The U.S. Army Corps of Engineers Baltimore District plans a single-award IDIQ contract for the supply of aluminum sulfate and polyaluminum chloride. The services will be performed for the Washington Aqueduct Division in Washington, D.C., which supplies water to the District of Columbia and Northern Virginia. The chemicals are used at the Dalecarlia and McMillan Water Treatment Plants. The government is exploring the use of a reverse auction for this procurement. An official Request for Quote is anticipated to be posted around March 18, 2026.