Biological criteria. National program guidance for surface waters.

Bibliographic Details
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : Criteria and Standards Division, Office of Water Regulations and Standards, U.S. Environmental Protection Agency, 1990.
Subjects:	Water > Pollution > United States. Biological systems. Water quality biological assessment > United States. Water quality bioassay > United States. Water quality > Standards > United States. Water > Pollution > Law and legislation > United States. United States. > Federal Water Pollution Control Act Amendments of 1972. Water > Pollution. Water quality biological assessment. United States.
Online Access:	https://purl.fdlp.gov/GPO/LPS45005

Description
Item Description:	"April 1990"--Cover. "EPA-440/5-90-004"--Cover. In scope of the U.S. Government Publishing Office Cataloging and Indexing Program (C&I) and Federal Depository Library Program (FDLP). GPO Cataloging Record Distribution Program (CRDP).
Physical Description:	1 online resource (ix, 57 pages) : illustrations
Format:	Mode of access: Internet from the EPA web site. Address as of 4/8/2004: http://www.epa.gov/bioindicators/html/biolcont.html; current access available via PURL.
Bibliography:	Includes bibliographical references (pages 43-44).