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WATER QUALITY MONITORING <br /> From 1980 to 1990 each site was evaluated twice a month for physical and chemical analysis. <br /> From 1991 to the present, testing has been reduced to once a month and biological monitoring <br /> added. Adjusted cost, based on a once -a -month testing program, would be $7,875.00 per site. <br /> WATER QUANTITY MONITORING <br /> Water quantity monitoring for the BBC Watershed includes three stream -flow recorders and two <br /> precipitation recorders. For the purpose of averaging cost, the two precipitation stations were <br /> considered as one, since data processing takes only half as much time. Average cost has been <br /> projected at $2,437.00 per station. Future cost should be lower due to conversion to automated <br /> equipment in 1994. <br /> The table on the following pages shows specific cost for each year for the stormwater utility. <br /> Also shown, is unit cost for capital projects. <br /> STREET DRAINAGE MAINTENANCE <br /> Additional cost related to stormwater and water quality is maintenance of the street drainage <br /> systems. The Road Maintenance and Operations Division has provided the following unit cost for <br /> maintenance and repairs: <br /> • Catch Basin Clearing $8.99 per basin <br /> • Catch Basin Cleaning $8.81 per basin <br /> • Drywell Cleaning $198.00 per drywell <br /> • Drywell Repair $1000.00 per drywell <br /> • Street Sweeping $24.85 per lane mile <br /> • Ditching $2.07 per lineal foot <br /> Clark County Storm & Surface Water Utility April 1996 <br /> Maintenance & Operations Cost Page 3 <br />