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Mid-Continent Resources, Inc. <br /> PRODUCERS OF THE FAMOUS COAL BASIN COKING COAL <br /> J1ID-COSTINENT RESOURCES,INC. <br /> 801 Centennial Street <br /> 625 PLAINFIELD ROAD-SUITE 220 Suite 406 Telephone: <br /> WILLOWBROOK,ILLINOIS 60521 Glenwood Springs,Colorado 81601 (303)945-4958 <br /> February 5, 1991 <br /> RECEIVED <br /> Pat Nelson FEB 0 8 199 <br /> Permits & Enforcement Section <br /> Water Quality Control Division Mined Land <br /> 4210 East 11th Avenue <br /> Denver, CO 80220 !�2clama+ian 1�iv9Sa0n <br /> RE: Non-point sources. <br /> .Dear Ms. Nelson: <br /> Mid-Continent Resources is, as you know, regulated by the Mined <br /> Land Reclamation Division (MLRD) . MLRD has asked that we confirm <br /> with the Water Quality Control Division that we are correct in <br /> describing as non-point source discharge the runoff from areas of <br /> the property with (under the MLRD regulations) "Small Area <br /> Exemptions. " <br /> Under the MLRD regulations drainage from areas affected by surface <br /> coal mining operations is not required to be passed through <br /> sediment ponds and treatment facilities where: <br /> g4.05. 2(3) . . .the disturbed surface drainage area within <br /> the total disturbed surface area is small and <br /> there is no mixture of surface drainage with a <br /> discharge from underground mine working; <br /> The areas under review are located at various sites around the mine <br /> permit area, consist of less than 1 acre in size, and have no <br /> contact with mine discharge. Calculations of sediment contribution <br /> from these areas, (derived from the universal soil loss equation) <br /> demonstrate that runoff from these areas contributes minimal <br /> sediment. <br /> Area Size Tons <br /> Annually <br /> 1 0.12 0.23 <br /> 2 0.08 0.10 <br /> 3 0.62 3.60 <br /> 4 0.44 1.52 <br />