Protecting Public Health and the Environment.

Recreation Water Quality Health Advisories

The purpose of this page is to provide information related to current cyanobacteria — blue-green algae — and E. coli bacteria advisories in Idaho. DEQ will share information and provide a link to health advisories issued by public health districts or other agencies. The map and information table will be updated with the most current information as health advisories are issued and lifted throughout the season.

Remember: Only a fraction of all water bodies in Idaho are monitored due to limited physical and monetary resources. A water body with no advisory is not an indication that a bloom or bacterial outbreak is not present. You are your own best advocate when ensuring your safety, and that of your family and pets. Be aware and "when in doubt, stay out."

 

Click pin for detailed information. Active HAB Advisory: Active E. coli Advisory: Lifted Advisory:

There are no current Harmful Algal Bloom advisories at this time.

Lifted Harmful Algal Bloom Advisories


County Waterbody Date Issued Date Lifted
Ada Esther Simplot Park 9/25/2018 10/8/2018
Owyhee C.J. Strike Reservoir 9/19/2018 10/17/2018
Valley Lake Cascade 9/7/2018 10/16/2018
Canyon Lake Lowell 9/7/2018 10/12/2018
Twin Falls Salmon Falls Creek Reservoir 7/27/2018 10/10/2018
Camas Mormon Reservoir 7/27/2018 12/13/2018
Washington Brownlee Reservoir 7/25/2018 11/16/2018
Kootenai Fernan Lake 7/18/2018 12/4/2018
Elmore Little Camas Reservoir 6/22/2018 9/18/2018
Ada Eagle Island State Park Pond 7/25/2018 8/3/2018
There are no current E. coli advisories at this time.

Lifted E. coli Advisories


County Waterbody Date Issued Date Lifted
Canyon Lake Lowell 8/8/2018 9/25/2018

Page Subscription

Report a Bloom

While you're out recreating, notify us of a possible harmful algal bloom. Download the bloomWatch app to learn what to look for and report what you found. Learn more.

Additional Information

Related Pages

Blue-Green Algae and Harmful Algal Blooms

Blue-Green Algae and Harmful Algal Blooms: Information for Public Water Systems