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OAR Box 1158 

Prepped by RyanDugan 

Document Number: 

28) l-C-4 

Docket Number: 

A-88-02 

Printed 4/28/2008 2:34:12 PM Sheet 28 of 349 
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MIDWEST RESEARCH INSTITUTI 

4505 Creedmoor Roai 

Raleigh, N.C. 2761: 

Telephone (919) 781-575i 

January 22, 1985 

A-88-02 

x-c-q 

Mr. Claude Theisen, 

T&S Brass and Bronze 

Route 4 

Old Buncombe Road 

Travelers Rest, S.C. 

Dear Mr. Theisen: 

Vice President 

Works 

:'i 

29690 JAN I 81991 1 

J 

EPA AIR DOCKET 

Midwest Research Institute (MRI) is currently under contract 

(Contract No. 68-02-3817) with the U. S. Environmental Protection Agency 

(EPA) to study air emissions of chromium from several different source 

categories including chromium plating operations. As noted in 

Enclosure 1, MRI has been designated as an authorized representative of 

EPA to perform this study under Section .112 of the Clean Air Act. 

In our telephone conversation on January 11, 1985, I summarized 

the information that we are presently collecting on chromium plating 

processes and emission control techniques. I will be contacting you 

again within the next week to discuss this information. The information 

you provide will be used in deciding whether or not to proceed with the 

development of an air emission standard for chromium plating operations. 

We appreciate any assistance you can give us in this matter. If 

you have any questions, please contact me or Ms. Barbara Duletsky at 

(919) 781-5750. 

Sincerely, 

^/<_/i4rs^ <JL- OWX* / 

Richard C. Cooper ' 

Environmental Scientist 

Enclosure 

/• 

Principal Laboratories 425 Volker Boulevard, Kansas City. Missouri 64111 
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MtO sis,,. 

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 

Office of Air Quality Planning and Standards 

Research Triangle Park,cNorth Carolina 27711 

DESIGNATION OF AUTHORIZED REPRESENTATIVE 

FOR STANDARDS OF PERFORMANCE FOR MEW STATIONARY SOURCES (SECTION 111) 

AND NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS (SECTION 112) 

Midwest Research Institute is hereby designated an Authorized 

Representative of the Administrator of the United States Environmental 

Protection Agency for the purpose of assisting in the development of 

standards of perfonnance under 42 U.S.C. 7411 and national emission 

standards for hazardous air pollutants under 42 U.S.C. 7412 for 

calciner. and dryers, mercury, asphalt concrete, magnetic tapes, plastic 

parts, aluminum extrusions, elastomeric fabrics, secondary brass and 

bronze, portland cement, resilient flooring, ethylene dichloride, 

epichlorohydrin and chromium under Contract Number 68-02.-3817. 

This designation is made pursuant to the Clean Air Act, 42 U.S.C 

7414. The United States Code provides that, upon presentation of this 

credential, the Authorized Representative named herein: (1) shall have 

a right of entry to, upon, or through any premises in which an emission 

source is located or in which records required to be maintained under 

42 U.S.C. 7414(a)(1) are located, and (2) may at reasonable times have 

access to and copy any records, inspect any monitoring equipment or 

method required under 42 U.S.C. 7414(a)(1), and sample any emissions 

which the owner or operator of such source is required to sample. 

Authorized Representatives of the Administrator are subject to the 

provisions of 42 U.S.C. 7414(c) respecting confidentiality of methods or 

processes entitled to protection as trade secrets, as implemented by 

40 CFR 2.301(h) (41 FR 36912, September 1, 1976). 

Date: @ST 1 S WM 

Designation Expires: September 30, 1987 

•/r^Gerald A. Emi son 

Director 

Office of Air Quality Planning 

and Standards 

£.