From: Garth Tayler [ mailto:gtayler@brick.com ]

Sent: Thursday, February 12, 2009 1:33 PM

To: Marinshaw, Richard

Subject: RE: Information on Periodic Kilns

Attachment: Data Charts.xls

Dear Mr. Marinshaw

I attach the plots for the Bridgeport, Fort Smith and Bennet plants. These firing cycle charts correspond

with the stack test data submitted and deal with:

Temperature v Time for the firing curve (the cooling curve of the cycle is not included, since no

em issions occur during this stage of the cycle)

Volume flow in dscfm for the firing curve. The curve shows a moving average plot of 4 volume flow

readings that were taken at 4 progressive stages within the firing cycle. This is a reasonable

representation o f the volume flows that occurred during the firing cycles.

It should be noted that in each of these cycles, the exhaust stack temperatures measured at the exhaust

fan, increased from a start temperature of about 100 degrees F, to around 400 to 450 degrees F towards

the end of the cycle. As the kiln firing temperature increased, the exhaust flue gas temperature had to

be reduced by bleeding ambient air through an adjustable damper, to prevent the fan from over heating.

Hence the volume flow shown in the pl ot reflects the total flow after the bleed air addition.

The cost of these stack tests were as follows:

Bridgeport Pant 5/21/2003 $19,845

Fort Smith Plant 12/10/2003 $17,500

Bennet Plant 2/14/2003 $20,940

Please don't h esitate to contact me if you require any further clarification of this information.

Thank you

Dr.Garth Tayler

Technical Director

Acme Brick Company

Fort Worth, Texas.

(817) 870

- 8354 (office)

(817) 907

- 1208 (mobile)----- Original Messa ge

-----

From: Marinshaw, Richard [ mailto:rjmarinshaw@rti.org ]

Sent: Monday, February 02, 2009 12:35 PM

To: Garth Tayler

Cc: Telander.Jeff@epamail.epa.gov ; Holloway, Thomas C. (Tom); Raymond, Gabrielle

Subject: Information on Periodic Kilns

Garth Tayler

Technical Director

Acme Brick Company

Fort Worth, TX

Dear Mr. Tayler,

As we discussed earlier this afternoon, we would like to obtain additional information on the periodic kilns

that were tested by Acme Brick in 2003. Specifically, we would like the following information:

- Temperature profile (time vs. temperature) for the entire kiln cycle.

- Exhaust gas flow rate through the kiln for the entire kiln cyc le (or other data that show how flow rate

varies during the kiln cycle)

- Emission test costs

If Acme Brick considers any of this information to be confidential, the information should be sent to the

EPA Confidential Business Information (CBI) Office at the following address, to the attention of Jeff

Telander:

Mr. Roberto Morales

U.S. Environmental Protection Agency

Office of Air Quality Planning and Standards

IO/PRRMS (MD

- C404

- 02)

109 T.W. Alexander Drive

Research Triangle Park, North Carolina 27711.

Oth erwise, you can email the information to me, or send it by mail to the address listed below.

Richard Marinshaw

RTI International

P.O. Box 12194

Research Triangle Park, NC 27709

- 2194

For FedEx or other courier, please use the following address:

RTI International

Richard Marinshaw

800 Park

3rd Floor, Office C

- 318

Research Triangle Park, NC 27709

Please let me know if you have any questions or would like to discuss this request.

Thanks for your help.

Rick Marinshaw

Richard J. Marinshaw, P.E.

Research Environmental Engineer

RTI International

Phone: 919

- 316

- 3735