Background document for modification of pH effluent limitations guidelines and standards for point sources required by NPDES permit to monitor continuously effluent pH.

Bibliographic Details
Corporate Authors:	United States. Environmental Protection Agency. Office of Analysis and Evaluation, JRB Associates
Format:	Government Document Book
Language:	English
Published:	Washington, D.C. : U.S. Environmental Protection Agency, Office of Analysis and Evaluation, 1980.
Subjects:	Hydrogen-ion concentration > Environmental aspects. Factory and trade waste > Environmental aspects > United States.

Evans: US Documents (Annex 5th floor)