COASTLINE LTD.

Coastline Ltd. specializes in water treatment systems, chemical supply, and mechanical infrastructure support for critical government facilities. The company delivers on-site water quality management, including boiler and HVAC chemical treatment, reverse osmosis system installation, water softener servicing, and filtration housing replacements. Their technical expertise spans chemical dosing protocols, plumbing system diagnostics, and compliance-driven water treatment for sensitive environments such as museums, military installations, and federal laboratories. Coastline distinguishes itself through precision application of industrial water chemistry and integrated mechanical maintenance, ensuring operational continuity in mission-critical facilities where water purity and system reliability are paramount. The contractor maintains consistent engagement with the Department of Defense, providing water treatment services at defense sites including Fort Detrick, Aberdeen Proving Ground, and Dahlgren, often supporting HVAC and boiler systems under long-term maintenance frameworks. The Smithsonian Institution is a key client, relying on Coastline for the preservation of artifacts through controlled water systems, including RO units and filtration infrastructure in high-value museum environments. Additional work for the Department of Veterans Affairs and other federal entities underscores their role in sustaining infrastructure integrity across federal campuses. Coastline’s primary industry focus is on water supply and irrigation systems (NAICS 221310) and miscellaneous chemical product manufacturing (NAICS 325998), reflecting a niche in chemical-based water treatment and infrastructure maintenance rather than large-scale construction. Their work intersects environmental compliance, industrial plumbing, and laboratory-grade water systems, positioning them as a specialized provider for federal agencies requiring technical precision in water quality management. Based in Alexandria, Virginia, Coastline Ltd. operates as a small business under the 2L entity structure. While no formal government certifications are listed, their consistent performance across high-sensitivity federal sites demonstrates a proven track record in delivering compliant, mission-critical water systems services.