The Department of Defense, specifically the Naval Research Laboratory, intends to award a sole source contract for the maintenance renewal of a deionized water system to EVOQUA WATER TECHNOLOGIES LLC, based in Colorado Springs, CO. This procurement involves the treatment of the deionized water system, which is critical for various research and operational activities within the laboratory. The contract will be executed under Simplified Acquisition Procedures, with a focus on ensuring that the specific requirements of the agency are met efficiently. Interested parties have five calendar days from the publication of this notice to express their interest and capability, and should direct inquiries to Marche Hampton at marche.hampton@nrl.navy.mil or Kimberly Martin at kimberly.martin@nrl.navy.mil.