American Water Works Research Foundation (AWWARF)

www.awwarf.com/newprojects/perctbl.html
www/awwarf/com/newprojects.perchlor.htm

Zero Waste America - A great perchlorate page with many links

www.zerowasteamerica.org/perchlorate.htm

US Environmental Protection Agency (US EPA)

www.epa.gov/ogwdw000/ccl/perchlor/perchloro.htm
www.epa.gov/ogwdw000/ipsc.htm
Toxicological Review

Agricultural Research Service Feeding Sodium Chlorate to Livestock To Kill Salmonella and E. coli

http://www.ars.usda.gov/is/AR/archive/mar01/sodium0301.htm

Environmental Science & Technology Perchlorate Drinking Water Recommendation Drops

http://pubs.acs.org/subscribe/journals/esthag-w/2002/jan/policy/rr_perchlorate.html