Record Display for the EPA National Library Catalog


Main Title Persistence and detection of coliforms in turbid finished drinking water {microform} /
Author Seidler, Ramon J. ; Evans, Thomas M.
Other Authors
Author Title of a Work
Evans, Thomas Morgan
CORP Author Oregon State Univ., Corvallis. Dept. of Microbiology.;Municipal Environmental Research Lab., Cincinnati, OH.
Publisher U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory,
Year Published 1982
Report Number EPA/600/2-82/054
Stock Number PB82-227752
Subjects Drinking water--United States ; Public health--United States
Additional Subjects Potable water ; Chlorination ; Bacteria ; Turbidity ; Disinfection ; Efficiency ; Coliform bacteria ; Survival ; Seasonal variations ; Detection ; Drinking water ; Water pollution detection
Library Call Number Additional Info Location Last
NTIS  PB82-227752 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 56 p. ; 28 cm.
To define interrelationships between elevated turbidities and the efficiency of chlorination in drinking water, experiments were conducted to measure bacterial survival, chlorine demand, and interference with microbiological determinations. Results indicated that disinfection efficiency (log-fold decrease in coliform numbers) was negatively correlated with turbidity and was influenced by season, chlorine demand of the samples, and the initial coliform level. Interference with coliform detection in turbid water could be demonstrated by the recovery of typical coliforms from apparently negative filters. A procedure was developed to detect false negative reactions (interference) in the standard most probable number (S-MPN) technique for coliform enumeration of potable water supplies.
"EPA-600/2-82-054" "PB82-227752" "April 1982." Bibliography: p. 41-45. Microform.