Protecting Public Health and the Environment.

DEQ seeks comment on proposed plans to lower stream temperatures in Hatwai Creek subbasin

Monday, May 13, 2019

LEWISTON — The Idaho Department of Environmental Quality (DEQ) is seeking public comment on proposed plans to address elevated temperatures in Hatwai Creek within the Hatwai Creek subbasin. The subbasin is a 32-square mile watershed located in Nez Perce County.

Temperature is a key factor in the health of fish and other coldwater organisms. Recent analyses of water quality data demonstrated that temperatures are above recommended levels in Hatwai Creek due to a lack of shade.

The Hatwai Creek Subbasin Assessment and Total Maximum Daily Loads: 2018 Temperature TMDL proposes to update total maximum daily loads designed to lower temperatures in Hatwai Creek.

The recommended actions seek to bring Hatwai Creek into compliance with state water quality standards and restore them to conditions supporting their beneficial uses, which include cold water aquatic life, salmonid spawning, and secondary contact recreation.

The document is available for review at DEQ’s Lewiston Regional Office and on DEQ’s website (download at right).

Submit written comments by June 12, 2019, at 5 p.m. PDT, on DEQ’s website or by mail or email to:

Jason Williams
DEQ Lewiston Regional Office
1118 F St.
Lewiston, ID 83501

Public Comment Form

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Media Contact

Water Quality Analyst
Jason Williams
DEQ Lewiston Regional Office
1118 "F" St.
Lewiston, ID 83501
(208) 799-4370

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Frequently Asked Questions about Subbasin Assessments and TMDLs