Mr. Michael Cassidy, Staff EHS Specialist Environment, Health, Safety Kohler Company 444 Highland Drive, Mail Stop 009 Kohler, Wisconsin 53044

Dear Mr. Cassidy:

Thank you for your efforts in coordinati ng the August 5, 2008 and August 11, 2008 site visits by U.S. Environmental Protection Agen cy (EPA) and RTI personnel to the Kohler Company (Kohler) facilities in Spartanburg, South Carolina, and Kohler, Wisconsin. We appreciate the time that you and other representatives at Kohler set aside for discussing and showing your manufacturing process.

Enclosed are drafts of the tw o trip reports (Enclosu re 1) that have been prepared based on the information obtained during our site visits. We would appreciate your reviewing the reports for any errors or omissions. You may return the en closed copies of the reports with your written comments. Since these reports will eventually beco me a part of the public record, we want to portray your operations as accurately as possible. A copy of the final version of each report incorporating your comments will be sent to you for your records.

The custody receipt for the trip reports are also enclosed (Enclosure 2). Please sign and date the form to acknowledge receipt of the reports and return a copy of the form to: Mr. Roberto Morales; U.S. Environmental Prot ection Agency; Office of Air Quality Planning and Standards; IO/PRRMS (MD-C404-02); 109 T.W. Alexander Drive; Research Triangle Park,

North Carolina 27711.

If you believe that disclosure of any specifi c information contained in the trip reports

would reveal trade secrets or other confidential in formation, you should clearly identify the specific information. Please do not label the enti re reports as “confiden tial” if only certain portions consist of trade secret information. If the EPA determines that there is a need to disclose such information, we will need, at that time, the following to support your claim:

1. Measures taken by Kohler to guard agai nst undesired disclosure of the specific information to others;2. The extent to which the specific informa tion has been disclosed to others and the precautions taken in connection therewith;

3. Pertinent confidentiality determinations, if any, by other Federal agencies (furnish a copy of any such determination, or re ference to it, if available); and

4. Whether Kohler asserts that disclosure of the specific information would be likely to

result in substantial harmful effects on Kohl er’s competitive position, and, if so, what those harmful effects would be, why they should be view ed as substantial, and an explanation of the causal relationship between disclosu re and such harmful effects.

Any specific information subsequently determ ined to constitute a trade secret will be protected under 18 U.S.C. 1905. If no claim of confidentiality accompanies the information when it is received by EPA, it may be made av ailable to the public by EPA without further notice (40 CFR Part 2.203, September 1, 1976). Any specific information subsequently

determined to constitute a trade secret will be protected under 18 U.S.C. 1905. However, all emissions data will be available to the public. A clarification of the information EPA considers to

be emissions data is co ntained in Enclosure 3.

We respectfully request that you submit your review comments on the trip reports by November 7, 2008. If you concur with the inform ation contained in the reports, we would appreciate a letter to that eff ect. In addition, please indicate in your letter the specific parts of the reports, if any, that Kohler c onsiders to be confid ential. If we do not receive a response by November, 7 2008, the reports will be cons idered non-confiden tial and accurate.

Thank you for your cooperation. The informati on supplied by Kohler will be most helpful in our study. If you have any questions, please call Mr. Jeff Telander of my staff at (919) 541-

5427 or Mr. Rick Marinshaw of RTI at (919) 316-3735.

Sincerely,

Steve Fruh Group Leader Metals and Minerals Group Office of Air Quality Planning and Standards

3 EnclosuresEnclosure 3