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y- ' H - G GOAL COMPANY z ~ D~r ~~ <br />:/ <br />MINE OPERATIONS <br />• P. O. BOX 771 <br />HAYDEN, COLORADO 81939 <br />(303) 276.9116 <br />• <br />December 5, 1988 <br />Mr. Gregg R. Squire <br />Colorado Mined Land Reclamation Division <br />215 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203 <br />RE: REQUEST FOR TECHNICAL REVISION <br />PERMIT NO. C-80-003 <br />MODIFICATION OF SIIRFACE WATER MONITORING <br />Dear Mr. Squire: <br />BUSINESS OFFICE <br />5731 STATE HIGHWAY 13 <br />MEEKER, COLORADO 97661 <br />(30J) 8264451 <br /> <br />DEC 7 1933 <br />Y~iiI~~ED i..1:i•JC~? <br />RECL~d~l4ATiG;~J IDiViS101`] <br />The following information is submitted as a request for <br />a Technical Revision to the H-G Coal Company Mining Permit No. <br />C-80-003. The request provides for a modification to the surface <br />water monitoring requirements. <br />The current surface water monitoring program for the <br />H-G mine includes four sites. Two of the sites are located at the <br />reclaimed minesite along Hayden-Gulch and two of the sites are <br />located in the vicinity of the loadout along Dry Creek. <br />The current monitoring frequency is semi-annual and <br />coincides with periods of high runoff volumes from precipitation <br />events. We are uncertain as to the rationale behind sampling <br />following a precipitation event and request at this time to drop <br />this requirement. This procedure is not representative of average <br />conditions found at the sites. In fact, the current procedure is <br />likely to show only worst case due to the temporary effects of <br />excessive stream loading during precipitation events. <br />We propose to maintain the current semi-annual monitoring <br />frequency, but sample in the spring and fall corresponding to <br />periods of natural high and low flows in Hayden-Gulch and Dry <br />Creek. <br />7~ fe /~si,.,-. was -~ <br />QI~- ~IQ - s6 . <br /> <br />