[Washington, D.C.] : United States Environmental Protection Agency, Office of Water, [2002]
Physical Details
1 page : digital, PDF file
data file
OCLC
ocm64231598
Title from title screen (viewed on Feb. 23, 2006).
"March 2002."
"EPA 821-F-02-003."
Mode of access: Internet from the EPA web site. Address as of 2/23/2006: http://www.epa.gov/waterscience/316b/ph2propfs.pdf; current access available via PURL.