SCH Number 2004011056

Project Info

Title

TMDL for Sediment/Siltation and Implementation for Imperial Valley Drains

Description

Regional Board Resolution No. R7-2005-0006 adopted on January 19, 2005 by the Colorado River Basin Regional Water Quality Control Board (Regional Board), amended the Water Quality Control Plan (Basin Plan) for the Colorado River Basin Region to include: (1) a Total Maximum Daily Load (TMDL) for sedimentation/siltation for the Niland 2, P, and Pumice Imperial Valley drains, (2) an implementation plan for all Imperial Valley drains that empty directly into the Salton Sea, and (3) a prohibition for discharge of silt-laden tailwater into Imperial Valley surface waters. The TMDL requies a 51% net reduction of sediment/silt into the Niland 2, P, and Pumice drains. Implementation begins three months after U.S. Environmental Protection Agency (USEPA) approves the TMDL, and requires farm landowners, renters/lessees, and operators/growers to implement management practices to reduce delivery of silt/sediment into drains that empty directly into the Salton Sea, in accordance with a time schedule consisting of four phases.

2 documents in project