March 12, 2010

INVISTA S.à r.l.-Seaford Plant (INVISTA)

25876 DuPont Road

Seaford, DE 19973

ATTENTION: Steven R. Kimpton

Plant Manager

SUBJECT: Cancellation of Permits associated with Emission Units permanently shutdown

Dear Mr. Kimpton:

The Department accepts the cancellation requests dated December 31, 2009 and February 23, 2010 as 

formal notification to cancel all the permits identified in the Attachment below. The listed permits which 

allow for the operation of the emission units described in the Attachment are hereby cancelled due to the 

permanent shutdown of the associated emission units located at 25876 DuPont Road, Seaford, Delaware. 

Operation of these emission units after the date of this letter shall constitute a violation of 7 DE Admin. 

Code 1100.

Please contact Phanuel C. K. Bediako, Ph.D. at (302) 739-9402 if you have any questions or concerns.

Sincerely,

Paul E. Foster, P.E.

Program Manager

Engineering & Compliance Branch

PEF:JLF:PCKB:sr

f:\pckb\pckb10027.doc

pc: Dover (Title V) File

Joanna L. French, P.E.

Phanuel C. K. Bediako, Ph.D.

Jack Sipple

Frank Gao

John Outten
INVISTA-Seaford Plant

March 12, 2010

Page 2

ATTACHMENT: LIST OF CANCELLED PERMITS

PERMIT NUMBER EQUIPMENT DESCRIPTION

APC-83/071-OPERATION (Amendment 5)(NOx RACT) 

dated October 3, 2002

231 MMBTU/hr Combustion Engineering Boiler 

(EU 002)

APC-82/035-OPERATION dated August 28, 1981 Coal Car Thawing Unit (EU 006)

APC-88/268-OPERATION dated July 15, 1988 18 MMBTU/hr DOWTHERM Vaporizer 

(EU 011)

APC-88/270-OPERATION dated July 15, 1988 18 MMBTU/hr DOWTHERM Vaporizer 

(EU 013)

APC-88/271-OPERATION dated July 15, 1988 18 MMBTU/hr DOWTHERM Vaporizer

(EU 014)

APC-88/272-OPERATION dated July 15, 1988 18 MMBTU/hr DOWTHERM Vaporizer

(EU 015)

APC-88/273-OPERATION dated July 15, 1988 24 MMBTU/hr DOWTHERM Vaporizer

(EU 016)

APC-88/274-OPERATION dated July 15, 1988 46.4 MMBTU/hr DOWTHERM Vaporizer (EU 017)

APC-88/275-OPERATION dated July 15, 1988 46.4 MMBTU/hr DOWTHERM Vaporizer (EU 018)

APC-80/1406-OPERATION dated September 17, 1980 Lindberg Reclamation Unit (Electric) 

(EU 021)

APC-80/1407-OPERATION dated September 17, 1980 Lindberg Reclamation Unit (Electric) 

(EU 022)

APC-80/1321-OPERATION (Amendment 1) dated 

May 12, 1982

Reflux Recovery Column on CP Line III 

Continuous Polymerization Processes 

(EU 025A)

APC-82/1189-OPERATION dated October 10, 1982 Two polymerizers and scrubbing machines No. 21 

and No. 22 (EU 025A)

APC-2001/0302-OPERATION dated April 5, 2004 North Scrubber System (EU 025B)

APC-2001/0303-OPERATION dated April 5, 2004 South Scrubber System (EU 025B)

APC-2002/0741-OPERATION dated April 5, 2004 Middle Scrubber System (EU 025B)

APC-94/0853-CONSTRUCTION/OPERATION dated 

November 8, 1996

DOWTHERM Vent Condensers (EU 026)

APC-2005/0179-CONSTRUCTION/OPERATION dated 

October 5, 2005

Four (4) Adipic Acid Vacuum Conveyance Systems 

(EU 036)

APC-2005/0180-CONSTRUCTION/OPERATION dated 

October 5, 2005

APC-2005/0181-CONSTRUCTION/OPERATION dated 

October 5, 2005

APC-2005/0182-CONSTRUCTION/OPERATION dated 

October 5, 2005
MEMORANDUM

TO: Paul E. Foster, P.E.

THROUGH: Joanna L. French, P.E.

FROM: Phanuel C. K. Bediako, Ph.D.

