U.S. Department of Agriculture

Current Research Information System web site: http://cris.csrees.usda.gov/

U.S. Environmental Protection Agency

Office of Wastewater Management: http://www.epa.gov/npdes/afo/

National Agriculture Compliance Assistance Center: http://www.epa.gov/agriculture/

1999, Unregulated contaminant monitoring regulation: http://www.epa.gov/safewater/standard/ucmr/main.html

1999, EPA Region 6: http://www.epa.gov/earth1r6/6en/w/cafo/home.htm