MDNR/DHSS, (Missouri Department of Health & Senior Services):

http://www.dnr.mo.gov/pubs/pub2291.pdf

DEA (US Drug Enforcement Administration):

www.justice.gov/dea/index.htm

NCADA (National Council on Alcoholism & Drug Abuse):

http://www.ncada-stl.org/rxotc_howto.html

MRWA (Missouri Rural Water Association):

http://www.moruralwater.org

NRWA (National Rural Water Association):

http://www.nrwa.org

http://www.nrwa.org/2001/publications/magazine.htm

AWWA (American Water Works Association):

http://www.awwa.org

Missouri Water Environment Assocation:

http://www.mwea.org

Missouri Department of Natural Resources

http://www.dnr.mo.gov/

U.S. Environmental Protection Agency

http://www.epa.gov/

EPA federal register publication for guidance for implementation of the Disinfectants and Disinfection By-products Rule (D/DBP)

http://www.epa.gov/OGWDW/mdbp/dbpfr.html

U.S. EPA Drinking Water Site Radon in Drinking Water (EPA site)

http://www.epa.gov/safewater/radon.html

U.S.D.A. Rural Utility Service USGS Water Science for Schools

http://wwwga.usgs.gov/edu/