Status Report on PFOA 

Emissions Reductions and

Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

Date: September 2012 Project No.: 18986208.12001

URS Corporation

DuPont Chambers Works 

Route 130 and Canal Road

Deepwater, New Jersey 08023
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Table of Contents

StatusReportonPFOA2011-091212.doc i

Deepwater, NJ

Table of Contents

1.0 Introduction.................................................................................................................1

2.0 Site Setting at Chambers Works.................................................................................3

3.0 Data Analysis..............................................................................................................4

4.0 Site Wastewater Treatment System Sampling and Results........................................5

4.1 Sample Collection..............................................................................................5

4.2 Data Quality.......................................................................................................5

4.3 Chambers Works Wastewater Sampling Results...............................................5

5.0 Salem Canal Surface Water Sampling........................................................................7

5.1.1 Sample Collection ................................................................................7

5.1.2 Data Quality .........................................................................................7

5.1.3 Salem Canal Results.............................................................................7

6.0 Sanitary Water ............................................................................................................8

6.1.1 Sample Collection ................................................................................8

6.1.2 Data Quality .........................................................................................8

6.1.3 Results..................................................................................................8

7.0 References...................................................................................................................9

Figures

Figure 1 Site Location Map

Figure 2 662 Sample Location

Figure 3 662 Monthly Average for 2005 thru 2011 (lbs./day)

Figure 4 662 Monthly Average for 2011 (lbs./day)

Figure 5 Salem Canal Surface Water Sample Locations

Figure 6 Sanitary Water Sample Location 

Tables

Table 1 Average Monthly PFOA Concentrations and Mass Loadings

Table 2 Surface Water Sampling Results

Table 3 Sanitary Water Sampling Results

Appendices

Appendix A Summary of PFOA Results at 662 January – December 2011
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Introduction

StatusReportonPFOA2011-091212.doc 1

Wilmington, DE

1.0 Introduction

The DuPont Chambers Works manufacturing complex (site) in Salem County, New 

Jersey has been reducing emissions of perfluorooctanoic acid (PFOA) to the environment 

through process improvements and source elimination. In 2003, a comprehensive study 

on the environmental emissions from Chambers Works was conducted as part of a 

voluntary Letter of Intent (LOI) submitted by the Telomer Research Program to the 

United States Environmental Protection Agency (USEPA). The results of this study were 

reported to NJDEP and USEPA in the DuPont Telomer Manufacturing Sites: 

Environmental Assessment of PFOA Levels in Air and Water, September 2003 (DuPont, 

2003). The study assessed surface-water emissions to the Delaware River, conducted air 

dispersion modeling of potential sources, and assessed levels in groundwater and surface 

waters adjacent to the site.

The 2003 report evaluated the results of the study using the West Virginia Screening 

Levels as established by the C8 Assessment of Toxicity Team (CATT) (West Virginia 

Department of Environmental Protection). The report showed that surface water and 

calculated fenceline air concentrations were well below the CATT established screening 

levels.

In January 2005, Chambers Works implemented a sampling program to measure the 

effectiveness of the reduction efforts and to identify program areas that need additional 

focus. The focus of the sampling program was on wastewater emissions. 

In January 2006, DuPont committed to participate in the EPA 2010/15 PFOA 

Stewardship Program. Chambers Works is an important part of the DuPont commitment 

to reduce emissions of PFOA globally.

In 2007, Chambers Works continued their emission reduction program resulting in a 95% 

reduction in PFOA emissions from the site since 2000.

In 2008, Chambers Works continued to reduce emissions by implementing multiple

reduction programs resulting in a >97% reduction since 2000. 

Continuing through 2011, DuPont has maintained their commitment to reduce emissions. 

The sampling program has identified emissions at the process level. After investigating 

these sources, DuPont was able to limit or further reduce sources that enter the 

wastewater stream by implementing process modifications and updating operating 

procedures, resulting in a 99% reduction since 2000.

This data report compiles the data collected and summarizes data trends at the primary 

NJPDES permitted outfall DSN662.

Ongoing investigations were conducted on the Salem Canal and plant sanitary water. 

