American Water Works Association
www.awwa.org

Water Environment Federation
www.wef.org

National Rural Water Association
www.nrwa.org

Water Research Foundation
www.waterresearchfoundation.org

National Regulatory Research Institute
www.nrri.org

Arkansas Department of Health
www.healthyarkansas.com/

Arkansas Rural Water Association
www.arkansasruralwater.org/

Arkansas Water and Wastewater Managers Assn.
www.arkwwma.org/

Arkansas Water Works & Water Environment Assn.
www.awwwea.org/

Arkansas Dept. of Environmental Quality
www.adeq.state.ar.us/