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Mr. Peter V. O'Crnor <br />Page 3 <br />September 23, 1985 <br />Field tests will be conducted on consolidated mill tailings that have <br />been covered with a minimum two foot thick rock capillary barrier <br />to determine the best soil conditions for establishing vegetation. <br />These field tests will provide useful information regarding soil <br />amendments, seed mixtures, and grass yields at this elevation during <br />a two-year study period under actual climatic conditions. <br />2. The tailings pond will be lined with a commercially available liner. <br />A weather and sun resistant Hypalon liner 10 mils. thick will be ~~v' <br />placed on compacted, decomposed granite in the tailing pond area <br />to prevent the movement of water through the mill tailings. <br />3. Two monitoring wells will be located downgradient from the tail- <br />ings pond to analyze ground water for contamination. These wells <br />will be drilled on the northwest side oP the lower access road below <br />the tailings pond. These two wells will be spaced 200 feet apart, <br />and will be drilled to a minimum depth of 80 feet. The north- <br />eastern most oP the U.S. Bureau of Mines' test holes will also be <br />used to monitor the amount and quality of the ground water below <br />the tailings impoundment area. <br />4. There are no wells in the area upgradient from this mill and tailings <br />impoundment site. The closest well downgradient from this millsite <br />is located in Summerville, which is situated 4000 feet to the south- <br />east. <br />5. In order to assist in the reclamation of the tailings impoundment <br />area, the operator will make every effort to salvage the fine over- <br />burden material and separate it from the topsoil. This fine material <br />will be removed and stockpiled within the permit boundary area in <br />the same location that the topsoil will be stockpiled. <br />`:y~afee "Storage <br />1. The water storage areas that will be utilized by Gold Hill Ventures' <br />mill consist of underground mine workings that are located in the <br />Time, Wynona, and Hazel A. mines. The Time mine's portal is <br />located 45 feet below County Road No. 52, and extends 395 feet in <br />a southeasterly direction towards the Wynona mine, where it has <br />been driven 190 feet along the Time vein. The Time mine is con- <br />nected with the first level of the Wynona mine by way oP a 50 foot <br />deep winze. The Wynona mine shaft is 210 Yeet deep, and has two <br />main working levels that extend 1500 feet towards the northeast <br />and southwest. These two levels were driven along the Wynona- <br />Slide vein at a depth of 100 feet and 205 feet below the Wynona <br />mine shaft collar. The Hazel A. mine is a crosscut driven 615 feet <br />towards the northwest. All of these mines contain numerous small <br />drifts and subsidiary workings, that amount to an additional 1000 or <br />more feet of underground workings. The average dimensions of <br />these mine workings is 5 by 7 feet. This amounts to a minimum of <br />tti~~ <br />