS) in accordance with Standard Method (SM) 2540D. The surface water data from these three sampling events are presented in Tables 1 (summary), 2 (June 24, 2016), 3 (October 14, 2016), and 4 (November 28, 2016). Copies of the laboratory reports from the three sampling events are provided in Appendix D.

Summary statistics for total PCBs and Aroclor 1260 (the primary Aroclor quantified in past sampling of soil/sediment at the site) from the three surface water sampling events are presented below. Where duplicate samples were collected, the results of the sample pair (i.e., the original sample and its duplicate sample) were averaged before calculating the arithmetic means, geometric means, and medians. Also, in calculating the arithmetic means, geometric means, and medians, each non-detect (ND) sample result for Aroclors 1221, 1248, 1254, and 1260 was represented by zero.

The data in the tables below show that the concentrations of total PCBs and Aroclor 1260 in and above Tributary T11A are generally about an order of magnitude or more greater than the concentrations in the Valatie Kill downstream from the confluence of Tributary T11A. Total PCB concentrations in surface water ranged from less than 0.005 µg/L at all sampling locations in the Valatie Kill Above and Below (except sampling location 7D) the Confluence with Tributary T11A during the third sampling events to 0.432 µg/L at sampling location 3 (Upper Third of Tributary T11A) during the second sampling event.



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Sample Location Number

Sample Description

Total PCBs (µg/L)

Arithmetic Mean

Geometric Mean

Median

3U Above Tributary T11A Upper Third 0.1086 0.0654 0.0392

3 Upper Third of Tributary T11A 0.2294 0.1663 0.2041

4 Middle Third of Tributary T11A 0.2205 0.1477 0.1960

5U Between Middle and Lower Thirds of Tributary T11A 0.1335 0.1230 0.1210

5 Lower Third of Tributary T11A 0.1231 0.1098 0.1300

6 Valatie Kill, Confluence with Tributary T14

(China Hill Road) - Background Sample Location 0.0074 0.0037 0.0075

7UU Above Sample Location 7U 0.0069 0.0035 0.0073

7U Valatie Kill, Above Confluence with Tributary T11A 0.0072 0.0038 0.0107

7 Valatie Kill, Below Confluence with Tributary T11A 0.0098 0.0046 0.0141

7D Below Sample Location 7 0.0207 0.0186 0.0208

8 Valatie Kill, Above Area 28 0.0118 0.0050 0.0111

9 Valatie Kill, Area 28 0.0104 0.0048 0.0141

10 Valatie Kill, Below Area 28 0.0116 0.0051 0.0141

11U Valatie Kill, Above Confluence with Nassau Lake 0.0073 0.0038 0.0098


Sample Description

Aroclor 1260 (µg/L)

Arithmetic Mean

Geometric Mean

Median

3U Above Tributary T11A Upper Third 0.1047 0.0581 0.0276

3 Upper Third of Tributary T11A 0.2097 0.1484 0.1450

4 Middle Third of Tributary T11A 0.2205 0.1477 0.1960

5U Between Middle and Lower Thirds of Tributary T11A 0.1275 0.1124 0.1210

5 Lower Third of Tributary T11A 0.1164 0.1056 0.1300


(China Hill Road) - Background Sample Location ND ND ND

7UU Above Sample Location 7U ND ND ND

7U Valatie Kill, Above Confluence with Tributary T11A 0.0008 0.0008 ND

7 Valatie Kill, Below Confluence with Tributary T11A 0.0028 0.0020 0.0032

7D Below Sample Location 7 0.0103 0.0101 0.0098

8 Valatie Kill, Above Area 28 0.0070 0.0030 0.0034

9 Valatie Kill, Area 28 0.0045 0.0027 0.0062

10 Valatie Kill, Below Area 28 0.0058 0.0031 0.0056

11U Valatie Kill, Above Confluence with Nassau Lake 0.0030 0.0021 0.0041



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As shown on the table below, all detected PCB results were quantified as being

Aroclor 1260.


Sample Description Aroclor

1260 (µg/L)

Total PCBs (µg/L)

% of Aroclor 1260

3U Above Tributary T11A Upper Third 0.1047 0.1086 96%

3 Upper Third of Tributary T11A 0.2097 0.2294 91%

4 Middle Third of Tributary T11A 0.2205 0.2205 100%

5U Between Middle and Lower Thirds of Tributary T11A 0.1275 0.1335 96%

5 Lower Third of Tributary T11A 0.1164 0.1231 95%


(China Hill Road) - Background Sample Location ND 0.0074 0%

7UU Above Sample Location 7U ND 0.0069 0%

7U Valatie Kill, Above Confluence with Tributary T11A 0.0008 0.0072 11%

7 Valatie Kill, Below Confluence with Tributary T11A 0.0028 0.0098 29%

7D Below Sample Location 7 0.0103 0.0207 50%

8 Valatie Kill, Above Area 28 0.0070 0.0118 59%

9 Valatie Kill, Area 28 0.0045 0.0104 43%

10 Valatie Kill, Below Area 28 0.0058 0.0116 49%

11U Valatie Kill, Above Confluence with Nassau Lake 0.0030 0.0073 41%

If you have any questions, please contact me at 315 671 9214.

Sincerely,

Arcadis of New York, Inc. Donald Sauda, P.E. Vice President

TABLES

Table 12016 Surface Water Monitoring

Dewey Loeffel Landfill Superfund SiteNassau, New York

AR 1260 Total PCBs AR 1260 Total PCBs AR 1260 Total PCBs

3U Above Tributary T11A Upper Third SW-03U-(date) 0.259 AG 0.259 0.0276 AG 0.0392 0.0275 AG 0.0275

3 Upper Third of Tributary T11A SW-03-(date) 0.145 AG 0.2041 0.432 AG 0.432 0.0522 AG 0.0522

4 Middle Third of Tributary T11A SW-04-(date) 0.427 AG 0.427 0.196 AG 0.196 0.0385 AG 0.0385

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-(date) 0.204 AG 0.204 0.0575 AG 0.0754 0.121 AG 0.121

5 Lower Third of Tributary T11A SW-05-(date) 0.130 AG 0.1300.163 AG [0.165 AG]

0.2028 [0.165]

0.0553 AG 0.0553

6Confluence with Tributary T14 (China Hill Road) -

Background Sample LocationSW-06-(date) ND (0.005) 0.01474 ND (0.005) 0.00747

ND (0.005) [ND (0.005)]

ND (0.005) [ND (0.005)]

7UU Above Sample Location 7U SW-07UU-(date) ND (0.005) 0.0133 ND (0.005) 0.00732 ND (0.005) ND (0.005)

7U Above Confluence with Tributary T11A SW-07U-(date) ND (0.005) 0.0110 0.00240 AG, J 0.01069 ND (0.005) ND (0.005)

7 Below Confluence with Tributary T11A SW-07-(date) 0.00321 AG,J 0.01531 0.00530 AG 0.01413 ND (0.005) ND (0.005)

7D Below Sample Location 7 SW-07D-(date) 0.0131 AG 0.0315 0.00809 AG 0.02079 0.00979 AG 0.00979

