10.2190/DPDD-5PCE-A00J-NAH2 DPDD5PCEA00JNAH2 1 Drinking Water Supply Management: An Interactive Approach 1 18 20020509 20020509 20020509 20020509 DPDD5PCEA00JNAH2.pdf http://baywood.metapress.com/link.asp?target=contribution&id=DPDD5PCEA00JNAH2 1 James A. Goodrich Robert M. Clark Drinking Water Research Division, Water Engineering Research Laboratory, Cincinnati, Ohio In February 1977, a massive discharge of carbon tetrachloride into the Kanawha River in West Virginia threatened much of the Ohio Valley with contaminated drinking water potentially affecting over one million consumers. This episode heightened the awareness of consumers and decision-makers alike to the relationship between wastewater discharges and drinking water consumption. This article examined the results of a study motivated by the carbon tetrachloride spill and examined interactions between industrial discharges and drinking water consumption in surface water supplies. The mechanism used to study the wastewater discharge water supply intake interaction was a water quality/quantity simulation model QUAL-II. QUAL-II was used to provide a framework to bring the diverse elements of mathematic modeling, fluid dynamics, organic chemistry and geography to create an interactive systems analysis approach that can have an impact on public policy in drinking water. L. A. Roesner, P. Giguere, and D. E. Evenson, <i>Computer Program Documentation for the Stream Quality Model QUAL-II</i>, Center for Water Quality Modeling, Environmental Research Laboratory, Office of Research and Development, U. S. Environmental Protection Agency, EPA 600/9-81-014, Athens, GA, February 1981. United States Office of Management and Budget, Statistical Policy Division, <i>Standard Industrial Classification Manual</i>, U. S. Government Printing Office, Washington, DC, 1972. W. B. Mills, et al., Water Quality Assessment: A Screening Procedure for Toxic and Conventional Pollutants, Tetra Tech, USEPA, EPA-600/6-82-004, Athens, GA, September 1982. Environmental Criteria Assessment Office, communication with Dr. Christopher T. DeRosa, United States Environmental Protection Agency, 1982. Malcolm Pirnie, Inc., <i>Volatile Organic Chemicals in Ground Water Workshop Notebook</i>, Paramas, NJ, September 1, 1982. R. C. Kroner, Accidental Chemical Spills, A Review of Incidents in the Ohio River Valley, 1978 and 1979, <i>Public Works, 3</i>:10, pp. 48-50, October 1980. C. Sonich, Personal conversation, Office of Research and Development, Environmental Criteria Assessment Office, U. S. Environmental Protection Agency, Cincinnati, OH, November 1982.