Record Display for the EPA National Library Catalog
RECORD NUMBER: 2 OF 3
|OLS Field Name||OLS Field Data|
|Main Title||Assessment and implications of bacterial regrowth in water distribution systems /|
|Author||Olson, Betty H.|
|CORP Author||California Univ., Irvine.;Municipal Environmental Research Lab., Cincinnati, OH.|
|Publisher||U.S. Environmental Protection Agency, Research and Development, Municipal Environmental Research Laboratory,|
|Report Number||EPA/600/2-82/072; EPA-805680-010|
|Subjects||Water--Distribution. ; Water-supply. ; Bacterial growth.|
|Additional Subjects||Bacteria ; Water distribution ; Potable water ; Growth ; Microorganisms ; Water pollution ; Particles ; Turbidity ; Water quality ; Drinking water ; Pathogens|
|Collation||266 pages : illustrations ; 28 cm|
Two water distribution systems were studied over a 1-year period. Temporal fluctuations in a number of physical, chemical and biological parameters were examined. Total and pigmented bacterial counts, total coliforms, and fecal coliforms were determined at four locations within each distribution system on a bimonthly basis and on a monthly basis at source locations. Scanning electron microscopy demonstrated bacteria associated with pipe surfaces, and with about 1 to 17 percent of suspended particles in the untreated groundwater system. Bacterial counts increased from source to site locations in both distribution systems, suggesting that regrowth occurred. The largest increases were noted in the unchlorinated Garden Grove System, but the magnitude of increases was site dependent.
Caption title. "June 1982." Includes bibliographical references. "EPA-600/2-82-072." Microfiche.