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GRAND VALLEY COAL COMPANY <br />r.o. aox 70 <br />Loma, Colorado 81524-0070 <br />(970) 858-3608 <br />January 9, 1996 <br />Mr. Dan Mathews <br />Division of Minerals & Geology <br />2148 Broadway; #C-5 <br />Grand Junction, CO 81503 <br />Re: Midterm Review, Munger Canyon Mine <br />CO-81-020 <br />Deaz Mr. Mathews, <br />pECEIVED <br />~~;~; ~ ~ 1996 <br />ay~pn c1 Minerals & Geology <br />GrandJunaion <br />Enclosed aze revisions to TR-10 you requested by telephone. <br />iiiiiiiiiiiiiiuhi <br />999 <br />1. Table 2.5-2 has been corrected to indicate the correct number; as well as, the addition of <br />temperature to the list of parameters. <br />2. Reference to the 1982 table has been eliminated. <br />3. As we discussed, I have attempted to clarify the monitoring provisions shown on Pages <br />2.5-1 and 2.6-. Although not requested, GVC has substituted well GW-3 for GW-6 since <br />G W-6 has been dry since its installation. A new Table 2.5-3 with flow rating charts for <br />sampling locations is enclosed. <br />4. The omitted sentence has been added to Page 3-I5. <br />Thank you for your assistance and feel free to contact me if you requve additional information. <br />Sincerely, <br />John M. Walters <br />Manager of Mine Services <br /> <br />