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<br />-STATE OF COLORADO flIC HARD MM, Governor <br />DEPARTMENT OF NA RAL RESOURCES <br />DAVID H. GETCHES, Executive Director <br />1313 Sherman St., Room 718, Denver, Colorado 60203 866-3311 <br />III IIIIII III IIII III <br />999 <br />DATE: September 3, 1985 <br />T0: Tom Gillis <br />FROM: Steve Renner '~ <br />RE: Red Canyon Mine - AHR Review <br />I. MONITORING REDUCTION REQUEST <br />Recommendations are as follows: <br /> <br />G eoloBic el Survey <br />Boartl of Lentl Commisslonera <br />Mln ad Lend Raclem etlon <br />D ivlalon of Mlnes <br />Oil antl Gaa Consarvetlon Commlaalon <br />D lvlslon of Perks & Outtloor Retreatlon <br />Soll Consarvetlon Board <br />Water Consarvetlon Board <br />D iv talon of Water Res ourcaa <br />Division of Wlltlllfe <br />A. Refuse Piezometers - Quarterly water levels, field parameters and an <br />annual full suite ground water quality analysis from piezometers <br />R-1, R-3 and R-6, which will be taken in June. Piezometers R-2, R-4 <br />and R-5 will be measured for depth to water on a quarterly basis. <br />Any persistent springs or seeps should be noted on a map of the pile. <br />B. Pond Piezometers - Monthly water levels and semi-annual field <br />parameters on piezometers P-1 and P-3. Field parameters will be <br />measured in June and October. If an unusual increase in water level <br />is noted in any piezometers, field parameters will be measured <br />monthly. Piezometer P-4 may be dropped from the monitoring program. <br />C. Coal Seam Completions - Quarterly water levels and semi-annual field <br />parameters on Wells D-1, E-1 and F-1. Field parameters will be <br />measured in June and October. <br />D. Alluvial Com letions - Quarterly water levels and semi-annual field <br />parameters June and October) at well A-1. Piezometers A-4, A-6, <br />A-9 and A-11 may be dropped from the monitoring program at this time. <br />E. Springs - Spring No. 2 may be eliminated from the monitoring program. <br />F. Underground - Dishcarge measurements should be made when mine <br />personnel are pumping mine inflow water. Instead of a set <br />measurement schedule, an approximate monthly measurement will be <br />made. <br /> <br />