Minor Alteration No. WA2026102 – Ryer Island Pipe Replacement Project

The Ryer Island Pipe Replacement Project, identified as Minor Alteration No. WA2026102, is a forecast project managed by the Central Valley Flood Protection Board in California. The scope of work involves the removal of an existing 12-inch steel irrigation pipe and 1.5-inch electrical conduit, to be replaced with a new 10-inch steel irrigation pipe featuring a positive closure device and siphon breaker, along with a new 1.25-inch electrical conduit. Additional requirements include backfilling and recompacting the levee, installing a new concrete landing and walkway to the waterside pump, and removing an abandoned 36-inch concrete standpipe and two power poles on the landside. All project activities and materials must adhere to the California Code of Regulations, Title 23, Waters, Division 1 standards, and the site must be restored to pre-project conditions. The project is classified under NAICS code 237110 and has been issued a Notice of Exemption from the California Environmental Quality Act under categorical exemptions 15301, 15302, and 15304, as the work consists of the repair and replacement of existing infrastructure on the left bank of Miner Slough.