Oregon Association of Water Utilities — www.oregonvos.net/~oawu/

National Rural Water Association — www.nrwa.org/

American Water Works Association — www.awwa.org

Jefferson County Chamber of Commerce— www.madras.net ; then go to community

Oregon office of Energy — www.energy.state.or.us/

Oregon Department of Human Services, Drinking Water Program —

www.oregon.gov/DHS/ph/dwp/index.shtml

Drinking Water Data Access Page — http://170.104.158.16/

Environmental Protection Agency — www.epa.gov/safewater/

Opal Springs Bottled Water/Earth20 — www.earth2o.com