8 Above Area 28 SW-08-(date) 0.0176 AG 0.02428 0.00344 AG, J 0.01112 ND (0.005) ND (0.005)

9 Area 28 SW-09-(date) 0.00720 AG 0.01710 0.00622 AG 0.01408 ND (0.005) ND (0.005)

10 Below Area 28 SW-10-(date)0.0103 AG [0.0130 AG]

0.01844 [0.0233]

0.00561 AG 0.01405 ND (0.005) ND (0.005)

11U Above Confluence with Nassau Lake SW-11U-(date) 0.00473 AG,J 0.01201 0.00412 AG, J 0.00984 ND (0.005) ND (0.005)

Notes:

1. SW = Surface water

2. PCBs = Polychlorinated biphenyls

3. µg/L = Micrograms per liter

4. AR 1260 = Aroclor 1260 (Aroclors 1221, 1248 and/or 1254 were also detected in some samples)

8. [ ] = The associated value in the [ ] is a blind duplicate

9. All samples were collected by Arcadis and analyzed by Pace Analytical Services, Inc.

Tributary T11A

Valatie Kill

5. ND (0.005) = The compound was analyzed for but not detected and the associated numerical value in ( ) is the practical quantization limit (PQL)6. J = Denotes an estimated concentration and the concentration result is greater than or equal to the Method Detection Limit (MDL) but less than the PQL

7. AG = Aroclor 1260 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern

Surface Water Body


Sample Description Sample Identification

Total PCBs (µg/L)

6/24/2016 10/14/2016 11/28/2016

DL 2016 Surface Water Sampling Page 1 of 1

Table 2Surface Water Monitoring - June 24, 2016


AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-062416 ND (0.025) ND (0.025) ND (0.025) 0.259 AG 0.259 28.2

3 Upper Third of Tributary T11A SW-03-062416 ND (0.015) ND (0.015) 0.0591 AF 0.145 AG 0.2041 9.42

4 Middle Third of Tributary T11A SW-04-062416 ND (0.050) ND (0.050) ND (0.050) 0.427 AG 0.427 9.31

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-062416 ND (0.020) ND (0.020) ND (0.020) 0.204 AG 0.204 14.1

5 Lower Third of Tributary T11A SW-05-062416 ND (0.015) ND (0.015) ND (0.015) 0.130 AG 0.130 3.85


Background Sample LocationSW-06-062416 0.0117 PB ND (0.005) 0.00304 AF,J ND (0.005) 0.01474 ND (2.90)

7UU Above Sample Location 7U SW-07UU-062416 0.0133 PB ND (0.005) ND (0.005) ND (0.005) 0.0133 ND (2.79)

7U Above Confluence with Tributary T11A SW-07U-062416 0.0110 PB ND (0.005) ND (0.005) ND (0.005) 0.0110 ND (2.87)

7 Below Confluence with Tributary T11A SW-07-062416 0.0121 PB ND (0.005) ND (0.005) 0.00321 AG,J 0.01531 ND (2.82)

7D Below Sample Location 7 SW-07D-062416 0.0184 PB ND (0.005) ND (0.005) 0.0131 AG 0.0315 10.8

8 Above Area 28 SW-08-062416 0.00668 PB ND (0.005) ND (0.005) 0.0176 AG 0.02428 13.5

9 Area 28 SW-09-062416 0.00990 PB ND (0.005) ND (0.005) 0.00720 AG 0.01710 3.43

10 Below Area 28SW-10-062416

[SW-DUP-062416]0.00814 PB [0.0103 PB]

ND (0.005) ND (0.005)

ND (0.005) ND (0.005)

0.0103 AG [0.0130 AG]

0.01844 [0.0233]

7.75 [6.67]

11U Above Confluence with Nassau Lake SW-11U-062416 0.00728 PB ND (0.005) ND (0.005) 0.00473 AG,J 0.01201 ND (2.84)

Notes:



3. TSS = Total suspended solids


5. mg/L = Milligrams per liter

7. ND (0.005) = The compound was analyzed for but not detected and the associated numerical value in ( ) is the practical quantization limit (PQL)

13. Measured flow rate for Tributary T11A was 0.009 cubic feet per second (cfs)

14. Measured flow rate for the Valatie Kill was 0.8 cfs


TSS (mg/L)Surface Water

Body


Sample Description Sample IdentificationTotal PCBs (µg/L)

9. PB = Aroclor 1221 is being used to report an altered PCB pattern exhibited by the sample - actual Aroclor 1221 is not present in the sample but is reported to more accurately quantify PCB present in sample that has undergone environmental alternation


Tributary T11A

Valatie Kill

6. AR 1260 = Aroclor 1260 (results for Aroclors 1221, 1248 and 1254 are also shown)

8. J = Denotes an estimated concentration and the concentration result is greater than or equal to the Method Detection Limit (MDL) but less than the PQL


10. AF = Aroclor 1254 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern


Table 3Surface Water Monitoring - October 14, 2016


AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-101416 ND (0.005) ND (0.005) 0.0116 AF 0.0276 AG 0.0392 6.35

3 Upper Third of Tributary T11A SW-03-101416 ND (0.0400) ND (0.0400) ND (0.0400) 0.432 AG 0.432 11.3

4 Middle Third of Tributary T11A SW-04-101416 ND (0.0250) ND (0.0250) ND (0.0250) 0.196 AG 0.196 ND (2.82)

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-101416 ND (0.005) ND (0.005) 0.0179 AF 0.0575 AG 0.0754 ND (2.79)

5 Lower Third of Tributary T11ASW-05-101416

[SW-DUP-101416]ND (0.0150) [ND (0.0250)]

ND (0.0150) [ND (0.0250)]

0.0398 AF [ND (0.0250)]

0.163 AG [0.165 AG]

0.2028 [0.165]

11.0 [8.67]


Background Sample LocationSW-06-101416 0.00747 PB ND (0.005) ND (0.005) ND (0.005) 0.00747 ND (2.87)


7U Above Confluence with Tributary T11A SW-07U-101416 0.00829 PB ND (0.005) ND (0.005) 0.00240 AG, J 0.01069 ND (2.84)

7 Below Confluence with Tributary T11A SW-07-101416 0.00883 PB ND (0.005) ND (0.005) 0.00530 AG 0.01413 ND (2.79)

7D Below Sample Location 7 SW-07D-101416 0.0127 PB ND (0.005) ND (0.005) 0.00809 AG 0.02079 ND (2.82)

8 Above Area 28 SW-08-101416 0.00768 PB ND (0.005) ND (0.005) 0.00344 AG, J 0.01112 ND (2.82)

9 Area 28 SW-09-101416 0.00786 PB ND (0.005) ND (0.005) 0.00622 AG 0.01408 ND (2.79)

10 Below Area 28 SW-10-101416 0.00844 PB ND (0.005) ND (0.005) 0.00561 AG 0.01405 2.79

11U Above Confluence with Nassau Lake SW-11U-101416 0.00572 PB ND (0.005) ND (0.005) 0.00412 AG, J 0.00984 ND (2.82)

Notes:







13. Measured flow rate for Tributary T11A was 0.03 cubic feet per second (cfs)14. Measured flow rate for the Valatie Kill was 0.23 cfs



Body





Tributary T11A

Valatie Kill



9. PB = Aroclor 1221 is being used to report an altered PCB pattern exhibited by the sample - actual Aroclor 1221 is not present in the sample but is reported to more accurately quantify PCB present in sample that has undergone environmental alternation

