Record Display for the EPA National Library Catalog


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,
Year Published 1982
Report Number EPA/600/2-82/072; EPA-805680-010
Stock Number PB82-249368
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
Library Call Number Additional Info Location Last
NTIS  PB82-249368 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
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.