ALUM (ALUMINUM SULFATE) and POLYALUMINUM CHLORIDE (POLYALUMINUM HYDROXYCHLOROSULFATE) IDIQ

The U.S. Army Corps of Engineers (USACE) Baltimore District is soliciting proposals for an indefinite-delivery indefinite-quantity (IDIQ) single-award delivery-order contract to supply Alum (Aluminum Sulfate) and Polyaluminum Chloride (Polyaluminum Hydroxychlorosulfate) to support water treatment operations. These chemicals are essential materials used by the Washington Aqueduct Division (WAD) at its Dalecarlia and McMillan Water Treatment Plants, which collectively serve approximately one million residents in the District of Columbia and Northern Virginia. The solicitation was posted on April 24, 2026, with a response deadline of May 29, 2026. Interested contractors should review the complete solicitation documentation and statement of work available on the Unison Global Marketplace platform. The contract is classified under NAICS code 325180 (Other Basic Inorganic Chemical Manufacturing) and PSC code 6810 (Chemicals).

This procurement is not subject to any small business set-aside or other socioeconomic designations, making it open to all qualified contractors. The solicitation does not specify a current incumbent or provide detailed budget parameters in the available notice information. Performance will take place in Washington, DC 20001, supporting the critical water treatment and supply infrastructure that serves the region. Detailed contract requirements, including specific quantity estimates, pricing structures, and evaluation criteria, are contained in the draft statement of work accessible through the Unison Global Marketplace. Prospective bidders should access the complete solicitation documents promptly to understand all technical specifications and submission requirements for this important water treatment chemicals supply contract.