10. AF = Aroclor 1254 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern


Table 4Surface Water Monitoring - November 28, 2016


AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-112816 ND (0.005) ND (0.005) ND (0.005) 0.0275 AG 0.0275 ND (2.79)

3 Upper Third of Tributary T11A SW-03-112816 ND (0.005) ND (0.005) ND (0.005) 0.0522 AG 0.0522 ND (2.79)


5U Between Middle and Lower Thirds of Tributary T11A SW-05U-112816 ND (0.0150) ND (0.0150) ND (0.0150) 0.121 AG 0.121 ND (2.79)

5 Lower Third of Tributary T11A SW-05-112816 ND (0.005) ND (0.005) ND (0.005) 0.0553 AG 0.0553 ND (2.90)


Background Sample LocationSW-06-112816

[SW-DUP-112816]ND (0.005) [ND (0.005)]

ND (0.005) [ND (0.005)]

ND (0.005) [ND (0.005)]

ND (0.005) [ND (0.005)]

ND (0.005) [ND (0.005)]

ND (2.82) [ND (2.90)]

7UU Above Sample Location 7U SW-7UU-112816 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (2.79)

7U Above Confluence with Tributary T11A SW-07U-112816 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (2.90)

7 Below Confluence with Tributary T11A SW-07-112816 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (2.84)

7D Below Sample Location 7 SW-07D-112816 ND (0.005) ND (0.005) ND (0.005) 0.00979 AG 0.00979 5.29

8 Above Area 28 SW-08-112816 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (2.96)

9 Area 28 SW-09-112816 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (2.90)

10 Below Area 28 SW-10-112816 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (2.90)

11U Above Confluence with Nassau Lake SW-11U-112816 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (2.82)

Notes:







10. Measured flow rate for Tributary T11A was 0.06 cubic feet per second (cfs)

11. Measured flow rate for the Valatie Kill was 13.7 cfs


TSS (mg/L)


Surface Water Body



Tributary T11A

Valatie Kill




FIGURE

3

7

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LEGEND:

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DEWEY LOEFFEL LANDFILL SUPERFUND SITE

NASSAU, NEW YORK

APPENDICES

APPENDIX A

Surface Water Monitoring Tables

2011 through 2015



DL 2015 Surface Water Sampling.xlsx Page 1 of 1


3U Above Tributary T11A Upper Third SW-03U-(date) 0.223 AG 0.223 0.101 AG 0.1010.0218 AG

[0.0709 AG]0.0218

[0.0709]


4 Middle Third of Tributary T11A SW-04-(date) 0.932 AG 0.932 0.106 AG 0.106 0.0346 AG 0.0346


5 Lower Third of Tributary T11A SW-05-(date) 0.0558 AG 0.0558 0.0248 AG 0.0248 0.0183 AG 0.0183


Background Sample LocationSW-06-(date) ND (0.010) ND (0.010) ND (0.005) ND (0.005) ND (0.005) ND (0.005)

7UU Above Sample Location 7U SW-07UU-(date) ND (0.010) ND (0.010) ND (0.005) ND (0.005) ND (0.005) ND (0.005)

7U Above Confluence with Tributary T11A SW-07U-(date) ND (0.010) ND (0.010) ND (0.005) ND (0.005) ND (0.005) ND (0.005)

7 Below Confluence with Tributary T11A SW-07-(date) 0.00444 AG, J 0.00444 J 0.00147 AG, J 0.00147 J ND (0.005) ND (0.005)

7D Below Sample Location 7 SW-07D-(date)0.00774 AG, J

[0.00844 AG, J]0.00774 J

[0.00844 J]0.00610 AG 0.00610 0.00185 AG, J 0.00185 J

8 Above Area 28 SW-08-(date) 0.0232 AG 0.02320.00363 AG, J

[0.00284 AG, J]0.00363 J

[0.00284 J]0.00290 AG, J 0.00290 J

9 Area 28 SW-09-(date) 0.0533 AG 0.0533 0.00333 AG, J 0.00333 J 0.0117 AG 0.0117

10 Below Area 28 SW-10-(date) 0.00734 AG, J 0.00734 J 0.00790 AG 0.00790 0.00676 AG 0.00676

11U Above Confluence with Nassau Lake SW-11U-(date) 0.0178 AG 0.0178 0.00361 AG, J 0.00361 J 0.00773 AG 0.00773

Notes:







Surface Water Body



Total PCBs (µg/L)

9/16/2015 10/5/2015 11/4/2015

Tributary T11A

Valatie Kill




Table 2Surface Water Monitoring - September 16, 2015



AR 1221 AR 1248 AR 1254 AR 1260 Total







Background Sample LocationSW-06-091615 ND (0.010) ND (0.010) ND (0.010) ND (0.010) ND (0.010) ND (0.962)


7U Above Confluence with Tributary T11A SW-07U-091615 ND (0.010) ND (0.010) ND (0.010) ND (0.010) ND (0.010) 1.00

7 Below Confluence with Tributary T11A SW-07-091615 ND (0.010) ND (0.010) ND (0.010) 0.00444 AG, J 0.00444 J ND (0.990)

7D Below Sample Location 7SW-07D-091615

[SW-DUP-091615]ND (0.010) ND (0.010)

ND (0.010) ND (0.010)

ND (0.010) ND (0.010)

0.00774 AG, J [0.00844 AG, J]

0.00774 J [0.00844 J]

6.02[7.77]

8 Above Area 28 SW-08-091615 ND (0.010) ND (0.010) ND (0.010) 0.0232 AG 0.0232 19.5

9 Area 28 SW-09-091615 ND (0.010) ND (0.010) ND (0.010) 0.0533 AG 0.0533 5.60

10 Below Area 28 SW-10-091615 ND (0.010) ND (0.010) ND (0.010) 0.00734 AG, J 0.00734 J 2.55

11U Above Confluence with Nassau Lake SW-11U-091615 ND (0.010) ND (0.010) ND (0.010) 0.0178 AG 0.0178 3.73

Notes:







11. Measured flow rate for the Valatie Kill was 2.2 cubic feet per second (cfs)



Tributary T11A

Valatie Kill





Body






AR 1221 AR 1248 AR 1254 AR 1260 Total





5 Lower Third of Tributary T11A SW-05-100515 ND (0.005) ND (0.005) ND (0.005) 0.0248 AG 0.0248 ND (0.962)


Background Sample LocationSW-06-100515 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.943)



7 Below Confluence with Tributary T11A SW-07-100515 ND (0.005) ND (0.005) ND (0.005) 0.00147 AG, J 0.00147 J ND (0.962)

7D Below Sample Location 7 SW-07D-100515 ND (0.005) ND (0.005) ND (0.005) 0.00610 AG 0.00610 1.83

8 Above Area 28SW-08-100515

[SW-DUP-100515]ND (0.005) [ND (0.005)]

ND (0.005)[ND (0.005)]

ND (0.005)[ND (0.005)]

0.00363 AG, J[0.00284 AG, J]

0.00363 J[0.00284 J]

ND (0.980)[6.86]

9 Area 28 SW-09-100515 ND (0.005) ND (0.005) ND (0.005) 0.00333 AG, J 0.00333 J 2.04

10 Below Area 28 SW-10-100515 ND (0.005) ND (0.005) ND (0.005) 0.00790 AG 0.00790 3.96

11U Above Confluence with Nassau Lake SW-11U-100515 ND (0.005) ND (0.005) ND (0.005) 0.00361 AG, J 0.00361 J 1.13