Data for these investigations are also reported here. This data report includes the 

following sections:

 Section 2.0 presents the site setting at Chambers Works.

 Section 3.0 presents the data analysis.
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Introduction

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 Section 4.0 presents the wastewater treatment system sampling and results.

 Section 5.0 presents the Salem Canal sampling and results.

 Section 6.0 presents the sanitary water sampling and results.
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Site Setting at Chambers Works

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2.0 Site Setting at Chambers Works

DuPont Chambers Works, located in Deepwater, New Jersey near the Delaware 

Memorial Bridge, has manufactured a variety of industrial compounds over the past 95 

years (see Figure 1). Today the site produces approximately 400 different products. The 

manufacturing site is approximately 600 acres, bounded by a non-manufacturing area

which includes a DuPont owned and maintained wildlife habitat to the north, the

Delaware River to the west, the Salem Canal to the south, and the Deepwater community 

to the east.

Since the 1970s the site has operated a groundwater containment system. The most 

significant portion of the groundwater containment system is the Interceptor Well System 

(IWS) that withdraws a monthly daily average of at least 1.0 million gallons of 

groundwater from the underlying aquifers and pumps the water to the site wastewater 

treatment plant (WWTP) for treatment. The interceptor well system maintains an inward 

hydraulic gradient over most of the site to prevent off-site migration of groundwater. As 

demonstrated by over twenty years of compliance monitoring under a NJPDES Discharge 

to Ground Water permit, operation of the interceptor well system ensures that 

groundwater on the site does not flow toward public-water supply wells in the region.

PFOA is associated with the following process areas at the site:

 Fluoroelastomers (DPP): PFOA is used as a polymerization aid in the 

manufacture of perfluoroelastomers. In 2001, the use of PFOA in the standard 

fluoroelastomers was discontinued, and in 2004, a carbon treatment system was 

installed to treat washwaters and process cleanouts for the specialty 

fluoroelastomer and perfluoroelastomer manufacturing process.

 Fluorotelomers: PFOA is present in trace quantities as an unintended by-product 

in portions of the fluorotelomer manufacturing process. Fluorotelomer chemistry 

is not made with PFOA, nor is PFOA added during fluorotelomer manufacture.

The presence of PFOA in fluorotelomer intermediates, while low, is highly 

variable from not-quantifiable to parts per million.

 Chambers Works WWTP: PFOA is present in trace quantities in some 

commercial wastewater streams. PFOA continues to be used as a processing aid 

by industry and can also be present as an unintended by-product in other waste 

streams. PFOA was widely used in commercial products by some companies. A 

summary of the different sources and uses of PFOA can be found in Prevedouros, 

et al. (2006). In addition, PFOA is present in wastewaters from the Chambers 

Works on-site landfill leachate and groundwater treatment system.

Since 2003, many PFOA containing wastewater streams to the WWTP have been 

eliminated through treatment at the generation site or by finding an alternative 

treatment.

 The on-site Leveraged Analytical Services (LAS) processes some samples 

containing PFOA for analytical purposes.
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Data Analysis

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3.0 Data Analysis

Analysis of PFOA in waste water was performed by the on-site DuPont Leveraged

Analytical Services (formerly RAS), TestAmerica – Denver (TA- Denver), formerly 

STL- Denver; Axys Analytical, Critical Path Services (CP); and MPI Research Inc. 

(formerly Exygen Research, Inc.) according to a laboratory Standard Operating 

Procedure (SOP). The analytical method utilizes a Liquid Chromatography/Tandem Mass 

Spectrometry (LC/MS/MS). 

The analytical methodology for Chambers Works wastewater was updated in March 2006 

(due to differences between MPI Research Inc. and DuPont LAS) and June 2007 (to 

decrease sample run time by taking advantage of new “rapid resolution” columns from 

Agilent Technologies). Data collected prior to March 2006 employed a methodology 

typically used for the analysis of PFOA in drinking water. However, due to the complex 

matrix of the various Chambers Works wastewater streams, a more robust method was 

developed. Upgrades in March 2006 include a longer gradient to allow for better 

separation, use of an internal standard (dual-labeled 13C PFOA, M+2) to compensate for 

matrix effects, and a higher column temperature to increase peak resolution. Upgrades 

made in June 2007 include the use of a shorter method and a rapid resolution column.

