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<br />NIWQP to aggressively reduce selenium loads within the Lower Gunnison River Basin, with <br />benefits realized locally and downstream into the Lower Basin. <br /> <br />Nevada <br /> <br />NPDES Permits <br /> <br />o <br />N <br />a) <br />o.l:- <br /> <br />EP A has delegated the Nevada Division of Environmental Protection (NDEP) authority to <br />issue NPDES Permits. The industrial companies located at the Basic Management, Inc. (BMI) <br />complex have eliminated industrial wastewater discharges to the Las Vegas Wash. The companies <br />now pipe wastewater to lined evaporation ponds. Two of the companies have been issued permits <br />which allow discharge of cooling water to Las Vegas Wash with a limit of no more than 75 mg/L <br />TDS greater than the water supply. Another company has been issued a permit which allows <br />discharge of surface stormwater runoff. <br /> <br />In the past, the Nevada Power Company discharged brackish cooling water from both the <br />Clark and Sunrise Power Plants into the Las Vegas Wash. Permits now prohibit such discharges and <br />the Company treats and recycles water for further cooling before fmal disposition into lined <br />evaporation ponds. The new recycling process has reduced the cooling water requirement by about <br />75 percent. <br /> <br />The City of Las Vegas (CLV), Clark County Sanitation District (CCSD), and the City of <br />Henderson (CQH) were issued new discharge permits in July, 2001. The permits allow a flow up <br />to 91 million gallons per day (MGD) for the CL V, 11 0 MGD for the CCSD and 42.5 MGD for the <br />CQH. The new permits continue the standards from the previous permits including Waste Load <br />Allocations (WLA), for total phosphorus and total ammonia, whole eftIuenttoxicity testing, cWorine <br />residual limits, and an ambient monitoring program in Las Vegas Wash and Las Vegas Bay. The <br />WLA for total phosphorus will apply from March through Qctober and ammonia from April through <br />September. The WLA does not apply to other periods of the year. The existing and proposed <br />NPDES permits recognize that the WLA is based upon each Las Vegas Valley discharger's <br />proportionate share of flow as approved by NDEP and agreed to by each Las Vegas Valley <br />discharger. <br /> <br />Both the CL V and CCSD continue providing reclaimed water from their central treatment <br />facilities. The CL V and the Las Vegas Valley Water District (L VVWD) completed ajointly owned <br />10 MGD satellite reclamation and distribution facility in 2001, and the CCSD and L VVWD will <br />complete another jointly owned 5 MGD (expandable to 10 MGD) satellite reclamation and <br />distribution facility in 2002. Both of these facilities will provide reclaimed water for turf irrigation. <br /> <br />The CCSD makes direct discharge of part of LaugWin's wastewater effluent into the <br />Colorado River, and reuses the remainder on the local golf course. The CCSD estimates that by the <br />year 2003, Laughlin, a resort area located adjacent to the Colorado River, will have 4,000 acre-feet <br />per year of treated eftIuent available, of which 550 acre-feet per year will be reused, with the <br /> <br />4-21 <br /> <br />c <br />