Notes:











Tributary T11A

Valatie Kill




Body






AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-110415

[SW-DUP-110415]ND (0.005) [ND(0.005)]

ND (0.005) [ND(0.005)]

ND (0.005) [ND(0.005)]

0.0218 AG [0.0709 AG]

0.0218 [0.0709]

ND (0.980) [2.60]



5U Between Middle and Lower Thirds of Tributary T11A SW-05U-110415 ND (0.005) ND (0.005) ND (0.005) 0.0222 AG 0.0222 ND (1.00)



Background Sample LocationSW-06-110415 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) 2.35

7UU Above Sample Location 7U SW-7UU-110415 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) 6.50


7 Below Confluence with Tributary T11A SW-07-110415 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.980)

7D Below Sample Location 7 SW-07D-110415 ND (0.005) ND (0.005) ND (0.005) 0.00185 AG, J 0.00185 J ND (0.980)

8 Above Area 28 SW-08-110415 ND (0.005) ND (0.005) ND (0.005) 0.00290 AG, J 0.00290 J ND (0.962)

9 Area 28 SW-09-110415 ND (0.005) ND (0.005) ND (0.005) 0.0117 AG 0.0117 0.980



Notes:









TSS (mg/L)


Surface Water Body



Tributary T11A

Valatie Kill





Loeffel Site EnvironsNassau, New York


3U Above Tributary T11A Upper Third SW-03U-(date) 0.238 AG 0.2830 0.0512 AG 0.0746 0.0328 AG 0.0328


4 Middle Third of Tributary T11A SW-04-(date)0.0941 AG

[0.0944 AG]0.1204

[0.1223]0.0823 AG 0.11634 0.0869 AG 0.0869


5 Lower Third of Tributary T11A SW-05-(date) 0.239 AG 0.2727 0.0864 AG 0.1202 0.0550 AG 0.0550


Background Sample LocationSW-06-(date) ND (0.005) 0.01114 J ND (0.005) 0.00333 ND (0.005) ND (0.005)

7UU Above Sample Location 7U SW-07UU-(date) ND (0.005) 0.0105 ND (0.005) 0.00512 ND (0.005) ND (0.005)

7U Above Confluence with Tributary T11A SW-07U-(date) ND (0.005) 0.0106 ND (0.005) 0.00445 J ND (0.005) ND (0.005)

7 Below Confluence with Tributary T11A SW-07-(date) 0.00480 AG, J 0.01820 J 0.00357 AG, J 0.00785 ND (0.005) ND (0.005)

7D Below Sample Location 7 SW-07D-(date) 0.00507 AG 0.02402 J0.00848 AG[0.0338 AG]

0.01416[0.03985]

0.00276 AG, J 0.00276

8 Above Area 28 SW-08-(date) 0.00290 AG, J 0.01131 J 0.00478 AG, J 0.01093 0.00397 AG, J 0.00397 J

9 Area 28 SW-09-(date) 0.00377 AG, J 0.01229 J 0.00355 AG, J 0.011030.00412 AG, J

[0.00362 AG, J]0.00412 J

[0.00362 J]

10 Below Area 28 SW-10-(date) 0.00892 AG 0.02760 0.00406 AG, J 0.01098 0.00594 AG 0.00594

11U Above Confluence with Nassau Lake SW-11U-(date) 0.00678 AG 0.01836 J 0.00465 AG, J 0.01017 0.00513 AG 0.00513

Notes:

1. SW = Surface water2. PCBs = Polychlorinated biphenyls3. µg/L = Micrograms per liter4. AR 1260 = Aroclor 1260 (Aroclors 1221, 1248 and/or 1254 were also detected in some samples)

8. [ ] = The associated value in the [ ] is a blind duplicate9. All samples were collected by ARCADIS and analyzed by Pace Analytical Services, Inc.

Tributary T11A

Valatie Kill

5. ND (0.005) = The compound was analyzed for but not detected and the associated numerical value in ( ) is the practical quantization limit (PQL)6. J = Denotes an estimated concentration and the concentration result is greater than or equal to the Method Detection Limit (MDL) but less than the PQL7. AG = Aroclor 1260 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern

Surface Water Body



Total PCBs (µg/L)

6/11/2014 7/30/2014 10/24/2014




AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-061114 ND (0.025) 0.0450 AE, B ND (0.025) 0.238 AG 0.2830 24.2

3 Upper Third of Tributary T11A SW-03-061114 ND (0.005) 0.00557 AE, B ND (0.005) 0.0112 AG 0.01677 3.30

4 Middle Third of Tributary T11ASW-04-061114

[SW-DUP-061114]ND (0.010)[ND (0.010)]

0.0263 AE, B[0.0279 AE, B]

ND (0.010) [ND (0.010)]

0.0941 AG[0.0944 AG]

0.1204[0.1223]

6.30[5.20]

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-061114 ND (0.015) 0.0226 AE, B ND (0.015) 0.101 AG 0.1236 3.90

5 Lower Third of Tributary T11A SW-05-061114 ND (0.025) 0.0337 AE, B ND (0.025) 0.239 AG 0.2727 17.0


Background Sample LocationSW-06-061114 0.00732 PB 0.00382 AE, JB ND (0.005) ND (0.005) 0.01114 J ND (1.11)


7U Above Confluence with Tributary T11A SW-07U-061114 0.0106 PB ND (0.005) ND (0.005) ND (0.005) 0.0106 2.60

7 Below Confluence with Tributary T11A SW-07-061114 0.0134 PB ND (0.005) ND (0.005) 0.00480 AG, J 0.01820 J 1.26

7D Below Sample Location 7 SW-07D-061114 0.0166 PB 0.00235 AE, JB ND (0.005) 0.00507 AG 0.02402 J 1.008 Above Area 28 SW-08-061114 0.00841 PB ND (0.005) ND (0.005) 0.00290 AG, J 0.01131 J ND (1.00)

9 Area 28 SW-09-061114 0.00852 PB ND (0.005) ND (0.005) 0.00377 AG, J 0.01229 J 1.40

10 Below Area 28 SW-10-061114 0.0135 PB 0.00518 AE, B ND (0.005) 0.00892 AG 0.02760 3.05

11U Above Confluence with Nassau Lake SW-11U-061114 0.00814 PB 0.00344 AE, JB ND (0.005) 0.00678 AG 0.01836 J 2.53

Notes:

1. SW = Surface water2. PCBs = Polychlorinated biphenyls3. TSS = Total suspended solids4. µg/L = Micrograms per liter5. mg/L = Milligrams per liter

7. ND (0.005) = The compound was analyzed for but not detected and the associated numerical value in ( ) is the practical quantization limit (PQL)8. B = Denotes analyte observed in associated method blank at a concentration exceeding the PQL

12. AE = Aroclor 1248 is being reported as the best Aroclor match but the sample exhibits an altered PCB pattern

14. Measured flow rate for the Valatie Kill was 1.7 cubic feet per second (cfs)15. All samples were collected by ARCADIS and analyzed by Pace Analytical Services, Inc.



