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• • <br />~~ TRaeees m~~i~c inc. <br />July 21, 1988 <br />CERTIFIED P764980356 <br />Mr. Gregg Squire <br />Colorado Mined Land Reclamation Division <br />215 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203 <br />Dear Gregg: <br />Subject: Technical Revision TR-42. Termination of <br />Ambient Air Monitoring Program at Trapper Mine. <br />Early in 1988, Trapper petitioned the Colorado Air Pollution Control Division <br />(APCD) to terminate the requirement of maintaining an active ambient air moni- <br />toring program. On June 30, 1988, approval was received from the APCD to dis- <br />continue the program. As a result, this technical revision is submitted. <br />Enclosed is revised permit page 4-170 which has been updated to reflect the <br />discontinuance of the ambient air monitoring program. Also included as page <br />4-170A is the letter of approval from the APCD. Finally, permit page ii-12 <br />has been corrected to include the letter of approval from the APCD as Figure <br />4.7-1. <br />Please contact me if you require additional information to process this <br />request. <br />Sincerely, <br />~~~ <br />H. Bruce Humphries <br />Sr. Env. Engineer <br />LWki/jb [JUL21] <br />Enclosure <br />pc R.L. Fanyo <br />L.W. Henderson <br />file <br />P.O. Box 187 Craig, Colorado 81626 (303) 824-4401 <br />