Chemicals - Phosphate / DPWP

This sealed‑bid solicitation from the City of Worcester seeks a blended liquid orthophosphate product for potable‑water treatment at the Worcester Water Filtration Plant. The city will award a primary and secondary contract to the lowest‑priced responsive suppliers, with a 90‑day base term and an optional identical renewal. Vendors must meet strict chemical composition, EPA and NSF‑60 certifications, and deliver within 14 days of a purchase order. The awardees were Carus Chemical (primary) and Shannon Chemical (secondary). • Product: blended liquid orthophosphate (34‑40 % phosphate, 50 % orthophosphate, pH 4‑7.5, specific gravity ≥ 1.3) • Quantity: estimated 50,000 lb over the contract period • Delivery: to Worcester Water Filtration Plant, 14‑day delivery window, 24‑hour prior notice required • Evaluation: lowest unit price per pound; no price adjustments allowed; $500 conversion fee for new suppliers • Contract term: 90 days with optional second 90‑day renewal