Mad River TMDLs

The Mad River is listed on the Clean Water Act Section 303(d) List due to impairments to water quality by sediment/turbidity and high water temperatures.

Sediment/Turbidity TMDL

The U.S. EPA developed and established the Mad River Total Maximum Daily Loads for Sediment and Turbidity on December 21, 2007.

Please refer to the U.S. EPA Region 9 TMDL Webpage for more information.

As part of our efforts to control sediment waste discharges and restore sediment impaired water bodies like the Mad River, the Regional Water Board adopted the Total Maximum Daily Load Implementation Policy Statement for Sediment Impaired Receiving Waters in the North Coast Region, which is also known as the Sediment TMDL Implementation Policy, on November 29, 2004.  The Sediment TMDL Implementation Policy states that Regional Water Board staff shall control sediment pollution by using existing permitting and enforcement tools.

Specific sediment control measures that Regional Water Board staff are taking or plan to take in the Mad River watershed are described in the Regional Water Board Staff Work Plan to Control Excess Sediment in Sediment-Impaired Watersheds.

• "The Mad River Watershed Assessment" was developed for the "Mad River Watershed Plan" from Prop 40 Integrated Watershed Planning grant funding.

• Final TMDL (PDF) (112 pp, 4M)
• Comment Responsiveness Summary (PDF) (52 pp, 511K)
• Sediment Source Analysis (PDF) (173 pp, 13.3M)
• Plate 1 - Subwatersheds (3 pp, 3M)
• Plate 2 - GMA Sampling Sites (3 pp, 1.9M)
• Plate 3 - Mean Annual Precipitation (3 pp, 2.6M)
• Plate 4 - Anadromous Distribution (1 pp, 1.8M)
• Plate 5 - Land Ownership (1 pp, 1.4M)
• Plate 6 - Geology (3 pp, 5.4M)
• Plate 7 - Transportation (3 pp, 3.0M)
• Plate 8 - Percent Slope (3 pp, 2.8M)
• Plate 9 - Landslides pre-1975 (3 pp, 2.9M)
• Plate 10 - Landslides post-1975 (3 pp, 3.8M)

Temperature TMDL

The development of the Mad River TMDL for temperature is not yet scheduled.