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Project No.: 0317.02.005.520 Page 1 of 4

Project Name: 2015 Annual Review – Preliminary 

Category Review OCPSF (PSC 414) CBI?

Yes

No

TELEPHONE CALL RECORD

Incoming

Outgoing

Date: 05/07/2015 Time: 2:45 am

pm

Company Name: DuPont Chambers Works ERG Staff Name: Eva Knoth

Contact Name: Scott Northey Contact Phone Number: (856) 540-2012 

scott.t.northey@dupont.com

General Subject: 2013 TRI Nitrate Releases from DuPont Chambers Works, Deepwater, NJ. TRI ID: 

08023DPNTCRT130

TOPICS DISCUSSED AND ACTION TAKEN

I left a message for Mr. Northey on May 7, 2015 2:45 pm.

Mr. Northey returned my call on May 8, 2015 at 4:30 pm. He asked for clarification on the information we requested and 

stated he would respond next week via email. He noted that the reduction in nitrate releases over the past few years was 

due process changes at the facility and not changes in wastewater treatment processes.

From: NORTHEY, SCOTT [mailto:SCOTT.T.NORTHEY@chemours.com] 

Sent: Tuesday, July 28, 2015 2:55 PM

To: Eva Knoth <Eva.Knoth@erg.com>

Subject: RE: TRI Data Quality Question 2012 vs 2013 

Overall, the DuPont Chambers Works facility experienced an overall decrease of 563,606 pounds of on-site 

releases in 2013 compared to 2012 (a decrease of 19%).

The bulk of the reduction was the result of a reduction in nitrates and sodium nitrite releases to surface water 

due to:

‒ Improvements in analytical and calculation methods for sodium nitrite yielded more representative 

data for surface water releases

‒ Decreased nitrogen load to WWTP 

In addition, there was a reduced number of compounds exceeding threshold plus other reduced releases due to 

process changes in some of the production areas on site.

Scott T. Northey

Site Environmental Manger

Scott.T.Northey@Chemours.com

856-540-2012 office

302-354-7321 mobile

The Chemours Company

Chambers Works Facility

67 Canal Road, P.O. Box 9001

Deepwater, NJ 08023
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LinkedIn | Twitter | Chemours.com

From: Scott.T.Northey@chemours.com [mailto:Scott.T.Northey@chemours.com] 

Sent: Tuesday, May 26, 2015 1:01 PM

To: Eva Knoth

Subject: RE: TRI Data Quality Question 2012 vs 2013 

EvaThe reported TRI nitrate releases discharged to river are calculated on net basis, effluent less the influent 

of the river water intake to the Chambers Works Site. These two streams are sampled once per week and 

analyzed for nitrate via method EPA-300.0. If nitrate is not detectable, then half of method detection 

limit would be used, however nitrate was detected in all recent 2013 samples which is typical. The 

effluent flow is measured continuously.

Scott Northey

Environmental Manager

DuPont/Chemours Chambers Works

856-540-2012 (work)

302-354-7321 (cell)

scott.t.northey@chemours.com

From: Eva Knoth 

Sent: Monday, May 18, 2015 10:54 AM

To: Scott.T.Northey@chemours.com

Subject: RE: TRI Data Quality Question 2012 vs 2013 

Mr. Northey, 

Thank you for confirming the data. 

Could you explain the methodology used to estimate the nitrate release in 2013? If monitoring was conducted: 

how often were measurements taken and, if applicable, how were non-detects handled?

Thank you, 

Eva

Eva Knoth

Environmental Engineer

Eastern Research Group, Inc. (ERG)

eva.knoth@erg.com

(703) 633-1648

From: Scott.T.Northey@chemours.com [mailto:Scott.T.Northey@chemours.com] 

Sent: Monday, May 18, 2015 10:42 AM
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To: Eva Knoth

Subject: FW: TRI Data Quality Question 2012 vs 2013 

Yes – the nitrate releases are correct for 2013.

Let me know if you need additional information.

Scott Northey

Environmental Manager

DuPont/Chemours Chambers Works

856-540-2012 (work)

302-354-7321 (cell)

scott.t.northey@chemours.com

From: Eva Knoth 

Sent: Monday, May 18, 2015 10:22 AM

To: 'Scott.T.Northey@chemours.com' <Scott.T.Northey@chemours.com>

Subject: RE: 2013 TRI Clarification for Nitrate Water Releases

Mr. Northey, 

Please confirm the 2013 Nitrate TRI Water Releases below:

Surface Water Release: 2,315,714 pounds

Transfer to POTW Release: 0 pounds

Basis of Estimate: C

We appreciate your help in interpreting TRI data correctly.

Thank you, 

Eva

Eva Knoth

Environmental Engineer

Eastern Research Group, Inc. (ERG)

eva.knoth@erg.com

(703) 633-1648

From: Scott.T.Northey@chemours.com [mailto:Scott.T.Northey@chemours.com] 

Sent: Monday, May 18, 2015 9:30 AM

To: Eva Knoth <Eva.Knoth@erg.com>

Subject: RE: 2013 TRI Clarification for Nitrate Water Releases

Can you send me the numbers you want clarified so I can make sure we are looking at the same numbers and I 

answer your questions appropriately.

Scott Northey

Environmental Manager

DuPont/Chemours Chambers Works

856-540-2012 (work)
Need to return call by / at/between and . Signature:

302-354-7321 (cell)

scott.t.northey@chemours.com

From: Eva Knoth [mailto:Eva.Knoth@erg.com] 

Sent: Monday, May 18, 2015 8:17 AM

To: NORTHEY, SCOTT

Subject: 2013 TRI Clarification for Nitrate Water Releases

Mr. Northey,

I wanted to follow up on our call on May 8 and confirm that you have the correct contact information. If 

possible, it would be helpful to have a response from you by the end of the day Wednesday (5/20).

Eastern Research Group, Inc. (ERG) under EPA Contract No. EP-C-12-021, is contacting you on EPA's behalf to request 

clarification of reported 2013 TRI nitrate releases from Dupont Chamber Works, Deepwater, NJ (TRI ID: 

08023DPNTCRT130). Please call me at (703) 633-1648 if you have any questions. If you would like to speak directly with 

EPA regarding this request, you can contact William F. Swietlik of EPA's Office of Water/Engineering Analysis Division by 

phone at (202) 566-1129 or by email: swietlik.william@epa.gov.

Thank you for your time,

Eva

Eva Knoth

Environmental Engineer

Eastern Research Group, Inc. (ERG)

eva.knoth@erg.com

(703) 633-1648