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1993 Annual Hydrologic Report Page 9 roads damp. Underground approximately 4800 gallons of water per day, 3 days per week were used. Usage on the surface roads was approximately 12,000 gallons of water per day, 4 days per week, 75% of the year. Water for the surface roads was taken from an approved point of diversion in the Highline canal. A summary of the estimated consumptive use of water is as follows: Total Gallons/ Gallons/ Source Gallons raw ton clean ton Domestic • Surface Facilities 298,000 0.5 0.9 Preparation Plant 3,430,000 6.0 10.2 Mine Miriirig 3,740,000 6.5 11.1 Preparation Plant 3,680,000 6.4 10.9 Underground Roads 750,000 1.3 2.2 Highline Canal Surface Roads 1,872,000 3.3 5.6 TOTAL 13,770,000 24.0 40.9 IMPACTS The total dissolved solids for the mine discharges calculated with average TDS and total flow for the year come out to be 83.0 tons for 001, 1277.8 tons for 002 and 412.4 tons for 004. These discharges represent .113$ of the 1.57 million tons calculated to be carried by the River. During the next year the discharge of TDS is expected to decrease slightly from the Roadside mine and may increase slightly from the Cameo No.l Mine if mining is resumed. Long term discharge from the Cameo No. 1 Mine will cease upon completion of mining. At the Roadside Mine, water is expected to continue to discharge from 002. There was no detectable effect of mining on flows in Cottonwood and Rapid Creeks. Mining advance will be beyond SWGS-02 in the next year or so. An increase in inflows is expected under Cottonwood Creek as mining progress south, but is not expected to significantly influence the flow in the Creek. A stability analysis of the Cameo Refuse Pile No. 1 subsequent to this water year indicated a complicated series of isolated water levels in the CRDA No.l which are closely related to precipitation events. Additional monitoring of isolated zones in