Tributary T11A

Valatie Kill



10. PB = Aroclor 1221 is being used to report an altered PCB pattern exhibited by the sample and actual Aroclor 1221 is not present in the sample, but is reported to more accurately quantify PCB present in sample that has undergone environmental alteration


Body




Table 3Surface Water Monitoring - July 30, 2014


AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-073014 0.00380 PB, J ND (0.005) 0.0196 AF 0.0512 AG 0.07460 9.30

3 Upper Third of Tributary T11A SW-03-073014 0.00284 PB, J ND (0.005) 0.0168 AF 0.0499 AG 0.06954 7.404 Middle Third of Tributary T11A SW-04-073014 0.00294 PB, J ND (0.005) 0.0311 AF 0.0823 AG 0.11634 5.90

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-073014 0.00268 PB, J ND (0.005) 0.0297 AF 0.0755 AG 0.10788 8.40

5 Lower Third of Tributary T11A SW-05-073014 0.00207 PB, J ND (0.005) 0.0317 AF 0.0864 AG 0.12017 4.90


Background Sample LocationSW-06-073014 0.00333 PB, J ND (0.005) ND (0.005) ND (0.005) 0.00333 3.90

7UU Above Sample Location 7U SW-07UU-073014 0.00512 PB ND (0.005) ND (0.005) ND (0.005) 0.00512 3.20

7U Above Confluence with Tributary T11A SW-07U-073014 0.00445 PB, J ND (0.005) ND (0.005) ND (0.005) 0.00445 J 3.30

7 Below Confluence with Tributary T11A SW-07-073014 0.00428 PB, J ND (0.005) ND (0.005) 0.00357 AG, J 0.00785 3.20


[SW-DUP-073014]0.00568 PB[0.00605 PB]

ND (0.005)[ND (0.005)]

ND (0.005)[ND (0.005)]

0.00848 AG[0.0338 AG]

0.01416[0.03985]

7.16[32.9]

8 Above Area 28 SW-08-073014 0.00615 PB ND (0.005) ND (0.005) 0.00478 AG, J 0.01093 3.10

9 Area 28 SW-09-073014 0.00748 PB ND (0.005) ND (0.005) 0.00355 AG, J 0.01103 2.90

10 Below Area 28 SW-10-073014 0.00692 PB ND (0.005) ND (0.005) 0.00406 AG, J 0.01098 3.37

11U Above Confluence with Nassau Lake SW-11U-073014 0.00552 PB ND (0.005) ND (0.005) 0.00465 AG, J 0.01017 3.80

Notes:




10. AF = Aroclor 1254 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern11. AG = Aroclor 1260 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern12. [ ] = The associated value in the [ ] is a blind duplicate

Tributary T11A

Valatie Kill


8. J = Denotes an estimated concentration and the concentration result is greater than or equal to the Method Detection Limit (MDL) but less than the PQL9. PB = Aroclor 1221 is being used to report an altered PCB pattern exhibited by the sample and actual Aroclor 1221 is not present in the sample, but is reported to more accurately quantify PCB present in sample that has undergone environmental alteration


Body






AR 1221 AR 1248 AR 1254 AR 1260 Total







Background Sample LocationSW-06-102414 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) 2.37

7UU Above Sample Location 7U SW-7UU-102414 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) 1.90

7U Above Confluence with Tributary T11A SW-07U-102414 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) 1.56

7 Below Confluence with Tributary T11A SW-07-102414 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) 1.58

7D Below Sample Location 7 SW-07D-102414 ND (0.005) ND (0.005) ND (0.005) 0.00276 AG, J 0.00276 2.30

8 Above Area 28 SW-08-102414 ND (0.005) ND (0.005) ND (0.005) 0.00397 AG, J 0.00397 J 1.40

9 Area 28SW-09-102414

[SW-DUP-102414]ND (0.005)[ND (0.005)]

ND (0.005)[ND (0.005)]

ND (0.005)[ND (0.005)]

0.00412 AG, J[0.00362 AG, J]

0.00412 J[0.00362 J]

2.10[1.70]



Notes:




9. AG = Aroclor 1260 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern10. [ ] = The associated value in the [ ] is a blind duplicate

Tributary T11A

Valatie Kill




Body







3U Above Tributary T11A Upper Third SW-03U-(date) 0.0086 AG 0.0139 J 0.0142 AG 0.0203 J 0.00712 AG 0.01341 J

3 Upper Third of Tributary T11A SW-03-(date) 0.0619 AG 0.09669 J0.0477 AG

[0.0511 AG] 0.08143 J

[0.08412 J]0.188 AG 0.2375

4 Middle Third of Tributary T11A SW-04-(date) 0.0746 AG 0.13079 J 0.111 AG 0.18044 J 0.0878 AG 0.16818 J

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-(date) 0.0624 AG 0.1117 J 0.0892 AG 0.13991 J 0.149 AG 0.191

5 Lower Third of Tributary T11A SW-05-(date) 0.0876 AG 0.13907 J 0.0796 AG 0.12303 J 0.0567 AG 0.10133


Background Sample LocationSW-06-(date) ND (0.005) 0.00621 ND (0.005) 0.0018 J ND (0.005) 0.00552

7UU Above Sample Location 7U SW-07UU-(date) ND (0.005) 0.00548 ND (0.005) 0.00291 J ND (0.005) 0.00915

7U Above Confluence with Tributary T11A SW-07U-(date) ND (0.005) 0.00608 ND (0.005) 0.00203 J ND (0.005) 0.00739

7 Below Confluence with Tributary T11A SW-07-(date) 0.00562 AG 0.01461 J 0.00281 AG, J 0.00523 J 0.0042 AG, J 0.01369 J

7D Below Sample Location 7 SW-07D-(date)0.00379 AG, J [0.0027 AG, J]

0.01281 J [0.01578 J]

0.00418 AG, J 0.00901 J 0.0048 AG, J 0.0152 J

8 Above Area 28 SW-08-(date) 0.00332 AG, J 0.01227 J 0.00582 AG 0.00856 J 0.00224 AG, J 0.00907 J

9 Area 28 SW-09-(date) 0.00557 AG 0.01677 0.00507 AG 0.00799 J 0.00291 AG, J 0.01079 J

10 Below Area 28 SW-10-(date) 0.0074 AG 0.0208 0.00667 AG 0.01054 J 0.00352 AG, J 0.013 J

11U Above Confluence with Nassau Lake SW-11U-(date) 0.00381 AG, J 0.01461 J 0.00485 AG, J 0.0074 J0.00683 AG

[0.00572 AG]0.01196 J

[0.00994 J]

Notes:

1. SW = Surface water2. PCBs = Polychlorinated biphenyls3. µg/L = Micrograms per liter4. AR 1260 = Aroclor 1260 (Aroclors 1221, 1248 and/or 1254 were also detected in some samples)

8. [ ] = The associated value in the [ ] is a blind duplicate9. All samples were collected by ARCADIS and analyzed by Pace Analytical Services, Inc.

