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Cam" ~~rc <br />STATE OF <br />~lll Illlllllllllllll <br />999 <br />COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />pepdnmonl qi Natural Reaiurces <br />1 { 1 f Sherman 51., Roam 21 S <br />Dcnvcr. Grlur,tJo HIl?U 4 <br />Phunv' 11011 HLfi-1Sfii <br />FAS: I tU 4i H l'~HI UL <br />October 15, 1997 <br />Mr. Michael R. Neumann <br />Senior Scientist <br />TerraMatrix Inc. <br />P.O. Box 774018 <br />Steamboat Springs, CO 80477 <br />Re: 1996 Annual Hydrology Report for H-G Mine, Permit N. C-80-003, <br />(contained is "Hayden Gutch Miae 1996 Annual Reclamation Report", <br />received by Division on February 14, 199' <br />Deaz Mr. Netunaztn: <br />DEP,hRTivIENT OF <br />NATURAL <br />RESOURCES <br />Ruy Rumer <br />Gummrn <br />lame+5. Luchhzad <br />Frc wi~r D~rrcvu <br />hm hael tl. Long <br />Drouu~n Dkeaor <br />The Division has completed its review of the above-referenced report and has the following <br />comments and questions. <br />Report's fulfillment of reRorting requirements <br />Monitoring requirements aze found in Volume 1B of the permit application. The two surface <br />water sites, UHG-1 and LHG-l, aze to be monitored as specified in Section 2.05.6 of the permit <br />application (modified by TR-56). The operator has committed to monitoring the six spoils <br />springs RSP-1 through RSP-6 as described in Section 4.05.13 of TR-63. Dischazge limitations <br />for the two remaining sediment ponds HG-8 and 003 aze also set forth in Section 4.05.13 of TR- <br />63. The three ground water monitoring wells, HG-1 and HG-2, and UC-2 aze to be monitored as <br />specified in Section 2.05.6(3)(b)(iii), Volume 1 B of the permit application. <br />The report fulfills for 1996 the annual hydrology reporting requirements of Rule 4.05.13(4)(c) <br />and the permit, with the following two exceptions. <br />Water levels in well UC-2 were not reported as required in Section 2.05.6(3)(b)(iii), <br />Volume 1 B of the pet~rtit application (this is the only measurement required in this well). <br />Please explain the reason for not reporting the water level in UC-2. <br />2. The operator reported in a letter to the DMG dated February 27, 1997 that "problems with <br />instruments" prevented the field measurement of the dissolved oxygen and turbidity in <br />