U.S. EPA Information Collection Request for Group 1 Polymers and Resins Production

General Information

Company Name: DuPont Performance Elastomers

Facility Name: Pontchartrain Site

Facility Address: 560 Highway 44, LaPlace, La 70068

Mailing Address (if different from 

facility address):

Site Contact Name: Doris B. Grego

Site Contact Title: Environmental Technical Associate

Site Contact Phone Number: 985-536-5437

Site Contact Email Address: Doris.B.Grego@usa.dupont.com

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U.S. EPA Information Collection Request for Group 1 Polymers and Resins Production

Facility Information

Is the facility a major source for HAP?

Are there one or more process units at the facility subject to the 

Polymers and Resins I (P&R I) MACT (40 CFR 63, subpart U)?

Are there one or more P&R I process units that do not “use or 

manufacture any organic HAP”? (See §63.480(b))

What is the base year for which information is being provided?

For this base year, what was the solid rubber production rate 

(tons/yr)?

For this base year, what was the liquid latex production rate 

(tons/yr)?

For each elastomer product process unit (EPPU), please provide 

the primary product, capacity, and annual production 

information: EPPU ID Primary Product

Capacity 

(tons/yr)

Annual Production 

(tons/yr)

Neoprene Neoprene 49,000 36,925

Please provide EPPU IDs that are flexible operating units which 

produce other products.

Are any P&R I operations scheduled to be discontinued? 

Are any P&R I operations scheduled to be added or expanded?

If yes, please provide dates of closure and explain 

changes:

(If no, you need not complete any further portions of 

this survey)

2007

36,925

Neoprene is the only facility/product covered under this 

regulation.

This facility did not manufacture latex in 2007

If yes, please explain:

(add information for more EPPUs as necessary)

If yes, please provide date(s) that addition(s) and/or 

expansion(s) will begin production and explain changes:

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

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U.S. EPA Information Collection Request for Group 1 Polymers and Resins Production

If no, please explain.

If no, please explain.

If "Other", please explain:

DuPont Emission factors

If yes, please provide details:

For the organic HAP emissions, are you implementing work 

practices or other control techniques beyond those required 

by the MACT standard?

Equipment Leaks

Have you verified and/or corrected the equipment leak 

emissions for your P&R I processes in the dataset?

Have you completed all control information fields for your 

P&R I equipment leaks in the dataset?

What emissions calculation approach was used to estimate 

the equipment leak emissions?

Screening ranges approach

EPA correlation approach

Unit-specific correlation approach

Other

Yes

No

Yes

No

Yes

No

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U.S. EPA Information Collection Request for Group 1 Polymers and Resins Production

If no, please explain.

If no, please explain.

Emission Unit ID

Mass Emission Rate of 

Halogen Atoms (kg/hr)

Are you controlling these HCl emissions?

EPPU ID

Front-End Process 

Vent ID

Originating source of 

chlorinated compounds Batch or continuous?

If batch, 

operating 

schedule 

(hrs/yr)* 

*(please use the base year identified in "Facility Information")

(add information for more EPPUs as necessary)

If yes, what is the limit and how are you required to demonstrate 

compliance (e.g., source testing, continuous emissions monitoring, 

continuous or periodic parameter monitoring, etc)? Please describe or 

provide a copy of these requirements.

If yes, please describe the control device or control strategy:

Please complete the following table for each elastomer product process unit (EPPU) for which there HCl emissions 

that result from combustion of a halogen in a control device. 

Do you have a permit/emission limit for 

HCl emissions?

If yes, please please complete the following section:

Front-End Process Vent Emissions Information

Have you verified and/or corrected the front-end process vent 

emissions for your P&R I processes in the dataset?

Have you completed all control information fields for your 

P&R I front-end process vent streams in the dataset?

What emissions calculation approach was used to estimate the 

front-end emissions?

Combination of stack test and engineering 

(add information for more emission units as 

necessary)

If "Other", please explain:

From P&R I processes, are there HCl emissions that result from 

combustion of a halogen in a control device?

Please provide the Emission Unit ID and 

mass emission rate of halogen atoms 

Stack Test

Continuous Emissions Monitoring

Engineering Calculations

Other

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

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U.S. EPA Information Collection Request for Group 1 Polymers and Resins Production

If no, please explain.

