Record Display for the EPA National Library Catalog


Main Title Hindrance of coliform recovery by turbidity and non-coliforms /
Author Herson, Diane S., ; Victoreen., Hugo T.
Other Authors
Author Title of a Work
Victoreen, Hugo T.
CORP Author Delaware Univ., Newark. School of Life and Health Sciences.;Municipal Environmental Research Lab., Cincinnati, OH.
Publisher Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available through the National Technical Information Service.
Year Published 1980
Report Number EPA-600/2-80-097; EPA-R-805102
Stock Number PB81-113581
OCLC Number 13603644
Subjects Bacteria ; Drinking water--Contamination--United States ; Turbidity
Additional Subjects Bacteria ; Drinking water--United States--Contamination ; Turbidity ; Coliform bacteria ; Potable water ; Brandywine River ; Escherichia coli ; Flavobacterium ; Inhibition ; Microorganisms ; Interactions ; Oxides ; Evaluation ; Water quality ; Minerals ; Isolation ; Identifying ; Water pollution control ; Acinetobacter ; Arthrobacter
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  TD441.H47 1980 Region 1 Library/Boston,MA 04/29/2016
EJBD  EPA 600-2-80-097 Headquarters Library/Washington,DC 04/11/2014
ELBD ARCHIVE EPA 600-2-80-097 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-2-80-097 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB81-113581 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xi, 66 pages : illustrations ; 28 cm.
The objectives of this project were to evaluate the recoverability of coliforms from waters which have: (1) High populations of non-coliform organisms, and (2) high levels of turbidity due to natural mineral turbidity, hydrated oxides and organic debris. After initial isolation and identification of coliforms and non-coliforms from raw and distribution water interactions between these two groups of organisms were studied. The outcome of the interaction was found to be dependent upon numerous factors. These included: the specific non-coliform, the number of each type of organism, the nutrient environment in which the interaction occurred, the physiological status of the interacting organisms and the type of media used to recover the coliforms. Turbidity augmentation and reduction experiments were done to distinguish non-bacterial turbidity inhibition of coliforms from the inhibition caused by other bacteria. The more serious inhibition to coliform detection seemed to be caused by the large populations of non-coliforms which exceeded the resident coliforms in water mains by factors of 100 to 100,000. Turbidity per se was not an impediment to coliform growth, but it did make it more difficult to recognize coliforms on membrane filters. These results will be of interest to individuals concerned with water quality and interpretation of microbiological data.
Includes bibliographical references (pages 64-65). Prepared for U.S. Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory, Cincinnati, Ohio, submitted by the University of Delaware and Wilmington Water Department, Willmington, Delaware, under grant no. Contract Number: R805102.