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High Nitrate Levels in Hoback Drinking Water

About Hoback

Hoback, Wyoming is an unincorporated area in southern Teton County ten miles south of the Town of Jackson. Depending on one’s spatial definition the community has between 300 and 600 residents. Given local pressures on the limited amount of private land in Teton County (which is more than 97% public land), Hoback is expected to grow.

Source: Groundwater pollution from septic systems

The Snake River aquifer, which provides drinking water for nearly all other Teton County residents, does not reach down to Hoback Junction; private wells must tap into limited groundwater seeping through fractured bedrock. Septic system effluent also percolates down into these openings, where it is able to come in contact with the groundwater.

As a result, drinking water in Hoback Junction has long suffered from groundwater pollution. Local wells regularly exceed the Environmental Protection Agency’s maximum allowable nitrate concentration for human consumption. Even with specific, privately-funded treatment, nitrate levels remain high. As a result, many Hoback Junction residents avoid drinking their well water and purchase water for personal consumption.

Investigation of Elevated Nitrates in the Hoback Junction Area Teton County, Wyoming

On February 10, 2020, Protect Our Water Jackson Hole (POWJH) and the Wyoming Outdoor Council (WOC) submitted a complaint to the Wyoming Department of Environmental Quality (WDEQ) Water Quality Division (WQD) alleging that there were unpermitted Underground Injection Control (UIC) commercial septic systems at two facilities located in Hoback Junction, Teton County, Wyoming. Following the inspections of these two facilities, WOC submitted a second complaint on June 16, 2020, alleging that elevated nitrates in groundwater in the Hoback Junction Area were caused by commercial and residential septic systems and requested that the WDEQ investigate potential sources of nitrate exceedances.

CONCLUSION: On December 11, 2024, based on the results of the data review, it appears that the major known source of nitrates in groundwater is related to the density of domestic septic systems in the area.

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POWJH is Taking Action

Community Solutions

Hoback Clean Water Initiative

Date: 2022 - 2025
Status: Completed

POWJH launched the Hoback Clean Water Initiative in 2022 to provide Hoback residents with free, clean drinking water as a short-term solution to their water quality problems until a long-term solution unfolds through the Hoback Junction Water & Sewer District. This initiative also helped fund critical studies to get a community drinking water system in place in Hoback Junction.

Advocacy

Hoback Junction Water & Sewer District

Date: Ongoing
Status: Current

In Teton County, the Hoback area exhibits the poorest water quality with nitrate concentrations reaching and exceeding levels hazardous to human health. POWJH board member Robert Frodeman is chair of...

Community Solutions, Education & Outreach, Events

Drinking Water Well Testing

Date: Ongoing
Status: Current

POWJH received two consecutive U.S. Environmental Protection Agency (EPA) Environmental Education grants to provide free drinking water well testing resources to our community. Any Teton County, WY private well user can participate.

The time to act is now.
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