This method has the same resolution as the old method and is cross validated by using a 

3 x 3 x 3 matrix.

This method has been validated for the Chambers Works wastewater samples. The 

validation of the PFOA data is performed by a group of chemists who verify that hold 

times, matrix spikes, and all lab quality controls are followed. The data is then certified 

and entered into an electronic database.

The PFOA results in wastewater are presented in this report for comparison purposes and 

are believed to be adequate for showing overall PFOA emission reductions. The LAS

data has been used for all 2011 wastewater calculations of sample Spot 662 in this report.

Samples from the sanitary water were analyzed by MPI Research Inc. The Canal Intake

samples were analyzed by TA- Denver. The weekly 662-GRAB sample was analyzed by 

CP.

All samples were collected and analyzed according to the DuPont Quality Assurance 

Project Plan (QAPP) with Sampling and Analysis Plan (SAP) submitted in Appendix A 

of the Status Report on PFOA Emissions Reductions and Data Summary for 2007, 

(DuPont, 2008). 
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Site Wastewater Treatment System Sampling and Results

StatusReportonPFOA2011-091212.doc 5

Wilmington, DE

4.0 Site Wastewater Treatment System Sampling and 

Results

4.1 Sample Collection

The focus of this sampling program is to measure wastewater emissions from the site.

The Chambers Works primary outfall consists of two NJPDES monitored discharge 

locations (Permit No. NJ0005100). DSN001 measures the combination of the effluent 

from the WWTP (DSN662), non-process area site stormwater, and non-contact cooling 

water. In September 2011, a new outfall location, DSN002, was put into service, 

replacing DSN001. DSN001 is now used only for stormwater per the recently renewed 

NJPDES permit. DSN662 (662) measures only treated effluent from the WWTP (see 

Figure 2). 

DSN662 has been previously shown to be statistically equivalent to DSN001 (DuPont,

2006). A second check was conducted in May 2007 to confirm that the two outfalls were 

statistically equivalent. Results from 662 are currently used to represent Chambers Works 

total wastewater emissions.

In 2011, the sampling program for PFOA at the site was to collect three samples a week;

two 48 hour composite samples and a 72 hour composite sample while still collecting one 

grab sample every Monday. This 48, 48, 72 hour schedule enabled DuPont to pinpoint

and understand process related spikes to identify the low-level sources of PFOA to 

wastewater at the process level, which helped in reduction efforts.

4.2 Data Quality

Sample location 662 is a NJPDES permitted monitoring location. Sample collection was 

straightforward and consistently achieved. Furthermore, accurate flow measurements can 

be recorded and are used to calculate lbs/day discharge rates.

All samples were collected, analyzed, and validated according to the QAPP/ SAP. 

At sample locations upstream of 662, particularly those associated with regional tanks, it 

was, at times, more difficult to obtain a representative sample. The data from these 

internal locations were used for qualitative comparisons on relative contributions from 

the area. The data from the internal locations was not accurate enough for quantitative 

assessments. This upstream data is used strictly for internal evaluation and review and 

therefore not included in this report, but will be available upon request.

4.3 Chambers Works Wastewater Sampling Results

Table 1 shows the average monthly PFOA concentrations at 662 for the study period. The 

data presented from January 2006 to December 2011 is the calculated average monthly 

value based on 662 concentration measurements. The estimated mass loadings are based 

on the 662 flow measurements.
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Site Wastewater Treatment System Sampling and Results

StatusReportonPFOA2011-091212.doc 6

Wilmington, DE

As shown in Table 1, average daily discharge of PFOA from Chambers Works 

wastewater treatment plant decreased significantly from 2006 to 2011. The actual average 

daily discharge in 2011 was 0.68 lbs./day.

Figure 3 shows the reduction in lbs./day from 2006 thru 2011. This figure shows the

lbs/day discharge rates of 0.68 lbs./day. 

