Full Description

The Alfred Merritt Smith Water Treatment Plant (AMSWTP) supplies 85% of the requireddrinking water for the Las Vegas Valley. The potable water supply for the AMSWTP is LakeMead, which is part of the Colorado River system. Four major waterways carrying untreatedurban runoff from the Las Vegas Valley enter into Lake Mead via the Las Vegas Wash.Recognizing that the valley's urban runoff is a nonpoint source of pollution to the potable watersupply the AMSWTP initiated a pathogen virus monitoring program from November 2000 toNovember 2001. The strategy of this program was to sample the 4 waterways on a monthly basisand then analyze the samples by a combined ICC-RT-PCR method. The targeted viruses werethose already being monitored for in Lake Mead: enterovirus; hepatitis A virus; norovirusgenotype I and II and group A rotavirus. Sample processing methods, elution and concentration,established during the virus ICR study, were also used. Results from the project revealed that in 9of the 12 months during the project period either rotavirus or enterovirus was detected. Also, all ofthe waterways during the testing produced positive results for rotavirus or enterovirus. Neitherhepatitis A virus nor norovirus was detected during this time period. Includes 20 references, tables, figures.

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Edition: Vol. - No. Published: 11/02/2003 Number of Pages: 12File Size: 1 file , 760 KB