Russian River Watershed Total Maximum Daily Loads (TMDLS)

Total Maximum Daily Loads (TMDLs) | Watershed Overview | Impairments | Pathogen - Fecal Indicator Bacteria | Sediment | Temperature | Mercury | Russian River Pathogen TMDL | Laguna de Santa Rosa TMDLs

To receive notices and information on the Russian River via e-mail, please go to Listserve and click on “Russian River TMDL.”


The Regional Water Board adopted the Action Plan for the Russian River Pathogen Total Maximum Daily Load (TMDL) in August 2019. The adopted TMDL Action Plan will next be heard before the State Water Resources Control Board with appropriate notices given, undergo review by the Office of Administrative Law, then go to the US Environmental Protection Agency for final approval.

In preparation for the State Water Board Hearing, Regional Water Board staff prepared the following documents for public review and comment. Included below is a new technical summary memorandum to describing the reclassification of certain HUC-12s and reassessment of Fecal Indicator Bacteria and Microbial Source Tracking data used to determine exceedances of statewide water quality standards for water contact recreation beneficial use during the development of the Russian River Watershed Pathogen Total Maximum Daily Load. The reassessment results in updates to the Staff Report adopted in 2019 and therefore will serve as an addendum to that report. 

  (Page last updated 10/14/20->)