Figure 4 plots the monthly average PFOA concentrations at 662 for 2011. The actual 

2011 discharge is 245.7 lbs./year. 

The 662 data tables are located in Appendix A.
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Salem Canal Surface Water Sampling

StatusReportonPFOA2011-091212.doc 7

Wilmington, DE

5.0 Salem Canal Surface Water Sampling

5.1.1 Sample Collection

Quarterly samples were collected to track PFOA in the plant intake. Samples were 

collected from the plant intake (Canal Intake) as shown on Figure 5. Samples were 

collected from Canal Intake location by using a programmable sampler (ISCO). The 

sampler is programmed to collect a sample every hour for a 24-hour period on the last 

Friday of the quarter. Four samples were collected and submitted to TA-Denver for 

analysis. 

5.1.2 Data Quality

Sample collection was straightforward and consistently achieved. All samples were 

collected, analyzed, and validated according to the QAPP/ SAP.

Samples from the Canal Intake location were analyzed for PFOA by TA-Denver.

5.1.3 Salem Canal Results

Surface Water Results

Results from the surface water sampling appear in Table 2, and show that during this 

monitoring period, the surface water concentrations of PFOA in the Salem Canal ranged 

from 0.0452 ug/L to 0.0822 ug/L.
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 Sanitary Water

StatusReportonPFOA2011-091212.doc 8

Wilmington, DE

6.0 Sanitary Water

The plant sanitary water supply is pulled from the Salem Canal and treated at the on-site 

water treatment plant (PWS ID #NJ1708300). Water from Salem Canal is treated for 

solids, iron, and bacteria, followed by two beds of granular activated carbon (GAC) in 

series for Trihalomethanes (THM’s) removal prior to distribution to the plant.

6.1.1 Sample Collection

Samples were collected from the after carbon location by using a programmable sampler 

(see Figure 6). The sampler is programmed to collect a sample every hour for a 24-hour 

period. Forty-nine samples were collected and submitted to MPI Research Inc. for 

analysis. Three samples were not collected during the year due to sampler malfunctions,

and frozen sample ports.

6.1.2 Data Quality

Samples from the after carbon location were analyzed for PFOA by MPI Research Inc..

Sample collection was straightforward and consistently achieved. All samples were 

collected, analyzed, and validated according to the QAPP/ SAP. 

6.1.3 Results

Results from sanitary sampling are presented in Table 4. During the 2011 sampling, 

PFOA concentrations in the treated After Carbon samples ranged from ND (0.0018 ug/L)

to 0.074 ug/L. The 2011 average was 0.015 ug/L.
6BStatus Report on PFOA 

Emissions Reductions and Data Summary for 2011 References

StatusReportonPFOA2011-091212.doc 9

Wilmington, DE

7.0 References

DuPont. 2008. PFOA Surface Water Emissions Reductions Status Report and Data 

Summary. May 2007, DuPont CRG Project No. 508501/ 509171-18983843/ 

18985386. June 2008

DuPont. 2007. PFOA Surface Water Emissions Reductions Status Report and Data

Summary. May 2006, DuPont CRG Project No. 508501-18983843. June 2007

DuPont. 2003. DuPont Telomer Manufacturing Sites: Environmental Assessment of 

PFOA Levels in Air and Water, September 2003, DuPont CRG Project No. 

508501-18983843. 2003.

Prevedouros, Konstantinos, Ian T. Cousins, Robert C. Buck, and Stephen Korzeniowski.

2006. Sources, Fate and Transport of Perfluorocarboxylates, Environmental 

Science and Technology, Vol. 40, No. 1., 2006.

West Virginia Department of Environmental Protection. 2002a. C8 Assessment of 

Toxicity Team (CATT) Aquatic Life Advisory concentration for C8, October 

2002.

