"Office of Water"--Cover.
Distributed to depository libraries in microfiche.
Shipping list no.: 95-0701-M.
"February 28, 1995."
"EPA 821-R-95-019"--Cover.
Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1995] 8 microfiches : negative.