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PEABODY COAL COMPANY <br />ROCKY MOUNTAIN DIVISION <br />IOa]E EAST HARVARD AVENUE <br />SUITE 400 <br />DENVER. COLORADO BO2a1 <br />ooal aa] eaoa <br />April 12, 1985 <br />CERTIFIED MAIL <br />RETURN RECEIPT REQUESTED <br />Ms. Sandra Squire <br />Monitoring and Enforcement Section <br />Water Quality Control Division <br />4210 East 11th Avenue <br />Denver, Colorado 80220 <br />Dear Sandy: <br />RE: NONCOMPLIANCE OF PERMIT CONDITIONS, <br />NPDES PERMIT CO-0037656, <br />MESA GRAVEL PIT, <br />ROUTT COUNTY, COLORADO <br />As a follow-up to my phone conversation with you on Wednesday, I wish <br />to report that a sample taken at the Mesa Gravel Pit discharge monitoring <br />point 001 on March 25, 1985, had a total suspended solids (TSS) concentration <br />of 150 mg/1. This exceeded the effluent limit of 45 mg/1 stipulated <br />in NPDES Permit No. CO-0037656. <br />This exceedance is due to the naturally high TSS concentrations in the <br />spring snowmelt runoff. Peabody Coal personnel are planning to survey <br />the pond to determine whether or not dredging will be needed. Surveying <br />is expected to commence in early June at which time the ground will <br />be dry enough to permit heavy equipment to move on site if required. <br />Please contact me if you h e any questions. <br />Sin~Y. ~~~ I ~ ^~ <br />Jl,,~ ~ ~ APR1819$~ <br />Jay ednick <br />Hydrogeologist I. ~ I <br />~,,,; .OL„4'.DI:~CLib.i;Tl•,I,O'~;IG:CI <br />kmt (;JIL.';;:.ul .«.ul.: ';'SOaiC",5 <br />c: Anne Baldrige, CMLR <br />Slade Dingman <br />Craig Jennings <br />Dennis Jones <br />Steve Martin, OSM <br />Tom Wainwright <br />Don Zuli~ <br />