______. 2002b. Final Ammonium Perfluoroctanoate (C8) Assessment of Toxicity 

(CATT) Report, August 2002.
FIGURES
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U:\Chambers_Works\CAD\Project\18986014 - PFOA Report-2010 (McGee)\Drawings\FIG. 1.dwg, 4/19/2012 1:40:16 PM, DWG To PDF.pc3
Reductions, and Data Summary-2011

Surface Water Emissions

Status Report on PFOA 2 U:\Chambers_Works\CAD\Project\18986014 - PFOA Report-2010 (McGee)\Drawings\FIG. 2.dwg, 5/9/2011 9:25:33 AM, DWG To PDF.pc3
Figure 3

662 Averages by Month (Jan 2006 - Dec 2011)

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

0

1

2

3

4

5

6

7

8

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lbs/day

Month

662 Monthly Average lbs/Day (2006-2011)
Figure 4 – 662 Monthly Average for 2011 (lbs/day)

2011Actual

0.68 lbs/day

245.7 lbs/year
and Data Summary-2011

 PFOA Emissions, Reductions,

Status Report on 5 U:\Chambers_Works\CAD\Project\18986014 - PFOA Report-2010 (McGee)\Drawings\FIG. 6.dwg, 5/9/2011 9:26:38 AM, DWG To PDF.pc3
and Data Summary-2011

 PFOA Emissions, Reductions,

Status Report on 6 U:\Chambers_Works\CAD\Project\18986014 - PFOA Report-2010 (McGee)\Drawings\FIG. 7.dwg, 5/9/2011 9:27:08 AM, DWG To PDF.pc3
TABLES
Table 1

Average Monthly PFOA Concentrations and Mass Loadings

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

DSN662 

Conc.

Estimated 

Mass

DSN662 

Conc.

Estimated 

Mass

ug/L lbs/day ug/L lbs/day

2006 6-Jan 26 3.74 2009 9-Jan 3.5 0.3

6-Feb 27.7 3.15 9-Feb 4.1 0.36

6-Mar 36.2 3.54 9-Mar 4.4 0.36

6-Apr 51 5.51 9-Apr 5.7 0.45

6-May 39 3.29 9-May 8.2 0.69

6-Jun 55.8 4.17 9-Jun 13.4 1.1

6-Jul 40 4.43 9-Jul 10.8 0.8

6-Aug 70 5.62 9-Aug 10.7 0.89

6-Sep 66 7.57 9-Sep 12.5 0.97

6-Oct 58 5.28 9-Oct 14.4 1.25

6-Nov 98 6.76 9-Nov 21.2 1.69*

6-Dec 39 4.1 9-Dec 28.4 2.39*

2007 7-Jan 66.3 6.48 2010 10-Jan 18.08 1.82

7-Feb 56.8 5.39 10-Feb 9.53 0.91

7-Mar 65.3 6.26 10-Mar 14.42 1.33

7-Apr 44.6 4.47 10-Apr 9.59 0.85

7-May 30.9 2.74 10-May 8.75 0.75

7-Jun 41.2 3.59 10-Jun 15 1.17

7-Jul 24.3 2.35 10-Jul 25.35 2.12

7-Aug 31.1 3.01 10-Aug 12.3 0.98

7-Sep 58.1 4.48 10-Sep 10.53 0.87

7-Oct 40.6 3.71 10-Oct 16.94 1.1

7-Nov 20.3 1.9 10-Nov 7.35 0.55

7-Dec 23.5 2.33 10-Dec 18.56 1.47

2008 8-Jan 30.3 3.01 2011 11-Jan 25.29 2.11

8-Feb 41.8 4.2 10-Feb 10.5 0.86

8-Mar 43.1 4.12 10-Mar 10.29 0.84

8-Apr 18.6 1.72 10-Apr 8.41 0.68

8-May 18.1 1.7 10-May 5.72 0.45

8-Jun 30.4 2.87 10-Jun 6.35 0.48

8-Jul 25.1 2.49 10-Jul 4.35 0.35

8-Aug 21.1 1.99 10-Aug 5.05 0.43

8-Sep 19.2 1.7 10-Sep 7.02 0.51

8-Oct 13.1 1.19* 10-Oct 4.38 0.34

8-Nov 10.2 0.86* 10-Nov 4.63 0.37

8-Dec 7.6 0.69* 10-Dec 4.19 0.33

* Limited production.

