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. Please direct questions to Amanda Montgomery at (916) 464-4716 or by email at amontgomery@waterboards.ca.gov

• Final TMDL Report, 398 KB, PDF (PDF Info)