Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title USEPA method study, method 510.1, the determination of the maximum total trihalomethane potential /
Author Clements, Harold. ; Winter, J. ; Britton, P.
Other Authors
Author Title of a Work
Britton, Paul W.
Winter, John.
CORP Author Environmental Monitoring and Support Lab.-Cincinnati, OH. Quality Assurance Branch.
Publisher U.S. Environmental Protection Agency, Environmental Monitoring and Support Laboratory,
Year Published 1987
Report Number EPA/600/4-86/040
Stock Number PB87-170825
Subjects Trihalomethanes. ; Organic water pollutants--United States. ; Water--Analysis.
Additional Subjects Halogen organic compounds ; Methane ; Ground water ; Water pollution ; Chemical analysis ; Concentration(Composition) ; Waste water ; Sediments ; Aquatic animals ; Microorganisms ; Chemical reactions ; Chloroform ; Benzoic acids ; Statistical analysis ; Drinking water
Library Call Number Additional Info Location Last
NTIS  PB87-170825 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 56 pages ; 28 cm
A method validation study of the Method, 510.1: 'The Determination of Maximum Total Trihalomethane Potential'. The MTP determination maximizes the formation of TTHM concentration could become under conditions favoring TTHM formation. It may be used by systems employing ground water sources to demonstrate the appropriateness of a reduced monitoring requirement. The method involves the reaction of 3,5-dihydroxybenzoic acid with a chlorine residual for a 7-day period. When a chlorine residual is maintained continually, the dihydroxy-benzoic acid is converted to chloroform. If other halogens present in the make-up water, other trihalomethanes are formed in the determination of trihalomethanes by either the purge and trap or liquid-liquid extraction procedure. The study design was based on Youden's non-replicate plan for collaborative testing by laboratories familiar with the method.
Caption title. "Mar. 1987." "EPA/600/4-86/040." Microfiche.