Year Month Year Month

Page 1 of 1

Table 1_Avg Mthly Concent & Mass Loadings.xlsx

6/26/2012
Table 2

Surface Water Sampling Results for 2011

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

Location CANAL INTAKE CANAL INTAKE CANAL INTAKE CANAL-INTAKE

Total (T)/ Date 3/25/11 6/24/11 12/28/11 9/30/11

Lab Name Analyte Units Diss. (D) Duplicate FS FS FS FS

TAL-QES-DEN PFOA UG/L T 0.0806 J 0.0452 0.0822 0.058

J = Estimated Value Page 1 of 1

Table 2-3_PFOA Tables_2011 (Envistadata).xls:Table 2-SW-Canal

6/26/2012: 3:01 PM
Table 3

Sanitary Water Sampling Results for 2011

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 1/5/11 1/5/11 1/19/11 1/19/11 1/26/11 1/26/11 2/2/11 2/2/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T 0.018 0.018 0.026 0.024 NQ (<0.014) NQ (<0.014) 0.022 0.025

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 2/9/11 2/9/11 2/16/11 2/16/11 2/23/11 2/23/11 3/2/11 3/2/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T 0.023 0.024 0.028 0.026 0.015 0.016 0.018 0.016

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 3/9/11 3/9/11 3/16/11 3/16/11 3/23/11 3/23/11 3/30/11 3/30/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T NQ (<0.015) NQ (<0.015) 0.019 0.02 0.021 0.019 NQ (<0.015) NQ (<0.015)

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON 

Lab Total (T)/ Date 4/6/11 4/6/11 4/13/11 4/13/11 4/20/11 4/20/11 4/27/11 4/27/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T NQ (<0.015) NQ (<0.015) NQ (<0.015) NQ (<0.015) 0.016 0.016 ND (0.0029) ND (0.0029) 

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 5/4/11 5/4/11 5/11/11 5/11/11 5/18/11 5/18/11 5/25/11 5/25/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T NQ (<0.017) NQ (<0.017) NQ (<0.017) NQ (<0.017) 0.021 0.023 NQ (<0.017) NQ (<0.017)

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 6/1/11 6/1/11 6/8/11 6/8/11 6/15/11 6/15/11 6/22/11 6/22/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T NQ (<0.017) NQ (<0.017) 0.031 0.03 0.072 0.074 ND (0.0034) ND (0.0034) 

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 6/29/11 6/29/11 7/6/11 7/6/11 7/13/11 7/13/11 7/20/11 7/20/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T ND (0.0034) ND (0.0034) 0.033 0.032 ND (0.0034) ND (0.0034) NQ (<0.017) NQ (<0.017)

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 7/27/11 7/27/11 8/3/11 8/3/11 8/10/11 8/10/11 8/17/11 8/17/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T ND (0.0034) ND (0.0034) ND (0.0018) ND (0.0018) NQ (<0.0092) NQ (<0.0092) NQ (<0.0092) NQ (<0.0092)

< and ND = Non detect at stated reporting limit

NQ = Not Quatified at the stated reporting limit Page 1 of 2

Table 2-3_PFOA Tables_2011 (Envistadata).xls:Table 3_Aftercarbon

6/26/2012: 3:01 PM
Table 3

Sanitary Water Sampling Results for 2011

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 8/24/11 8/24/11 8/31/11 8/31/11 9/7/11 9/7/11 9/14/11 9/14/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T ND (0.0018) ND (0.0018) ND (0.0018) ND (0.0018) NQ (<0.0092) NQ (<0.0092) NQ (<0.0092) NQ (<0.0092)

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 9/21/11 9/21/11 9/28/11 9/28/11 10/5/11 10/5/11 10/12/11 10/12/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T 0.016 0.017 ND (0.0018) ND (0.0018) ND (0.0022) ND (0.0022) NQ (<0.011) NQ (<0.011)

