Washington County Ionwave #PUR-1840 Addendum 4

Washington County seeks 43 swimming-pool and water/wastewater treatment chemicals

Washington County, Maryland is seeking bids for a broad range of swimming-pool and water/wastewater treatment chemicals for County facilities, the City of Hagerstown, and the Town of Boonsboro. - Buyer: Board of County Commissioners of Washington County, Maryland, Office of Procurement, Division of Budget & Finance; participating users include Washington County Water Quality Department and Parks, the City of Hagerstown, and the Town of Boonsboro. - Scope: 43 chemical line items, ordered as needed. Estimated annual quantities include 100 one-ton cylinders of liquid chlorine, 190,000 lb of 19% ammonia, 80 dry tons of ferric chloride, 180,000 lb of Solution SLI-5250, 75,000 gallons each of Thioguard and methanol, and other treatment chemicals listed below. Bid-line quantity fields of 1 are pricing units, not the estimated annual usage. - Named manufacturers, brands, and product references: Shannon Chemical Corp. (required SLI-5250 blend), Methanex (methanol price index), Morton Salt Inc., Maryland Biochemical Company (MB012SF), PPG, Olin, and HTH. Named product references include DelPAC 2000, DelPAC 2020, DelPAC 2500, PAX-XL6, Micro C 2000, Thioguard, Zetag 8814, Hydra-Darco B, and Mtek T. - Notable requirements: SLI-5250 must be the specified 50/50 ortho-to-poly blend from Shannon Chemical Corp.; other manufacturers’ blends are not accepted. Thioguard and methanol are specified as no-substitution items, and Aqua Ammonia substitutions are not accepted. Sodium hypochlorite for specified pool deliveries must arrive in sealed 55-gallon drums with tamper-resistant seals. Ferric chloride storage includes 6,400- and 1,350-gallon tanks. Chlorine and sulfur dioxide are ordered together, typically 10–15 and 6–12 tanks per delivery, respectively. - Standards and handling: Many potable-water chemicals must meet applicable AWWA and ANSI/NSF requirements. Packaging and delivery formats include bulk, mini-bulk, totes, drums, pails, bags, and cylinders. - Pricing and term: One-year contract; orders are placed as needed and estimated usage is not guaranteed. Methanol pricing uses the Methanex North American Index plus markup, with monthly adjustments.

Description

Washington County, Maryland is soliciting bids for delivery of swimming pool and water/wastewater treatment chemicals for its departments and agencies, and on behalf of the City of Hagerstown and the Town of Boonsboro. The contract period is December 1, 2026, through November 30, 2027. Bids must be submitted electronically through the online bidding system by October 29, 2026, at 2:00 PM ET. Addendum 4 clarifies that deliveries to Marty Snook Pool must be made in sealed 55-gallon drums with tamper-resistant seals.

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