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DEPARTMENT OF NATURAL RESOURCES <br />D Monte Pascoe. Executive Director <br />~ III 1111111111111111 <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Director <br />R ~c nartl D Lamm <br />Gova~nor <br />DATE: June 3, 1983 <br />T0: Inspection File, Bourg Strip, File No. C-021-81 <br />FROM: Susan Mowry c~.-U~,l~h._ <br />RE: Sampling of Pit Water <br />On (4ay 24, 1983 I conducted a partial monthly inspection at the Bourg <br />Strip. At that time the operator had been pumping pit water, which had <br />accumulated in quantities that were unacceptable to the operator, from <br />the pit via a 6 inch aluminum irrigation pipe into Mann Draw which is <br />immediately north of the pit. <br />The pump was operating but no water was being discharged from the pipe <br />initially during my inspection. The operator moved the pump so the <br />intake had access to deeper water and then pumping again proceeded. <br />I took my samples after the operator had the pump moved. Moving the pump <br />stirred up the water contained in the pit and many solids that had <br />settled previously became suspended. My sample therefore may represent a <br />"worst case". <br />I took three samples. The first sample was taken at the pipe outlet <br />after it had run 2 or 3 minutes. The bottles and caps were all rinsed <br />with sample water three times prior to collection of the samples. <br />The water flowing from the pipe was flowing at such a rate that it filled <br />the bottle very rapidly. The bottle was held parallel to the flow at the <br />side of the water column until it was filled to overflowing. The bottle <br />was then immediately removed and tightly capped. <br />The second sample was taken at the lower edge of the flume in Mann Draw. <br />The rate of flow at the flume was much slower. The bottle was placed <br />among the rocks below the flume but was not totally submerged due to the <br />shallow depth of the water. Water was allowed to flow into the bottle to <br />a stabilized level. The bottle was then removed and tightly capped. <br />The third sample was also taken at the discharye pipe in the same manner <br />described earlier. Approximately 5 minutes had elapsed since the first <br />sample was taken. <br />/ep <br />Uoc. No. 3230 <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />