Protecting Public Health and the Environment.

Twin Falls Region

DEQ's Twin Falls Region in southcentral Idaho includes the Wood River and Magic Valleys. The region's major cities include Ketchum, Hailey, Gooding, Jerome, Twin Falls, Burley, and Rupert. This region encompasses 14.3% of the state's geographical area and is home to about 12.6% of the state's population.

The Twin Falls Region is well known for the Sun Valley ski resort, the Middle Snake River, Shoshone Falls, and the Thousand Springs area. The Snake River Plain is hydrogeologically unique, with a ground water supply that feeds numerous springs and streams. This is one of the most productive agricultural areas in the country, producing sugar beets, corn, potatoes, and drybeans. The Magic Valley has a large number of dairy farms and related cheese and whey processing facilities and over 80 fish hatcheries that produce approximately 70% of the commercially produced hatchery trout in the US With the use of such exceptional water resources come exceptional water quality challenges.

Basin-Watershed Advisory Groups

Basin and Watershed Advisory Groups, BAGs and WAGs, are panels of citizens that advise DEQ on water quality objectives and provide input and guidance on development of water quality improvement plans for specific watershed within DEQ's Twin Falls Region. Learn more.

Engineering Projects

DEQ's Twin Falls Region maintains an electronic document submittal system. Access the submittal system here.

Water Quality Plans & Reports

Subbasin assessments and surface water quality improvement plans have been developed for a number of water bodies in DEQ's Twin Falls Region. In addition, numerous studies have been conducted of ground water resources in the area. Access the plans and reports here.

DEQ Twin Falls Regional Office

650 Addison Avenue West, Suite 110
Twin Falls, ID 83301
(208) 736-2190
toll-free: (800) 270-1663

Staff Contacts

Regional Administrator
Sue Switzer
(208) 736-2190

Air Quality/Remediation Manager
Bobby Dye
(208) 736-2190

Drinking Water/Wastewater Manager

Surface Water Quality Manager
Sean Woodhead
(208) 736-2190

Flood Resources

After the Flood: Protecting Your Drinking Water

Emergency Preparedness: Protecting Water Quality Before, During, and After a Flood Strikes

South Central Public Health District