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(Page 2) <br />L MINE ID # OR PROSPECTING ID #M-80-244 <br />INSPECTION DATE 8-i-99 INSPECTOR'S INITIALS HK <br />OBSERVATIONS <br />The Division conducted a monitoring inspection of the NPDES Discharge Points with Dr. Harry <br />Posey of the Division and Mr. Scott Lewis and Mr. Scott Barnes of CC&VG. <br />During the Month of May, CC&VG had reported to the CDOH&E that they had exceeded the 30 day <br />average for WAD CYANIDE at Discharge point OOlA also known as AG 1.5 by DMG and also exceeded <br />the daily maximum zinc concentration at discharge point 002A also known as the Carlton Tunnel <br />discharge point by DMG. Dr. Posey as the resident geochemist for the Division wanted to <br />personally visit these areas to discuss probable causes for the exceedance with the <br />operators.The physical inspection began around the Beacon Hill area where grading and <br />backfilling of the underground workings was taking place for the anticipated expansion of the <br />Phase III Leach Pad Area.Continued the inspection to the under drain discharge area for the <br />Valley Leach Facility. Both 24" pipes and the 4" pipe were discharging. No samples were <br />collected. A brief discussion was held about the probable causes for the detection of Wad <br />Cyanide at the outflow area of these discharge and at NPDES Discharge point OOlA OR ALSO <br />KNOWN AS AG 1.5. Inspected AG 1.5 OR OOlA Discharge point which is located apex. 400 feet <br />down stream of the under drain discharge area. Approximately 400gpm was flowing through the <br />flume at the time of the inspection.A brief discussion about the sampling procedure was held <br />with the operators representatives. <br />Continued the Inspection to the Carlton Tunnel Discharge poin[ 002A which is located APPX. <br />4.5 miles down stream of AG1.5 or 001A Discharge Point.The discharge from the Tunnel is <br />routed through a series of ponds before it discharges to Four Mile Creek.All the ponds were <br />full and discharging at the time of the inspection. Walked down stream to where the discharge <br />reaches Four Mile Creek A brief discussion was held about the probable causes of the <br />exceedance of the daily maximum zinc concentration for the Month Of May. <br />After the physical inspection, we held a brief discussion with Mr. Mason Estes, CC&VG'S <br />resident geochemist about the efforts to date by CC&VG in trying to identify the sources for <br />these exceedenaces.He stated that they have some ideas and have also asked Mr. Terry Mudder <br />who is a proven expert in geochemistry of mine ore and waste to assist them in determining <br />the cause and should have some results soon. The Division requested to have the results of <br />their findings forwarded as soon as it becomes available. <br />