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 10/19/11 10/19/11 10/26/11 10/26/11 11/2/11 11/2/11 11/16/11 11/16/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T 0.011 0.011 NQ (<0.011) NQ (<0.011) NQ (<0.0092) ND (0.0018) 0.018 0.021

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 11/23/11 11/23/11 11/30/11 11/30/11 12/7/11 12/7/11 12/14/11 12/14/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS DUP FS DUP FS

MPI PFOA UG/L T 0.014 0.014 NQ (<0.0092) NQ (<0.0092) NQ (<0.015) NQ (<0.015) NQ (<0.015) NQ (<0.015)

Location AFTERCARBON AFTERCARBON AFTERCARBON AFTERCARBON

Lab Total (T)/ Date 12/21/11 12/21/11 12/28/11 12/28/11

Name Analyte Units Diss. (D) Duplicate DUP FS DUP FS

MPI PFOA UG/L T NQ (<0.015) NQ (<0.015) NQ (<0.015) NQ (<0.015)

< and ND = Non detect at stated reporting limit

NQ = Not Quatified at the stated reporting limit Page 2 of 2

Table 2-3_PFOA Tables_2011 (Envistadata).xls:Table 3_Aftercarbon

6/26/2012: 3:01 PM
APPENDIX A

DATA TABLES
Appendix A

Summary of PFOA Results at 662 January - December 2011

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 1/3/2011 1/5/2011 1/7/2011 1/10/2011 1/12/2011 1/14/2011 1/17/2011 1/19/2011 1/21/2011 1/24/2011 1/26/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 36 19 20 27 25 56 29 15 30 38 22

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 1/28/2011 1/31/2011 2/2/2011 2/4/2011 2/7/2011 2/9/2011 2/11/2011 2/14/2011 2/16/2011 2/18/2011 2/21/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 18 12 12 10 10 14 16 14 15 15 9

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 2/23/2011 2/25/2011 2/28/2011 3/2/2011 3/4/2011 3/7/2011 3/9/2011 3/11/2011 3/14/2011 3/16/2011 3/18/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 7 6 6 5 7 5 5 5 7 8 10

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 3/21/2011 3/23/2011 3/25/2011 3/28/2011 3/30/2011 4/1/2011 4/4/2011 4/6/2011 4/8/2011 4/11/2011 4/13/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 15 26 15 10 10 10 9 10 10 9 8

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 4/15/2011 4/18/2011 4/20/2011 4/22/2011 4/25/2011 4/27/2011 4/27/2011 5/2/2011 5/4/2011 5/6/2011 5/9/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 8 7 7 9 9 7 5 6 5 7 5

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 5/11/2011 5/13/2011 5/16/2011 5/18/2011 5/20/2011 5/23/2011 5/25/2011 5/27/2011 5/30/2011 6/1/2011 6/3/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 5 8 7 7 7 6 4 4 6 5 8

Data is generated from DuPont RAS Page 1 of 4

App_A_2011_LAS 662 data.xlsx

6/26/2012
Appendix A

Summary of PFOA Results at 662 January - December 2011

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 6/6/2011 6/8/2011 6/10/2011 6/13/2011 6/15/2011 6/17/2011 6/20/2011 6/22/2011 6/24/2011 6/27/2011 6/29/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 8 7 7 8 8 6 6 5 5 5 6

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 7/1/2011 7/4/2011 7/6/2011 7/8/2011 7/11/2011 7/13/2011 7/15/2011 7/18/2011 7/20/2011 7/22/2011 7/25/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 5 6 4 4 4 5 5 5 5 3 4

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 7/27/2011 7/29/2011 8/1/2011 8/3/2011 8/5/2011 8/8/2011 8/10/2011 8/12/2011 8/15/2011 8/17/2011 8/19/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 4 3 4 4 4 4 4 6 8 5 7

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 8/22/2011 8/24/2011 8/26/2011 8/29/2011 8/31/2011 9/2/2011 9/5/2011 9/7/2011 9/9/2011 9/12/2011 9/14/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 5 4 4 5 7 8.8 8 5 6 7 7

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 9/16/2011 9/19/2011 9/21/2011 9/23/2011 9/26/2011 9/28/2011 9/30/2011 10/3/2011 10/5/2011 10/7/2011 10/10/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 8 10 9 8 6 6 4 4 4 4 4

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 10/12/2011 10/14/2011 10/17/2011 10/19/2011 10/21/2011 10/24/2011 10/26/2011 10/28/2011 10/31/2011 11/2/2011 11/4/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 4 4 4 4 5 6 5 6 5 6 7

Data is generated from DuPont RAS Page 2 of 4

App_A_2011_LAS 662 data.xlsx

6/26/2012
Appendix A

Summary of PFOA Results at 662 January - December 2011

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 11/7/2011 11/9/2011 11/11/2011 11/14/2011 11/16/2011 11/18/2011 11/21/2011 11/23/2011 11/25/2011 11/28/2011 11/30/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 5 5 5 5 4 4 3 4 5 5 4

Sample CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662 CWK-662

Total (T)/ Date 12/2/2011 12/5/2011 12/7/2011 12/9/2011 12/12/2011 12/14/2011 12/16/2011 12/19/2011 12/21/2011 12/23/2011 12/26/2011

Analyte Units Diss (D) Duplicate 1 1 1 1 1 1 1 1 1 1 1

PFOA ug/L T 4 5 4 4 6 5 5 4 2 4 5

Sample CWK-662 CWK-662

Total (T)/ Date 12/28/2011 12/30/2011

Analyte Units Diss (D) Duplicate 1 1

PFOA ug/L T 4 5

Sample 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB

Total (T)/ Date 1/3/2011 1/10/2011 1/17/2011 1/24/2011 1/31/2011 2/7/2011 2/14/2011 2/21/2011 2/28/2011 3/7/2011 3/14/2011

Analyte Units Diss (D) Duplicate FS FS FS FS FS FS FS FS FS FS FS

PFOA ug/L T 26.6 J 21.4 J 21.7 J 24.8 J 10 8 10 7 5 5 7

Sample 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB

Total (T)/ Date 3/21/2011 3/28/2011 4/4/2011 4/11/2011 4/18/2011 4/25/2011 5/5/2011 5/9/2011 5/16/2011 5/23/2011 5/23/2011

Analyte Units Diss (D) Duplicate FS FS FS FS FS FS FS FS FS DUP FS

PFOA ug/L T 18 8 7 7 6 7 4 5.89 J 4.99 J 3.97 J 5.19 J

Sample 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB

Total (T)/ Date 5/30/2011 6/6/2011 6/13/2011 6/20/2011 6/27/2011 7/4/2011 7/11/2011 7/18/2011 7/25/2011 8/1/2011 8/8/2011

Analyte Units Diss (D) Duplicate FS FS FS FS FS FS FS FS FS FS FS

PFOA ug/L T 11 7.11 J 7 5 4 7 4 4 3 4 3

Data is generated from DuPont RAS Page 3 of 4

App_A_2011_LAS 662 data.xlsx

6/26/2012
Appendix A

Summary of PFOA Results at 662 January - December 2011

Status Report on PFOA Emissions Reductions and Data Summary for 2011

DuPont Chambers Works

Deepwater, New Jersey

Sample 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB

Total (T)/ Date 8/15/2011 8/22/2011 8/29/2011 9/5/2011 9/12/2011 9/19/2011 9/26/2011 10/3/2011 10/10/2011 10/17/2011 10/24/2011

Analyte Units Diss (D) Duplicate FS FS FS FS FS FS FS FS FS FS FS

PFOA ug/L T 7 4 6 11 7 9 6 6 4 3 9

Sample 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB 662-GRAB

Total (T)/ Date 10/31/2011 11/7/2011 11/14/2011 11/21/2011 11/28/2011 12/5/2011 12/12/2011 12/19/2011 12/26/2011

Analyte Units Diss (D) Duplicate FS FS FS FS FS FS FS FS FS

PFOA ug/L T 4 5 7 4 13 3 5 2 4

Data is generated from DuPont RAS Page 4 of 4

App_A_2011_LAS 662 data.xlsx

6/26/2012