6. J = Denotes an estimated concentration and the concentration result is greater than or equal to the Method Detection Limit (MDL) but less than the PQL7. AG = Aroclor 1260 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern

8/21/20137/25/2013

Tributary T11A

Total PCBs (µg/L)


Surface Water Body


Sample Description Sample Identification 6/24/2013

Valatie Kill

SW 2013 2131212161.xlsx Page 1 of 1



AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-062413 0.00241 PB, J ND (0.005) 0.00289 AF, J 0.0086 AG 0.0139 J 5.00

3 Upper Third of Tributary T11A SW-03-062413 0.00179 PB, J 0.0125 PE 0.0205 AF 0.0619 AG 0.09669 J 12.1

4 Middle Third of Tributary T11A SW-04-062413 0.00479 PB, J 0.0185 PE 0.0329 AF 0.0746 AG 0.13079 J 3.70

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-062413 0.0042 PB, J 0.0167 PE 0.0284 AF 0.0624 AG 0.1117 J 2.42

5 Lower Third of Tributary T11A SW-05-062413 0.00347 PB, J 0.0155 PE 0.0325 AF 0.0876 AG 0.13907 J 3.90


Background Sample LocationSW-06-062413 0.00621 PB ND (0.005) ND (0.005) ND (0.005) 0.00621 1.30



7 Below Confluence with Tributary T11A SW-07-062413 0.00709 PB ND (0.005) 0.0019 AF, J 0.00562 AG 0.01461 J 1.00


[SW-DUP-062413]0.00902 PB [0.0118 PB]

ND (0.005) [ND (0.005)]

ND (0.005) [0.00128 AF, J]

0.00379 AG, J [0.0027 AG, J]

0.01281 J [0.01578 J]

1.10 [1.10]

8 Above Area 28 SW-08-062413 0.00895 PB ND (0.005) ND (0.005) 0.00332 AG, J 0.01227 J ND (1.00)

9 Area 28 SW-09-062413 0.0112 PB ND (0.005) ND (0.005) 0.00557 AG 0.01677 ND (1.05)

10 Below Area 28 SW-10-062413 0.0134 PB ND (0.005) ND (0.005) 0.0074 AG 0.0208 1.30

11U Above Confluence with Nassau Lake SW-11U-062413 0.0108 PB ND (0.005) ND (0.005) 0.00381 AG, J 0.01461 J 2.00

Notes:

1. SW = Surface water2. PCBs = Polychlorinated biphenyls3. TSS = Total suspended solids4. µg/L = Micrograms per liter5. mg/L = Milligrams per liter6. AR 1260 = Aroclor 1260 (Aroclors 1221, 1248 and/or 1254 were also detected in some samples)7. ND (0.005) = The compound was analyzed for but not detected and the associated numerical value in ( ) is the practical quantization limit (PQL)



Surface Water Body




11. AF = Aroclor 1254 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern12. AG = Aroclor 1260 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern

10. PE = Aroclor 1248 is being used to report an altered PCB pattern exhibited by the sample and actual Aroclor 1248 is not present in the sample, but is reported to more accurately quantify PCB present in sample that has undergone environmental alteration

TSS (mg/L)

Tributary T11A

Valatie Kill

9. PB = Aroclor 1221 is being used to report an altered PCB pattern exhibited by the sample and actual Aroclor 1221 is not present in the sample, but is reported to more accurately quantify PCB present in sample that has undergone environme

SW 2013 2131212161.xlsx Page 1 of 1



AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-072513 0.00176 PB, J ND (0.005) 0.00434 AF, J 0.0142 AG 0.0203 J 200

3 Upper Third of Tributary T11ASW-03-072513

[SW-DUP-072513]0.00403 PB, J [0.00302 PB, J]

0.0111 PE [0.0103 PE]

0.0186 AF [0.0197 AF]

0.0477 AG [0.0511 AG]

0.08143 J[0.08412 J]

3.60 [3.90]


5U Between Middle and Lower Thirds of Tributary T11A SW-05U-072513 0.00301 PB, J 0.0149 PE 0.0328 AF 0.0892 AG 0.13991 J 6.60

5 Lower Third of Tributary T11A SW-05-072513 0.00223 PB, J 0.0124 PE 0.0288 AF 0.0796 AG 0.12303 J 6.70


Background Sample LocationSW-06-072513 0.0018 PB, J ND (0.005) ND (0.005) ND (0.005) 0.0018 J 3.10

7UU Above Sample Location 7U SW-07UU-072513 0.00291 PB, J ND (0.005) ND (0.005) ND (0.005) 0.00291 J 2.90

7U Above Confluence with Tributary T11A SW-07U-072513 0.00203 PB, J ND (0.005) ND (0.005) ND (0.005) 0.00203 J 5.10

7 Below Confluence with Tributary T11A SW-07-072513 0.00242 PB, J ND (0.005) ND (0.005) 0.00281 AG, J 0.00523 J 3.20

7D Below Sample Location 7 SW-07D-072513 0.00483 PB, J ND (0.005) ND (0.005) 0.00418 AG, J 0.00901 J 3.40

8 Above Area 28 SW-08-072513 0.00274 PB, J ND (0.005) ND (0.005) 0.00582 AG 0.00856 J 3.70

9 Area 28 SW-09-072513 0.00292 PB, J ND (0.005) ND (0.005) 0.00507 AG 0.00799 J 3.50

10 Below Area 28 SW-10-072513 0.00387 PB, J ND (0.005) ND (0.005) 0.00667 AG 0.01054 J 3.60

11U Above Confluence with Nassau Lake SW-11U-072513 0.00255 PB, J ND (0.005) ND (0.005) 0.00485 AG, J 0.0074 J 2.60

Notes:




12. AG = Aroclor 1260 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern13. [ ] = The associated value in the [ ] is a blind duplicate

TSS (mg/L)


Surface Water Body



Tributary T11A

Valatie Kill


10. PE = Aroclor 1248 is being used to report an altered PCB pattern exhibited by the sample and actual Aroclor 1248 is not present in the sample, but is reported to more accurately quantify PCB present in sample that has undergone environmental alteration11. AF = Aroclor 1254 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern


SW 2013 2131212161.xlsx Page 1 of 1

Table 4Surface Water Monitoring - August 21, 2013


AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-082113 0.00113 PB, J 0.00250 PE, J 0.00266 AF, J, P 0.00712 AG 0.01341 J 3.30

3 Upper Third of Tributary T11A SW-03-082113 ND (0.020) ND (0.020) 0.0495 AF 0.188 AG 0.2375 7.20


5U Between Middle and Lower Thirds of Tributary T11A SW-05U-082113 ND (0.015) ND (0.015) 0.042 AF 0.149 AG 0.191 6.00

5 Lower Third of Tributary T11A SW-05-082113 0.00523 PB 0.0126 PE 0.0268 AF 0.0567 AG 0.10133 6.00


Background Sample LocationSW-06-082113 0.00552 PB ND (0.005) ND (0.005) ND (0.005) 0.00552 ND (1.00)



7 Below Confluence with Tributary T11A SW-07-082113 0.0064 PB 0.00144 PE, J 0.00165 AF, J 0.0042 AG, J 0.01369 J ND (1.00)

7D Below Sample Location 7 SW-07D-082113 0.0104 PB ND (0.005) ND (0.005) 0.0048 AG, J 0.0152 J ND (1.00)

