Cincinnati, OH : U.S. Environmental Protection Agency, Office of Research and Development, Office of Science, Planning and Regulatory Evaluation, Center for Environmental Research Information ; Washington, DC : Office of Water, Office of Ground Water and Drinking Water, Ground Water Protection Division ; [Springfield, Va. :] : [National Technical Information Service, distributor], [1994]
Physical Details
xvii, 269 pages : illustrations, maps ; 28 cm
OCLC
ocm32769647
Distributed to depository libraries in microfiche.
"September 1994."
"EPA/625/R-94/001."
Includes bibliographical references.
Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1995] 4 microfiches : negative.