TMDL Projects
- Albion River
- Big River
- Eel River, North Fork
- Eel River, Upper Main
- Eel River, Middle Fork
- Eel River, South Fork
- Elk River
- Freshwater Creek
- Garcia River
- Gualala River
- Klamath River
- Laguna De Santa Rosa
- Lost River, Upper
- Lost River, Lower
- Mattole River
- Navarro River
- Noyo River
- Redwood Creek
- Salmon River
- Scott River
- Shasta River
- Stemple Creek
- Ten Mile River
- Trinity River
- Trinity River, South Fork
- Van Duzen River
Blue Green Algae in the Klamath Basin
On May 29, 2008, the US EPA listed the mainstem Klamath River as impaired for microcystin toxins in the reach including the Copco I, Copco II, and Iron Gate reservoirs and the river waters in between.
This is an addition to California’s 2006 Section 303(d) List of Impaired Waterbodies. The 2006 303(d) List already identified each segment of the Klamath River within California as impaired due to nutrients, organic enrichment/low dissolved oxygen, and temperature. The listings do not extend to any water bodies located within Indian country, as defined in 18 USC §1151.
- Letter re: Klamath River Microcystin Toxin Impairment – May 29, 2008
- EPA’s Responsiveness Summary Re: Klamath Microcystin Listing – May 29, 2008
- EPA’s Staff Report Re: Klamath Microcystin Listing – March 13, 2008
- More information on the 303(d) List from the Regional Water Board
- More information on the 303(d) List from the US EPA (note: hosted on US EPA’s website)
Contact Information
Lead Staff:
Rebecca Fitzgerald, Environmental Scientist
707-576-2650
rfitzgerald@waterboards.ca.gov
Page Updated: June 10, 2008