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III. COMMENTS • COMPl1ANCE <br />flelow an commonts on iho ~nsWCllm iho cortvnents irx1UJ0 :r~x.~kv cn ~ ~f c><re?rvatlotn mcxo awrr~, Hw .rslwctpn. CtpnmOnh <br />plsp c1os:.tlUe OnY EN1fOfCOTOn1 OCflOns Ic;kon CflYinQ fho infr7ocl~nr ~~'x: '1~~. IUCIs OI OvldpnCO SuUpCttitsg th0 On1WC6mOn1 OCfI(Xl <br />The purpose of this coal partial inspection was to survey the sedimentation pond. The <br />survey was accomplished by the undersigned and Mr. Harry Ranney, Environmental <br />Protection Speclallst, of the Divlslon of Minerals and Geology. Equipment used to make <br />the survey was o Trimble 5700 GPS at settings of 2 centimeters horizontal and 3 <br />centimeters vertical accuracy. <br />HYDROLOGIC BALANCE <br />The mine site, including the pond, was covered with approximately 4 <br />inches of snow. There was no surface runoff. There was a trickle of <br />water entering the pond from a pipe in the northeast corner, but there <br />was no standing water in the pond (the bottom was soft. <br />SUPPORT FACILITIES <br />The sedimentation pond was surveyed. Recorded survey data was returned <br />to the office and reduced, volume calculations were made, and a map of <br />the pond produced. Findings from this information is that the existing <br />volume of the pond to the elevation ofi the primary spillway intake (from <br />the bottom) was 6,054 cubic feet (224 cubic yards or 0.14 acre feet). <br />The existing volume of the pond from the bottom to the invert of the <br />emergency spillway was 3.66 acre feet. <br />Seven pictures were taken. Pictures 55-02-12-04-246, 247, and 252 are of <br />survey related activities. Six are printed here, and all are on file at <br />the Division. <br />~:: •~~+~ <br />- _ yl~•bA~. . ~ I <br />s ~ ` ~ ~ a ~ ~~+ ~ µ <br />z '< '~ <br />~~~L <br />.I ~• <br />.~ 1 . ` I • - i~ll~ I L~ <br />.~ ~ ., <br />.~~ r i~`. ~ ii ' <br />-: ,.. ~' ~ .. ~ .'f'ir . ~+~•~'ti <br />