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<br />The active treatment cost proposal from Environmental Reclamation Inc. received during <br />July 1999 identified a estimated cos[ of $9.43/1,000 gallons treated. This cost estimate <br />includes all labor, operating materials and equipment, and equipment replacement costs <br />associated with the active treatment system. <br />Estimated annual maintenance phase active water treatment system costs: <br />13.737,600 gallons / 1,000 gallons ($9.43/1,000 gallons treated) _ $129,546 <br />During the summer months of the annual period it is anticipated that the enhanced water <br />evaporation system would be operated 5 months of the year at approximately 45 gpm <br />with the installation of the slurry wall. <br />Estimated annual maintenance phase enhanced evaporation system costs: <br />Labor (Third-party contractor $30/hour includes wages, benefits, and profit) as currently <br />charged by San Luis Valley EarthMovers. <br />1 individual ($30/hour) (173 hours/month) (5 months) _ $25,950 <br />Monthly labor cost $25,950 / 5 months = $5,190 <br />Operating/Maintenance Cost <br />Electricity (Enhanced Evaporation System= $5,000/month <br />Estimated monthly electrical cost from summer 1999 was approximately $5,000/month <br />for estimated 100 gpm system. <br />Augmentation System electricity = $900/month <br />Estimated experienced 1999 augmentation cost was approximately $8,000/month with a <br />400 gpm augmentation rate, therefore a 45 gpm augmentation rate would be <br />approximately 11.25% of the $8,000/month. <br />Annual O/M and replacement cost = ] 0% of original installation cost for mechanical <br />evaporators and pumping equipment = 0.10 ($120,000) _ $12,000 <br />Monthly O/M cost = $12,000 / 5 months = $2,400 <br />Protit and Overhead (I S%) _ $5,000 + 900 + 2,400 = (0.15) ($8,300) _ $1,245 <br />Total estimated monthly costs = $5,000 + $900 + $2,400 + $1,245 = $9,545 <br />Total estimated annual costs = $47,725 <br />Alternative 2. Total Annual Costs = $177,271 <br />Monitorine Cost: <br />Alternative 1 and 2: <br />CDPS discharge monitoring (Weekly monitoring during the discharge season) <br />7 months (1 sample/week)(4 weeks/month)($200/sample) _ $5,600/yeaz <br />All Alternatives: <br />CDMG Compliance Sampling <br />Monthly monitoring of 6 wells presented in TR-26 for parameters presented in TR-26 <br />6 samples (12 months/year) ($100/sample) _ $7,200 <br />