Laserfiche WebLink
NO-CONTINENT RESOURCL. INC. <br /> PRODUCERS OF THE FAMOUS COAL BASIN COKING COAL <br /> BOX 158 <br /> CHICAGO OFFICE CARBONDALE, COLORADO 81623 <br /> TELEPHONE <br /> 105 STREET 13031963 2581 <br /> ' CHIC AGO AGO 60603 <br /> TWX <br /> 910 929 6894 <br /> August 17, 1983 910 929 6897 <br /> REC- 1 <br /> AUG 19 1983 <br /> Mr. Jim Herron <br /> - Mined Land Reclamation Division MINED LAND RFCI,MOATInN D,b,ISi%, <br /> 423 Centennial Bldg. Colo. Dapl, of pja;ura! Resources <br /> 1313 Sherman St . <br /> Denver, Colorado 81203 <br /> Re : Coal Basin C-017-81 <br /> Old Stipulation No. 7B Due August 31, 1983 <br /> Dear Jim: <br /> Enclosed is a survey of the Dutch Creek flume and the <br /> unmodified channel above the flume . As you can see by the <br /> calculations , both far exceed the 1000 efs generated by the <br /> 100-year storm event which occurred July 24 , 1977. <br /> If you look at the cross-section and computations <br /> for the flume you will also note that I include only the con- <br /> crete part of the flume. The trapezoidal sides above the <br /> concrete would easily handle twice the water in the concrete <br /> portion. <br /> Please advise me if you have any comments or questions . <br /> Sincerely, <br /> Environmental Coordinator <br /> DWBowman:ms <br /> Enclosures <br /> • <br />