8 Above Area 28 SW-08-082113 0.00683 PB ND (0.005) ND (0.005) 0.00224 AG, J 0.00907 J ND (1.00)

9 Area 28 SW-09-082113 0.00788 PB ND (0.005) ND (0.005) 0.00291 AG, J 0.01079 J ND (1.00)

10 Below Area 28 SW-10-082113 0.00948 PB ND (0.005) ND (0.005) 0.00352 AG, J 0.013 J ND (1.00)

11U Above Confluence with Nassau LakeSW-11U-082113

[SW-DUP-082113]0.00306 PB, J [0.00188 PB, J]

ND (0.005) [ND(0.005)]

0.00207 AF, J [0.00234 AF, J]

0.00683 AG [0.00572 AG]

0.01196 J [0.00994 J]

4.90 [5.20]

Notes:



9. P = Indicates relative percent difference (RPD) between primary and secondary gas chromatography (GC) column analysis exceeds 40%


TSS (mg/L)

Tributary T11A

Valatie Kill



Surface Water Body



11. PE = Aroclor 1248 is being used to report an altered PCB pattern exhibited by the sample and actual Aroclor 1248 is not present in the sample, but is reported to more accurately quantify PCB present in sample that has undergone environmental alteration12. AF = Aroclor 1254 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern13. AG = Aroclor 1260 is being reported as best Aroclor match but the sample exhibits an altered PCB pattern14. [ ] = The associated value in the [ ] is a blind duplicate


SW 2013 2131212161.xlsx Page 1 of 1



2131212161.xlsx Page 1 of 1


3U Above Tributary T11A Upper Third SW-03U-(date) 0.00711 0.00916 0.00902 [0.00890] 0.01477 [0.01657] 0.00584 0.01211

3 Upper Third of Tributary T11A SW-03-(date) 0.0351 0.05205 0.0405 0.06120 0.183 0.23404

4 Middle Third of Tributary T11A SW-04-(date) 0.114 0.1640 0.114 0.15865 0.0427 0.06632

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-(date) 0.175 0.2559 0.0654 0.09757 0.0657 0.09071

5 Lower Third of Tributary T11A SW-05-(date) 0.0982 0.1443 0.0588 0.08558 0.0674 0.09429


Background Sample LocationSW-06-(date) ND (0.005) 0.00600 ND (0.005) 0.00581 ND (0.005) 0.00500

7U Above Confluence with Tributary T11A SW-07U-(date) ND (0.005) 0.00686 ND (0.005) 0.01387 ND (0.005) 0.00919

7 Below Confluence with Tributary T11A SW-07-(date) ND (0.005) 0.00551 0.0108 0.01972 0.00241 [0.00326] 0.01113 [0.01345]

8 Above Area 28 SW-08-(date) 0.00319 [0.00273] 0.01579 [0.01250] 0.00356 0.01461 0.00267 0.01210

9 Area 28 SW-09-(date) 0.00315 0.01655 0.00403 0.02006 0.00245 0.00977

10 Below Area 28 SW-10-(date) 0.00444 0.01874 0.00818 0.01853 0.00282 0.00986

11U Above Confluence with Nassau Lake SW-11U-(date) 0.00266 0.01229 0.00433 0.01710 0.00217 0.01065

Notes:






7. All samples were collected by ARCADIS and analyzed by Pace

6/7/2012


Valatie Kill

Tributary T11A

Surface Water Body

Total PCBs (µg/L)

Sample IdentificationSample

Location Number

Sample Description 10/5/2012 11/1/2012



AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-060712 ND (0.005) ND (0.005) 0.00205 0.00711 0.00916

3 Upper Third of Tributary T11A SW-03-060712 0.00315 ND (0.005) 0.0138 0.0351 0.05205

4 Middle Third of Tributary T11A SW-04-060712 ND (0.015) 0.0147 0.0353 0.114 0.1640

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-060712 ND (0.020) 0.0304 0.0505 0.175 0.2559

5 Lower Third of Tributary T11A SW-05-060712 ND (0.010) 0.0151 0.0310 0.0982 0.1443


Background Sample LocationSW-06-060712 0.00600 ND (0.005) ND (0.005) ND (0.005) 0.00600

7U Above Confluence with Tributary T11A SW-07U-060712 0.00686 ND (0.005) ND (0.005) ND (0.005) 0.00686

7 Below Confluence with Tributary T11A SW-07-060712 0.00551 ND (0.005) ND (0.005) ND (0.005) 0.00551


[SW-DUP-060712]0.0126 [0.00977] ND (0.005) [ND(0.005)] ND (0.005) [ND(0.005)] 0.00319 [0.00273] 0.01579 [0.01250]

9 Area 28 SW-09-060712 0.0134 ND (0.005) ND (0.005) 0.00315 0.01655

10 Below Area 28 SW-10-060712 0.0143 ND (0.005) ND (0.005) 0.00444 0.01874

11U Above Confluence with Nassau Lake SW-11U-060712 0.00963 ND (0.005) ND (0.005) 0.00266 0.01229

Notes:







Valatie Kill



Surface Water Body



Tributary T11A

2131212161.xls Page 1 of 1



AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-100512

[SW-DUP-100512]0.00201 [0.00258] 0.00374 [0.00509] ND (0.005) [ND(0.005)] 0.00902 [0.00890] 0.01477 [0.01657]


4 Middle Third of Tributary T11A SW-04-100512 0.00345 ND (0.010) 0.0412 0.114 0.15865

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-100512 0.00457 ND (0.005) 0.0276 0.0654 0.09757

5 Lower Third of Tributary T11A SW-05-100512 0.00348 ND (0.005) 0.0233 0.0588 0.08558


Background Sample LocationSW-06-100512 0.00408 0.00173 ND (0.005) ND (0.005) 0.00581


7 Below Confluence with Tributary T11A SW-07-100512 0.00473 0.00419 ND (0.005) 0.0108 0.01972

8 Above Area 28 SW-08-100512 0.00766 0.00339 ND (0.005) 0.00356 0.01461

9 Area 28 SW-09-100512 0.0104 0.00563 ND (0.005) 0.00403 0.02006

10 Below Area 28 SW-10-100512 0.00740 0.00295 ND (0.005) 0.00818 0.01853

11U Above Confluence with Nassau Lake SW-11U-100512 0.0102 0.00257 ND (0.005) 0.00433 0.01710

Notes:




4. AR 1260 = Aroclor 1260 (Aroclors 1221, 1242, 1248 and/or 1254 were also detected in some samples)

5. Sample SW-07U-100512 also contained AR 1242 at 0.00654 µg/L



Sample IdentificationTotal PCBs (µg/L)


8. Measured flow rate for the Valatie Kill was 10 cubic feet per second (cfs)

Valatie Kill

Tributary T11A

Surface Water Body


Sample Description

2131212161.xls Page 1 of 1



AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-110112 0.00428 ND (0.005) 0.00199 0.00584 0.01211


4 Middle Third of Tributary T11A SW-04-110112 0.00422 ND (0.005) 0.0194 0.0427 0.06632

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-110112 0.00161 ND (0.005) 0.0234 0.0657 0.09071

5 Lower Third of Tributary T11A SW-05-110112 0.00319 ND (0.005) 0.0237 0.0674 0.09429


Background Sample LocationSW-06-110112 0.00500 ND (0.005) ND (0.005) ND (0.005) 0.00500


7 Below Confluence with Tributary T11ASW-07-110212

[SW-DUP-110112]0.00872 [0.00816] ND (0.005) [ND(0.005)] ND (0.005) [0.00203] 0.00241 [0.00326] 0.01113 [0.01345]

