Pacifica Opengov #P0040

Calera Creek Water Recycling Plant Phase 1A Headworks Rehabilitation

The City of Pacifica is seeking a contractor for Phase 1A headworks rehabilitation and improvements at the Calera Creek Water Recycling Plant. - Government buyer: City of Pacifica, Public Works – Wastewater Division, Pacifica, California. - Scope: Modify the existing 36-inch wastewater influent/force-main system with a 24-inch tie-in, tapping sleeve assembly, valves, temporary support, excavation, and backfill. - Products and quantities: One 24-inch isolation (eccentric plug) valve; one 36-inch isolation (eccentric plug) valve; and one 36-inch-by-24-inch tapping sleeve assembly with blind flange. A temporary trailer-mounted drain pump is also required; no quantity is stated. - OEMs and vendors: No equipment OEMs, manufacturers, or product vendors are named. Valve and tapping-sleeve designs are not tied to specified brands or part numbers. - Temporary pumping requirements: Provide dewatering and discharge to the SBR #1 access hatch, including flexible above-grade piping as needed. Pump capacity must be at least 2,500 GPM at 15 feet of head and handle solids up to one inch. The plans describe dewatering scenarios of at least 30,000 cubic feet from the influent pipe and 500 cubic feet from the drop box. - Other work and notable requirements: Install a shoring box, steel plates, galvanized chain-link fencing, and a hydrophilic waterstop. Verify the existing 36-inch C900 PVC pipe’s outside diameter before fabricating the tapping sleeve; its design must provide sufficient length and thickness to support the existing pipe. Coordinate shutdowns with the City and limit them to three hours.

Description

The City of Pacifica is soliciting bids for Phase 1A of the Calera Creek Water Recycling Plant Headworks rehabilitation and improvement project. Work includes installing a 24-inch tie-in with a blind flange and thrust block on the existing 36-inch wastewater influent pipeline, and backfilling the excavation. The contractor must procure and deliver one 24-inch and one 36-inch eccentric plug valve, and install the specified shoring, steel plate, chain-link fencing, and hydrophilic waterstop. A mandatory pre-bid meeting is scheduled for October 22, 2026, and bids are due November 4, 2026.

View original listing