From: Fielder, Phillip

To: Hancy, Cindy Wang

Subject: RE: Cr Electroplating Data Request - US EPA

Date: Wednesday, February 23, 2011 4:58:40 PM



## Cindy,

The files have been placed on our FTP site. Here is the link.

ftp://ftp.deq.state.ok.us/DEQ%20Public/AQD/

The files are located in the following folder:

EPA_CR_Electroplating_Data_Request



## One note, our system has problems with opening the documents directly from

our site. You will need to save these documents to your system in order to

view (unless something has changed that I don’t know about).

Please let me know when you have completed so we can remove from our

FTP.

Thanks

Phil

From: Hancy, Cindy Wang [mailto:chancy@rti.org]

Sent: Wednesday, February 23, 2011 10:36 AM

To: Fielder, Phillip

Subject: RE: Cr Electroplating Data Request - US EPA

Phillip,

One more thing, we can set up an FTP also, for you to access if that will be easier.

Thanks,

Cindy Wang Hancy

RTI International

P.O. Box 12194

Research Triangle Park, NC 27709

Phone: (919) 541-6623

Fax: (919) 316-3420From: Fielder, Phillip [mailto:Phillip.Fielder@deq.ok.gov]

Sent: Wednesday, February 23, 2011 11:24 AM

To: Hancy, Cindy Wang

Subject: RE: Cr Electroplating Data Request - US EPA



## Cindy,

We have put together some information related to this request. How do you

prefer to receive it? It is currently about one 3 inch binder of info.

We can scan and send you a series of e-mails contains these or we can

possibly place on an ftp server for you to access.

From: Hancy, Cindy Wang [mailto:chancy@rti.org]

Sent: Friday, February 11, 2011 11:17 AM

To: Fielder, Phillip

Cc: Marinshaw, Richard

Subject: Cr Electroplating Data Request - US EPA

Phillip,

Thanks for speaking with me today. As I explained in our conversation, the U.S. Environmental

Protection Agency (EPA), is performing the residual risk and technology review of the National

Emission Standards for Hazardous Air Pollutants: Hard and Decorative Chromium Electroplating

and Chromium Anodizing Tanks (Chromium Electroplating NESHAP). Amendments to the NESHAP

were proposed on October 21, 2010 (75 FR 65068), and EPA is under a court-ordered deadline to

finalize the amendments by June 30, 2011. Several comments received on the October 2010

proposal stated that EPA lacked adequate data to fully assess the risk associated with emissions

from chromium electroplating sources; other commenters stated that EPA did not account for the

facilities with the highest risk. In response to those comments, EPA is now trying to collect data on

potentially high risk facilities. RTI International is assisting EPA in this effort by contacting several

State agencies to request data on the 5 to 10 facilities in those States that are likely to have the

highest risk.

Attached are two files, one containing the facilities we have listed for Oklahoma, the other is a file

that lists the specific types of data needed, we would like to collect as many of the listed items as

possible for each facility. The most critical data needs are:

For each chromium electroplating or anodizing tank:

· Type of chromium electroplating process (hard, decorative, trivalent, anodizing)

· Surface dimensions (length and width)

· Rectifier capacity (amperes)

· Limits on rectifier operation (ampere-hours per year)· Maximum permitted process operating hours (hours per year)

· Typical process operating hours (hours per year)

· Emission control method

· Emission test data (complete test report, if available)

· Any updates to Cr. Electroplating facilities listed in the attachment (plant closings, etc.)

In order to remodel risk for this source category and re-evaluate the regulatory options for

reducing risk to acceptable levels, while meeting the June 30, 2011 deadline, we would like to

obtain the requested information as soon as possible, and no later than the end of February 2011.

If you have any questions about this request or would like to discuss any issues related to the

Chromium Electroplating NESHAP, you can contact Phil Mulrine with EPA's Office of Air Quality

Planning and Standards. Phil can be reached by phone at: 919-541-5289, or by email at:

mulrine.phil@epa.gov

.

Thanks again for your help, and I look forward to talking to you soon.

Cindy Wang Hancy

RTI International

P.O. Box 12194

Research Triangle Park, NC 27709

Phone: (919) 541-6623

Fax: (919) 316-3420