From: "McKeown, David (Columbia) NA" <David.McKeown@hanson.biz>

To: "McKeown, David (Columbia) NA" <David.McKeown@hanson.biz>, Jeff

Telander/RTP/USEPA/US@EPA

Cc: James Rickun <jrickun@chorus.net>, Ron Myers/RTP/USEPA/US@EPA, "Anderson, Paul

(Mineral Wells) NA" <Paul.Anderson@hanson.biz>

Date: 10/14/2010 10:58 AM

Subject: RE: Documentation of detection limits

Attachment: Metals Summary

- for ERT.xlsx

I neglected to include this additional file in my previous email. Sorry.

J. David McKeown

Fro m: McKeown, David (Columbia) NA

Sent: Thursday, October 14, 2010 10:56 AM

To: 'Telander.Jeff@epamail.epa.gov'

Cc: 'James Rickun'; 'myers.ron@epamail.epa.gov'; Anderson, Paul (Mineral

Wells) NA

Subject: RE: Documentation of detection limits

Attachment: kiln 2 Table 1

- for ERT.xlsx ; kiln 2 Table 2

- for ERT.xlsx ; kiln 2 Table 3

- for ERT.xlsx ;

HansonBrickMineralWells

- ERT Myers.mdb

Mr. Telander:

As you know, Hanson Brick contracted Mr. Jim Rickun to enter our Mineral Wells stack test data into the

ERT system. In doing so, Mr. Rickun has been in contact with Mr. Ron Myers who has helped clear up

some of our confusion. As suc h, Mr. Myers has provided us with a version of our "Project Data Set" that

fixed some of the bugs we were encountering.

During this process, we requested, and received, additional data from the stack tester. I have included

these three additional Exc el files as well as the "Project Data Set" file as corrected by Mr. Myers. Please

note that you must change the extension on the "HansonBrickMineralWells

- ERT Myers" file from .xxx

to .mdb in order for the ERT program to load the data.

I hope this helps clarify any discrepancies. As this is the first time we have encountered the use of the

ERT program, please bear with us as we get through all of the intricate details.

Thank you.

J. David McKeown

Lehigh Hanson

5100 Brickyard Road

Col umbia, SC 29203

Tel: 803 691 3121

Cell: 803 351 0635

Fax: 803 786 9703

David.McKeown@Hanson.Biz----- Original Message

-----

From: Telander.Jeff@epamail.epa.gov [mailto:Telander.Jeff@epamail.epa.gov]

Sent: Wednesday, October 13, 2010 4:09 PM

To: McKeown, David (Columbia) NA

Subject: Documentation of detection limits

Dear Mr McKeown,

As I indicated in my voice message to you this afternoon, additional information is needed regarding the

procedures used to determine the detection lim its in the Mineral Wells stack test report dated

September 28, 2010.

Page 4 of Enclosure 3 to the Section 114 letter that was sent to you includes the following requirements

regarding procedures used to determine analytical detection limits:

When reporting and calculating individual test run data:

* For analytical data reported from the lab as "nondetect" or "below detection level;"

- Include a brief description of the procedures used to determine the analytical detection and in

stack detection levels:

o In the Notes line of Excel emission test spreadsheet template; or

o In the Comments line of Lab Data tab in the Run Data Details in the ERT.

- Describe these procedures completely in a separate attachment including the measurements

made, the standards used, and the statis tical procedures applied.

The Mineral Wells test report does not appear to include the above required information regarding

detection limits for each pollutant. Please forward this information to me as soon as possible.

Sincerely,

Jeff Telande r

Jeff Telander

Sector Policies and Programs Division

Office of Air Quality Planning and Standards

(D243

- 02)

RTP, NC 27711

919

- 541

- 5427

919

- 541

- 5450 (FAX)

Overnight mail address:

US EPA

Mail Code D243

- 02

109 TW Alexander Drive

RTP, NC 27709