DEQ seeks comment on water quality improvement plan for Palisades subbasin
Friday, August 31, 2018
IDAHO FALLS — The Idaho Department of Environmental Quality (DEQ) is seeking public comment on proposed plans to improve water quality in various water bodies in the Palisades subbasin in eastern Idaho.
Certain water bodies in the Palisades subbasin have been identified as impaired by sediment, E. coli bacteria, and elevated temperatures.
Excess sediment in surface waters can alter flow patterns and negatively impact aquatic habitat and cold water aquatic life. Excess bacteria can degrade recreational use of surface waters and, if ingested, cause gastrointestinal illnesses. Temperature is a key factor in the health of fish and other coldwater organisms. Recent analyses of water quality data demonstrated that E. coli levels exceed water quality standards in Rainey Creek and sediment and temperatures are above recommended levels in a number of streams in the subbasin.
The Palisades Subbasin: 2018 Total Maximum Daily Load and Five-Year Review proposes to establish total maximum daily loads (TMDLs) to reduce sediment and E. coli bacteria and lower water temperature in the subbasin.
The recommended actions seek to bring the water bodies into compliance with state water quality standards and restore them to conditions supporting their beneficial uses, which include cold water aquatic life, primary and secondary contact recreation, domestic water supply, and salmonid spawning.
The document is available for review at DEQ’s Idaho Falls Regional Office and on DEQ’s website (download at right).
Submit written comments by October 1, 2018, at 5 p.m. MDT, on DEQ’s website or by mail or email to:
DEQ Idaho Falls Regional Office
900 N. Skyline Drive, Suite B
Idaho Falls, ID 83402