Santa Susana

Surface Water

Interim Source Removal Action (ISRA)

The Regional Water Quality Control Board, Los Angeles Region (Regional Board) issued a 13304 Order on December 3, 2008 to perform interim/source removal actions to remove wastes that are causing or contributing to violations of limitations contained in the NPDES Permit, Order No. R4-2004-0111, in the Outfalls 008 and 009 Drainage areas. Site-wide cleanup of soil, soil vapor, and groundwater is not part of the scope of this Order and these activities will continue under regulatory oversight by the DTSC.

Boeing ISRA Quarterly Progress Reports

Regional Water Quality Control Board Monthly ISRA Status Reports