SUBJECT: Cancellation of Permits

INVISTA-Seaford Plant

DATE: March 2, 2010

BACKGROUND INFORMATION:

The Department received a letter dated December 31, 2009 and a supplementary letter dated 

February 23, 2010 in which INVISTA requested an administrative amendment to the Title V permit. 

According to the letter, several operations have been permanently shut down as a result of the 

restructuring. The major thrust of this restructuring was the shutdown of all batch and continuous Nylon 

polymerization processes. Furthermore, Bulk Continuous Filament (BCF) spinning operations have been 

discontinued. One (231) MMBTU/hr Combustion Engineering coal-fired boiler (Boiler No. 2) was 

permanently shut down as a result of the July 28, 2009 Consent Decree between the EPA, the Department 

of Justice, DNREC, and INVISTA.

The Company requested that the emission units which have been permanently shut down be deleted from 

the Title V permit and the associated 7 DE Admin. Code 1102 permits be cancelled. The Table identifies 

all the permits which are to be cancelled.

LIST OF PERMITS TO BE CANCELLED

PERMIT NUMBER EQUIPMENT DESCRIPTION

APC-83/071-OPERATION (Amendment 5) (NOx RACT) 

dated October 3, 2002

231 MMBTU/hr Combustion Engineering Boiler 

(EU 002)

APC-82/035-OPERATION dated August 28, 1981 Coal Car Thawing Unit (EU 006)

APC-88/268-OPERATION dated July 15, 1988 18 MMBTU/hr DOWTHERM Vaporizer 

(EU 011)

APC-88/270-OPERATION dated July 15, 1988 18 MMBTU/hr DOWTHERM Vaporizer 

(EU 013)

APC-88/271-OPERATION dated July 15, 1988 18 MMBTU/hr DOWTHERM Vaporizer

(EU 014)

APC-88/272-OPERATION dated July 15, 1988 18 MMBTU/hr DOWTHERM Vaporizer

(EU 015)

APC-88/273-OPERATION dated July 15, 1988 24 MMBTU/hr DOWTHERM Vaporizer

(EU 016)

APC-88/274-OPERATION dated July 15, 1988 46.4 MMBTU/hr DOWTHERM Vaporizer (EU 017)

APC-88/275-OPERATION dated July 15, 1988 46.4 MMBTU/hr DOWTHERM Vaporizer (EU 018)

APC-80/1406-OPERATION dated September 17, 1980 Lindberg Reclamation Unit (Electric) 

(EU 021)

APC-80/1407-OPERATION dated September 17, 1980 Lindberg Reclamation Unit (Electric) 

(EU 022)

APC-80/1321-OPERATION (Amendment 1) dated 

May 12, 1982

Reflux Recovery Column on CP Line III 

Continuous Polymerization Processes 

(EU 025A)
MEMORANDUM

INVISTA-Seaford Plant

March 2, 2010

Page 2

LIST OF PERMITS TO BE CANCELLED

PERMIT NUMBER EQUIPMENT DESCRIPTION

APC-82/1189-OPERATION dated October 10, 1982 Two polymerizers and scrubbing machines No. 21 

and No. 22 (EU 025A)

APC-2001/0302-OPERATION dated April 5, 2004 North Scrubber System (EU 025B)

APC-2001/0303-OPERATION dated April 5, 2004 South Scrubber System (EU 025B)

APC-2002/0741-OPERATION dated April 5, 2004 Middle Scrubber System (EU 025B)

APC-94/0853-CONSTRUCTION/OPERATION dated 

November 8, 1996

DOWTHERM Vent Condensers (EU 026)

APC-2005/0179-CONSTRUCTION/OPERATION dated 

October 5, 2005

Four (4) Adipic Acid Vacuum Conveyance Systems 

(EU 036)

APC-2005/0180-CONSTRUCTION/OPERATION dated 

October 5, 2005

APC-2005/0181-CONSTRUCTION/OPERATION dated 

October 5, 2005

APC-2005/0182-CONSTRUCTION/OPERATION dated 

October 5, 2005

RECOMMENDATION:

I recommend that the permits identified above be cancelled.

PEF:JLF:PCKB:sr

f:\pckb\pckb10027.doc

pc: Dover (Title V) File

Jack Sipple

Frank Gao

Karen Mattio, P.E.

Dawn Minor

Joanna French, P.E.

John Outten