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Donald C. Tillman In-Plant Storage Basins (Archived)

This project involves the construction of two open, lined basins within the Donald C. Tillman Water Reclamation Plant (located in Sepulveda Basin) for temporary storage of excess peak wet weather flows. Currently one of the two wastewater treatment units at the plant must be shut down and used for storage during substantial rain events in order to prevent overflows in the sewers downstream from the plant. The proposed basins would provide 15.2 million gallons of storage capacity while both wastewater treatment units remain operative during wet weather periods. The project will not change the operating capacity of the plant but will allow the plant to operate at its designed capacity (80 mgd) during both wet weather and dry weather periods and will also help to prevent overflows in the downstream collection system during peak wet weather events.

The U.S. Army Corps of Engineers adopted a Finding of No Significant Impact.

(Click on underlined text to view report)
Review Status Public Review Period
Environmental Assessment Closed August 10, 2011 -  August 24, 2011