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__ <br />© T e r r a M a t r i x <br />i MONTGOMERY WATSON <br />Mining Group <br />III 1111111111111111 <br />999 <br />RECEIVED <br />November 5, 1997 <br />Nnv ~ ~ 1997 <br />Mr. Tom Kaldenbach <br />Environmental Protection Specialist <br />Division of Minerals and Geology <br />13]3 Sherman St., Room 275 <br />Denver. CO 80203 <br />;]ivision of minerals is Geoloyy <br />RE: Permit No. C-80-003, HG Coal, Response to DMG Review of 1996 Annual Hydrology <br />Report <br />Dear Mr. Kaldenbach: <br />As we discussed on October 24, 1997, HG Coal intends to completely respond to the <br />Division's comments and questions of October 15, 1997 regarding the referenced report as <br />part of its Phase 2/Phase 3 bond release application. We anticipate that the bond release <br />request will be submitted before the end of the year. In the interim, HG Coal would like to <br />briefly address the major concerns raised in the Division's October 15, 1997 letter. <br />Surface Water Quality -Pond HG-8 <br />Comparison of water quality data for samples obtained from pond HG-8 over the last <br />couple years with generally accepted limi[s for livestock consumption indicates that water <br />quality in the pond is suitable for livestock and wildlife use. Observations of cattle, elk and <br />deer over the past several years confirm that all of these animals do in fact use the pond as a <br />watering source. The pond also is used extensively by ducks, small game animals and <br />muskrats. HG Coal believes that water quality in the pond is perfectly compatible with the <br />intended post-mining land uses of livestock grazing and wildlife habitat. <br />Surface Water Quality -LHG and RSP-4 <br />HG Coal believes that the trends in water quality observed in lower Hayden Gulch (LHG) <br />are consistent with predictions made in the original mine permit application and that <br />potential impacts to the Williams Fork River are negligible. We also noted that the flow <br />rates from RSP-4 are within the range predicted in the original PHC (117-408 gpm) and that <br />the high flows observed this year may be at least partially attributable to the two preceding <br />ex[remely heavy snowpack winters followed by an unusually wet summer. <br />P0. Box 774018 Te 1: 970 879 62fi0 Serwng the World's En vrronmental Needs <br />1475 Pine Grove Road Fax 970 879 9048 <br />S[eamboal Springs, Colorado <br />80477 <br />