Welcome to the California Regional Water Quality Control Board - Lahontan Welcome to the California Environmental Protection Agency

Total Maximum Daily Load (TMDL) Program

Total Maximum Daily Loads (TMDL) are water quality restoration plans required by the Federal Clean Water Act (CWA) to ensure the attainment of water quality standards in impaired surface water bodies. Impaired surface waters are identified on the CWA 303(d) list. Click here to view the 2006 Section 303(d) List of Water Quality Limited Segments. If you have questions about the Lahontan Region's 303(d) List, contact Judith Unsicker.

Below are the TMDL development projects that the Lahontan Regional Board is currently working on or has completed. Highlighted projects have links to documents or other information available for viewing or downloading.

For information regarding the listed projects, please contact Doug Smith

Total Maximum Daily Load Projects

Blackwood Creek Sediments
Adopted by Lahontan Region October 2007 and approved July 11, 2008 by USEPA

Available Documents

Bodie Creek Metals

Draft Problem Statement

Bodie Creek Sampling and Analysis

Bodie Creek Impairment Verification Sampling Report

Bridgeport Reservoir Nutrient

Draft Problem Statement

Report on Bridgeport Reservoir Beneficial Use Impairment:  Limnology in the Summer-Fall 2000 and Comparisons with 1989, 2002

Bronco Creek Sediment
Adopted by Lahontan Region May 2008

 

Crowley Reservoir Nutrient

Staff Report:  Recommendation to De-List Crowley Lake for Nitrogen and Phosphorous

Restoration of Riparian Habitat and Assessment of Riparian Corridor Fencing and Other Watershed Best Management Practices on Nutrient Loading and Eutrophication of Crowley Lake

Assessment of Internal Nutrient Loading to Crowley Lake

Donner Lake PCBs

 

Gray Creek Sediment
Adopted by Lahontan Region May 2008

 

Haiwee Reservoir Copper

Draft Progress Report: Total Maximum Daily Load for Copper, 2001

Heavenly Valley Creek Sediment
Adopted by Lahontan Region January 2001 and approved September 30, 2002 by USEPA

Final Heavenly Valley Creek TMDL Basin Plan Amendment

Hot Springs Canyon Creek (Bodie Hills)

De-List Recommendation

Indian Creek Reservoir Phosphorous
Adopted by Lahontan Region July 2002 and approved in 2003 by USEPA

Approved Basin Plan Amendments

Technical Staff Report (includes Table 11 )
Supplement to Technical Staff Report (includes Table 1 )

Lake Tahoe

Available Documents

Squaw Creek Sediment
Adopted by Lahontan Region April 2006 and approved July 27, 2007 by USEPA

Available Documents

Susan River Toxicity

Susan River Toxicity Project Plan

Susan River Toxicity Study Quality Assurance Project Plan

Susan River Toxicity Study Report

Truckee River Sediment
Adopted by Lahontan Region May 2008

Available Documents

Ward Creek Sediment

Draft Problem Statement