If no, please explain.

This facility does not have controls for the back end 

process vents

See Attachment , Backend Process Description.

If "Other", please explain:

Stack testing result from similar facilities and calculations 

based on process knowledge.

If yes, what is the limit/requirement and how are you 

required to demonstrate compliance (e.g. source testing, 

continuous emissions monitoring, continuous or periodic 

parameter monitoring, etc)? Please describe or provide a 

copy of these requirements.

See Attachment , Backend Process Sources.

What type of emission sources are there from your back-end 

processes?

Do you have any permit limits or conditions for the 

emissions from the back-end process operations?

Back-End Process Operations

Have you verified and/or corrected the back-end process 

operation emissions for your P&R I processes in the dataset?

Have you completed all control information fields for your 

P&R I back-end processes in the dataset?

What emissions calculation approach was used to estimate 

the back-end emissions?

Are the back-end process operations continuous or batch?

If the back-end process operations are batch, what is the 

operating schedule (hrs/yr) (please use the base year 

identified in "Facility Information")

Please describe the back-end emission processes at this 

facility (i.e., the operations in an EPPU following the 

stripping operations):

Stack Test

Continuous Emissions Monitoring

Other

Continuous 

Batch

Stack

Fugitive (not including equipment leaks)

Yes

No

Yes

No

Yes

No

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U.S. EPA Information Collection Request for Group 1 Polymers and Resins Production

Storage Vessels Emissions Information

Have you verified and/or corrected the storage vessels 

emissions for your P&R I processes in the dataset?

Have you completed all control information fields for 

your P&R I storage vessels in the dataset?

What emissions calculation approach was used to 

estimate the storage vessels, surge control vessels, and 

bottoms receivers emissions?

If no, please explain.

If no, please explain.

If "Other", please explain:

TANKS

Other engineering calculations

Stack Test

Other

Yes

No

Yes

No

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U.S. EPA Information Collection Request for Group 1 Polymers and Resins Production

Wastewater

If no, please explain.

If no, please explain.

If "Other", please explain:

If "Other", please explain:

Wastewater Management 

Unit ID Control Control Efficiency

3-95 Diversion Tank No control, open tank NA

4-95 Surge Tank No control, open tank NA

5-95 Aeration Tank No control, open tank NA

(add information for more waste management units as necessary)

Have you verified and/or corrected the wastewater 

emissions for your P&R I processes in the dataset?

Have you completed all control information fields for your 

P&R I wastewater in the dataset?

What emissions calculation approach was used to estimate 

the emissions from tanks, containers, and oil-water 

separators?

What emissions calculation approach was used to estimate 

the emissions from surface impoundments and drain 

systems?

Please list all waste management units that receive, manage, or treat Group 2 wastewater streams and their 

controls (these waste management units may not match the wastewater unit ID in the dataset):

Not applicable, the streams sent to wastewater 

treatment are from the washbelts in the back end 

process. The organic concentration of this stream is 

very low. No controls for the wastewater streams are 

required.

TANKS

Other engineering calculations

Stack Test

WATER9

Other

Yes

No

Yes

No

Engineering calculations

WATER9

Other

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U.S. EPA Information Collection Request for Group 1 Polymers and Resins Production

Startup and Shutdown Events

If no for any of the above, please explain:

Do you wish to recommend a standard that would apply during startup and shutdown? If so, please:

3. Provide a compliance determination method

Storage Vessels

Wastewater

For each emission source type, do the annual emissions estimate in the dataset "Emissions (TPY)" field include the 

annual emissions from startup and shutdown events that you added in the "STARTUP EMISSIONS (TPY)" and 

"SHUTDOWN EMISSIONS (TPY)" fields?

Equipment Leaks

Front-End Process Vents

Back-End Process Operations

4. Provide the basis for the recommended standard

5. Explain why and how the standard would minimize emissions during 

the event

For each emission source type, can you comply with the emissions limitation and/or work practices in the regulation 

that apply during normal operation during startup and shutdown events?

Equipment Leaks

Front-End Process Vents

Back-End Process Operations

Storage Vessels

Wastewater

1. Describe the event(s) to which the standard would apply

2. Provide the recommended standard (this could be an emission 

limitation, work practice, or operational standard) that would apply 

during the period

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

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