NPDES self-monitoring system : user guide.

Bibliographic Details
Corporate Author:	United States. Environmental Protection Agency. Office of Water Enforcement and Permits
Format:	Government Document Book
Language:	English
Published:	Washington, D.C. : Office of Water, Office of Water Enforcement and Permits, U.S. Environmental Protection Agency, 1985.
Subjects:	Water > Pollution > United States. Water quality > Measurement > United States.

Evans: US Documents (Annex 5th floor)