Chowchilla Subbasin Groundwater Recharge Project 1 (Streambed Alteration Agreement No. EPIMS-MAD-40478-R4)

The Chowchilla Subbasin Groundwater Recharge Project 1, managed by the Central Valley Flood Protection Board and Madera County, involves the construction of flow diversion structures for groundwater recharge in Madera County, California. Specifically, the project includes the Clayton and Haynes structures located along and under the Eastside Bypass levees. The scope of work entails the installation of rubber gasket reinforced concrete pipe conveyance pipelines, 14-foot diameter fish screens, concrete cutoff walls, and reinforced concrete control and pump boxes. The Haynes parcel site is located approximately 14 miles southwest of Chowchilla near the junction of Lincoln Road and Avenue 20. The project is classified as a forecast under NAICS code 237990 and is associated with Permit Numbers 19788, 19789, and 19790. It has been granted exemptions from the California Environmental Quality Act (CEQA) under statutory provisions and Executive Order N-7-22, as the work is designated to mitigate drought emergency conditions. Key administrative contacts include Project Manager Stephanie Anagnoson of Madera County and Senior Environmental Scientist Jennifer Calles of the Central Valley Flood Protection Board.