Blue-Green Algae Map

BGA Tracker 20170718

BGA Tracker-

Copco and Iron Gate Reservoirs are currently posted

Fish Health

 Readiness Level

 Green fish

All Rivers- Green
Learn more about fish health and KFHAT

Real-Time Data

Link to Real-Time WQ Map


The table above contains provisional data provided by the USGS via the waterservices site. All data are provisional and may be recalculated before final approval. This table may take several seconds to load.

* = value 2+ hours old
**=4 or more hours

KBMP Vision

The Klamath Basin Monitoring Program facilitates the coordination and implementation of water quality monitoring in support of the stewardship, protection, and restoration of all beneficial uses within the Klamath River watershed, with the ultimate goal of restoring water quality. Learn More

Blue-Green Algae Tracker

In the Klamath Basin blue-green algae blooms typically occur between June and October when temperatures rise and water conditions are favorable for algal growth. Blue-green algae monitoring typically occurs May - November. If river conditions exceed public health standards for toxic algae the area is posted with a health advisory sign.

Updated Posting Status

CA DangerTier2 Red2 July 19, 2017- Iron Gate Reservoir- The sample results collected on July 10th, 2017 in Iron Gate Reservoir show the cyanobacterial toxin microcystin exceeds the State of California's Recommended "Danger Tier 2' Threshold for Recreational Waters for harmful algae blooms. All access points on Iron Gate Reservoir were posted with health advisory signs on July 19, 2017.

CA WarningTier1 Orange3 July 6, 2017- Copco Lake- The sample results collected on June 25, 2017 from Copco Cove show the cyanobacterial toxin microcystin exceeds the State of California's Recommended Threshold for Recreational Waters for harmful algae blooms. All access points on Copco Reservoir were posted with updates to the health advisory signs on July 6, 2017 from Caution to Warning Tier 1. 

Below Threshold June 20, 2017- Upper Klamath Lake at Eagle Point- A health advisory issued by the Oregon Health Authority on June 7th for water around Eagle Point County Park on Upper Klamath Lake was lifted on June 20th due to reduced levels of blue-green algae associated toxins. Sample results collected on June 15th, 2017 no longer exceeded the State of Oregon's Recommended Threshold for Recreational Waters for harmful algae blooms.


About the Tracker

The BGA Tracker Map was built to inform the public and research community regarding river conditions. The Tracker utilizes current information to track  and map the blue-green algae blooms throughout the Klamath Basin. The Blue-Green Algae Tracker identifies blue-green algae public health threats  (i.e. exceeds health thresholds identified in the appropriate guidance) by river reaches bounded by public health monitoring locations.

River reaches which exceed applicable criteria for public health are indicated by different colors on the map that vary depending on the number of tiers within each jurisdiction's advisory thresholds. Advisory colors within the map are:                 



Yurok Tribe     


BGA Tracker Interactive Map         

 BGA Tracker 20170719


Blue-green Algae Official Notifications

Other Information


RocketTheme Joomla Templates