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

The U.S. Army Corps of Engineers Baltimore District is re-procuring an indefinite-delivery indefinite-quantity (IDIQ) single-award contract for the procurement of aluminum sulfate and polyaluminum chloride, critical chemicals used in water treatment at the Washington Aqueduct Division’s Dalecarlia and McMillan Water Treatment Plants. These facilities provide potable water to approximately one million residents across the District of Columbia and Northern Virginia, making the reliability and quality of chemical supply essential to public health and infrastructure operations. The solicitation, identified as W912DR26RA039, was posted on April 24, 2026, with responses due by May 29, 2026, and is conducted as a combined solicitation with no set-aside provisions, open to all eligible contractors. The contract falls under NAICS code 325180 for other inorganic chemical manufacturing. All contract details, including the draft statement of work, are available through the Unison Global Marketplace, with performance expected to occur primarily in Washington, D.C., at the water treatment plants. The contracting office is located in Baltimore, Maryland, under the Department of Defense, and inquiries should be directed to Clark Miller, the primary point of contact, via email or phone. Bidders must review the full solicitation online via the provided SAM.gov link and Unison platform to understand technical specifications, delivery requirements, evaluation criteria, and any additional terms governing the performance and administration of the IDIQ contract.