8 Above Area 28 SW-08-110112 0.00753 0.00190 ND (0.005) 0.00267 0.01210

9 Area 28 SW-09-110112 0.00732 ND (0.005) ND (0.005) 0.00245 0.00977



Notes:







Valatie Kill



Surface Water Body



Tributary T11A

2131212161.xls Page 1 of 1




3U Above Tributary T11A Upper Third SW-03U-(date) 0.00747 0.00747 0.0168 0.02191 0.00463 J [0.00476 J] 0.00884 J [0.00786 J]

3 Upper Third of Tributary T11A SW-03-(date) 0.0499 0.062 0.405 0.5656 0.0333 0.05081 J

4 Middle Third of Tributary T11A SW-04-(date) 0.0558 0.08247 0.054 0.1277 0.0544 0.07198 J

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-(date) NS NS 0.0442 0.0593 0.0631 0.0782

5 Lower Third of Tributary T11A SW-05-(date) 0.202 0.2319 0.243 0.2781 0.408 0.408


Background Sample LocationSW-06-(date) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005)

7U Above Confluence with Tributary T11A SW-07U-(date) ND (0.005) 0.00747 ND (0.005) 0.00773 ND (0.005) 0.00469 J

7 Below Confluence with Tributary T11A SW-07-(date) ND (0.005) 0.00705 ND (0.005) 0.0111 0.00213 J 0.00724 J

8 Above Area 28 SW-08-(date) 0.00527 0.01547 0.00527 [0.00495 J] 0.01777 [0.01545 J] 0.00373 J 0.00844 J

9 Area 28 SW-09-(date) 0.00573 0.01903 0.00598 0.02048 0.00359 J 0.01024 J

10 Below Area 28 SW-10-(date) 0.00628 0.02088 0.00589 0.02229 0.00356 J 0.01026 J

11U Above Confluence with Nassau Lake SW-11U-(date) 0.00643 [0.00675] 0.01773 [0.01576] 0.00612 0.01622 0.00294 J 0.00679 J

Notes:





5. NS = Not sampled


9. All samples were collected by ARCADIS and analyzed by NEA - A Division of Pace Analytical Services

6. ND (0.005) = The compound was analyzed for but not detected and the associated numerical value in ( ) is the laboratory reported Practical Quantitation Limit (PQL)

7. J = Denotes an estimated concentration and the concentration result is greater than or equal to the Method Detection Limit (MDL) but less than the laboratory reported PQL

Sample

Location

Number

Sample Description 7/29/2011 9/13/2011

Valatie Kill

Tributary T11A

Surface Water

Body

PCBs (µg/L)

Sample Identification 7/6/2011

3171112161.xls Page 1 of 1



AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-070611 ND (0.00515) ND (0.00515) ND (0.00515) 0.00747 0.00747

3 Upper Third of Tributary T11A SW-03-070611 ND (0.005) 0.0121 ND (0.005) 0.0499 0.062

4 Middle Third of Tributary T11A SW-04-070611 0.00927 0.0174 ND (0.005) 0.0558 0.08247

5 Lower Third of Tributary T11A SW-05-070611 ND (0.020) 0.0299 ND (0.020) 0.202 0.2319


Background Sample LocationSW-06-070611 ND (0.005) ND (0.005) ND (0.005) ND (0.005) ND (0.005)



8 Above Area 28 SW-08-070611 0.0102 ND (0.005) ND (0.005) 0.00527 0.01547

9 Area 28 SW-09-070611 0.0133 ND (0.005) ND (0.005) 0.00573 0.01903


11U Above Confluence with Nassau LakeSW-11U-070611

[SW-DUP-070611]0.0113 [0.00901] ND (0.005) [ND (0.005)] ND (0.005) [ND (0.005)] 0.00643 [0.00675] 0.01773 [0.01576]

Notes:




4. AR 1221 = Aroclor 1221 (similar abbreviations for AR 1248, AR 1254, and AR 1260)



Sample IdentificationPCBs (µg/L)


Valatie Kill

Tributary T11A

Surface Water

Body

Sample

Location

Number

Sample Description


3171112161.xls Page 1 of 1



AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper Third SW-03U-072911 ND (0.005) ND (0.005) 0.00511 0.0168 0.02191

3 Upper Third of Tributary T11A SW-03-072911 ND (0.040) 0.0526 0.108 0.405 0.5656

4 Middle Third of Tributary T11A SW-04-072911 0.0163 0.0195 0.0379 0.054 0.1277

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-072911 ND (0.005) ND (0.005) 0.0151 0.0442 0.0593

5 Lower Third of Tributary T11A SW-05-072911 ND (0.025) 0.0351 ND (0.025) 0.243 0.2781






[SW-DUP-072911]0.0125 [0.0105] ND (0.005) [ND (0.005)] ND (0.005) [ND (0.005)] 0.00527 [0.00495 J] 0.01777 [0.01545 J]

9 Area 28 SW-09-072911 0.0145 ND (0.005) ND (0.005) 0.00598 0.02048



Notes:










Surface Water

Body

Sample

Location

Number

Sample Description Sample IdentificationPCBs (µg/L)

Tributary T11A

Valatie Kill

3171112161.xls Page 1 of 1

Table 4Surface Water Monitoring - September 13, 2011


AR 1221 AR 1248 AR 1254 AR 1260 Total

3U Above Tributary T11A Upper ThirdSW-03U-091311

[SW-DUP-091311]0.00213 J [0.00143 J] ND (0.005) [ND (0.005)] 0.00208 J [0.00167 J] 0.00463 J [0.00476 J] 0.00884 J [0.00786 J]

3 Upper Third of Tributary T11A SW-03-091311 0.00421 J ND (0.005) 0.0133 0.0333 0.05081 J

4 Middle Third of Tributary T11A SW-04-091311 0.00458 J 0.013 ND (0.005) 0.0544 0.07198 J

5U Between Middle and Lower Thirds of Tributary T11A SW-05U-091311 ND (0.005) 0.0151 ND (0.005) 0.0631 0.0782

5 Lower Third of Tributary T11A SW-05-091311 ND (0.025) ND (0.025) ND (0.025) 0.408 0.408



7U Above Confluence with Tributary T11A SW-07U-091311 0.00249 J ND (0.005) 0.00220 J ND (0.005) 0.00469 J

7 Below Confluence with Tributary T11A SW-07-091311 0.00379 J ND (0.005) 0.00132 J 0.00213 J 0.00724 J

8 Above Area 28 SW-08-091311 0.00334 J ND (0.005) 0.00137 J 0.00373 J 0.00844 J

9 Area 28 SW-09-091311 0.0054 ND (0.005) 0.00125 J 0.00359 J 0.01024 J

10 Below Area 28 SW-10-091311 0.00356 J 0.00314 J ND (0.005) 0.00356 J 0.01026 J

11U Above Confluence with Nassau Lake SW-11U-091311 0.00385 J ND (0.005) ND (0.005) 0.00294 J 0.00679 J

Notes:









Valatie Kill


Surface Water

Body

Sample

Location

Number

Sample Description Sample IdentificationPCBs (µg/L)

Tributary T11A

3171112161.xls Page 1 of 1

surface water sampling in tributary t11a and the …

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