Liquid Aluminum Sulfate for North End Treatment Plant

The City of Tacoma is seeking a qualified vendor to supply bulk liquid aluminum sulfate (Alum) for use at the North End Wastewater Treatment Plant. The contract is a two‑year base term with the possibility of up to three one‑year extensions, totaling a potential five‑year relationship. Approximately 4,400 gal will be delivered weekly (≈ 460,000 gal over the base term). All deliveries must be FOB destination, freight‑prepaid, and conform to strict chemical specifications (pH ≥ 2.0, Al₂O₃ 8.0‑8.2 %). The City requires full insurance coverage, a certificate of analysis, and a record of prior similar contracts. Pricing must remain firm for 60 days after bid opening and locked for the contract term, with limited price adjustments only at renewal. • Product: Liquid Aluminum Sulfate (8.3 % Al₂O₃) meeting specified pH and purity. • Volume & Frequency: ~4,400 gal per shipment, about one shipment per week, ≈ 460,000 gal over two years. • Delivery Requirements: Within 5 business days of order, 8 am‑12 pm, Monday‑Friday; non‑conforming shipments returned at vendor cost. • Contract Value: Estimated $1.3 million; price locked for 24 months with optional extensions. • Mandatory Submissions: Signed bid form, price proposal, prior‑contract references, Certificate of Analysis, SDS, and insurance certificates.