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• • iii iiiiiiiiiiiuiii <br />999 <br />SNOWMASS COAL COMPANY <br />P.O. Box 1354 <br />Palisade, Colorado 81526 <br />(303) 464-7951 <br />April' 39`i~ k988: , ~, .,;--- <br />._ _ <br />i^: n •~ •~^[1 <br />Candace M. 'Phompson <br />Mined Land Reclamation Division <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203-2273 <br />Re: 1987 Annual Hydrologic Report <br />Permit No. C-81-025 <br />Dear Candy: <br /> <br />Your letter to Snowmass dated January 4, 1988 noted a discrepancy <br />in reported bicarbonate levels for North Thompson Creek. Your <br />letter pointed out that bicarbonate levels had been reported in <br />the 130 to 170 mg/1 range until the 1987 AHR which reported <br />levels between Z and 3 mg/1. <br />The enclosed letter from SOLTESCO explains the discrepancy. The <br />bicarbonate levels reported for the 1987 AHR were in error by a <br />dilution factor of 50. The values will be corrected in the 1988 <br />ARR submittal. <br />Thank you for bringing this problem to our attention. <br />Sincerely, <br />. Gb~~~ <br />Jim Stover, P.E. <br />Chief Engineer <br />Enclosure <br />