Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Relationship Among Turbidity, Particle Counts and Bacteriological Quality Within Water Distribution Lines.
Author McCoy, W. F. ; Olson, B. H. ;
CORP Author California Univ., Irvine.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1986
Report Number EPA-R-809817;
Stock Number PB87-166799
Additional Subjects Turbidity ; Distribution systems ; Water distribution ; Water pollution ; Bacteriology ; Particles ; Deterioration ; Fluorescence ; Counting methods ; Potable water ; Reprints ; Foreign technology ; Drinking water
Library Call Number Additional Info Location Last
NTIS  PB87-166799 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 9p
The turbidity standard for water quality was evaluated in relation to total particle counts, heterotrophic plate counts and epifluorescence direct cell counts of three different municipal drinking-waters. Turbidity and particle counts were directly proportional. There was no predictable relationship between bacteriological quality and turbidity or particle counts. Heterotrophic plate counts underestimated epifluorescence direct cell counts by a factor of at least 500. Water quality degradation occurred in municipal drinking-water systems because of intermittent short duration events that resulted in high turbidity, particle counts and heterotrophic plate counts. Further, for all parameters measured variability increased with distance traveled within a pipe except for ground water.