# The Metropolitan Water District of Southern California PlanetBids #RFB-AS-482050

Two 6,250-Gallon HDPE Chemical Storage Tanks and Accessories

**Posted:** November 10, 2026
**Respond By:** January 27, 2027
**Identifier:** RFB-AS-482050
**NAICS:** 326199

The Metropolitan Water District of Southern California is seeking two chemical-storage tanks and associated equipment for its F.E. Weymouth Water Treatment Plant.
- **Buyer:** Metropolitan Water District of Southern California, Purchasing Department; F.E. Weymouth Water Treatment Plant, La Verne, California.
- **Tank OEMs:** **Poly Processing Company** or **Snyder**, or an approved equal. **Hayward** is named as the reference manufacturer for the outlet butterfly valves.
- **Core purchase:** Two 6,250-gallon, NSF 61-certified, rotationally molded cross-linked HDPE tanks (overflow at 6,000 gallons; tags 29-TK-10A and 29-TK-24A). Designed for 23% fluorosilicic acid and required to be suitable for concentrations up to 30% and specific gravity 1.9; compliant with specification ME-5702.
- **Included equipment:** Two polyethylene sloped housekeeping pads; two lug-style butterfly valves with gear operators, equal to Hayward Series BYV; two flex connectors; backing rings and hardware for each tank outlet flange; and spare gaskets for tank nozzles and manways.
- **Tank features:** Sloped, full-drain bottom outlet; FRP skirt, external ladders and safety decks; fittings and appurtenances. Shop inspection and hydrostatic testing are required.
- **Services and delivery:** Contractor field services include inspection and testing support for at least three 8-hour days over up to three trips, plus one 8-hour training day. Installation is by others. Delivery is estimated 16 weeks after award, with freight prepaid and included in the bid price.
- **Notable requirements:** Drawings and technical data, NSF 61 certification, witnessed shop inspection and hydrostatic testing, a five-year warranty, and guaranteed satisfactory performance for at least 18 months after delivery.

### Description

The Metropolitan Water District of Southern California is seeking bids for two 6,250-gallon HDPE tanks for its Weymouth Water Treatment Plant. The tanks are intended for hydrofluorsilic acid at concentrations up to 30% and a specific gravity of 1.9, in accordance with specification ME-5702. The bid price must include contractor field services; estimated delivery is 16 weeks after contract award. Installation is not part of the contract, and the required bid submissions include drawings and data, NSF 61 certification, a conflict of interest form, and a W-9.

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