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Grasslands Marshes Selenium TMDL
A TMDL for selenium in the Grasslands Marshes was completed by the Regional Board and approved by US EPA in May 2000.
The TMDL is implemented through a prohibition of discharge of agricultural subsurface drainage water to wetland water supply channels in the
Grassland Watershed. This prohibition was adopted in a Basin Plan Amendment for the Control of Subsurface Drainage Discharges (State Water
Board Resolution 96-078), with an effective date of 10 January 1997.
- Final TMDL Report, 398 KB, PDF (PDF Info)