Total Maximum Daily Load (TMDL) Program

New! Public comment period open on the Updated Clean Water Act Sections 305(b) and 303(d) Integrated Report of the Lahontan Region. Comments due June 15, 2009. (posted 05/04/09)

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. See 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. 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

TMDLs	Documents and Implementation
Blackwood Creek Sediments Adopted by Lahontan Region October 2007 and approved July 11, 2008 by USEPA	Available Documents Progress for Implementation
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 State Water Board Resolution Approving the Truckee River TMDL	Available Documents Implementation Status - Placer County as regulated Small Municipal Separate Storm Sewer System (MS4)
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 State Water Board Resolution Approving the Truckee River TMDL	Available Documents Implementation Status - Placer County as regulated Small Municipal Separate Storm Sewer System (MS4)
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 Implementation status - Heavenly Mountain Resort Environmental Monitoring Program – December 2005
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 State Water Board Resolution Approving the Squaw Creek TMDL	Available Documents Implementation status US EPA Letter approving the Squaw Creek TMDL Placer County as regulated Small Municipal Separate Storm Sewer System (MS4)
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 State Water Board Resolution Approving the Truckee River TMDL	Available Documents Implementation Status Town of Truckee as regulated Small Municipal Separate Storm Sewer System (MS4) Placer County as regulated Small Municipal Separate Storm Sewer System (MS4)
Ward Creek Sediment	Draft Problem Statement