Water Conservation at EPA
The U.S. population has doubled over the past 50 years, while our thirst for water has tripled. With at least 40 states anticipating water shortages by 2024, the need to conserve water is critical. EPA strives to integrate water management best practices at all of its facilities.
EPA occupies two main types of facilities: offices and laboratories. Plumbing, heating/cooling and irrigation needs comprise a large percentage of typical office water use. The Agency has minimized those uses by installing high-efficiency plumbing fixtures and eliminating irrigation.
Laboratories use water for laboratory processes, water purification and steam sterilization. Laboratories also have significant heat loads, so a significant amount of water is used as cooling tower make-up. EPA has focused much of its water-saving efforts on laboratory facilities.
In 2002, EPA began reducing its water footprint, prior to any federal requirements mandating water conservation. EPA’s water management planning and water use reduction efforts have produced significant results.
EPA water reduction strategies include:
- Monitoring water meters and tracking use
- Installing WaterSense labeled and other high efficiency restroom fixtures
- Eliminating single-pass cooling
- Optimizing cooling tower efficiency
- Minimizing or eliminating landscape irrigation.
EPA Water Conservation Results
EPA reduced its water intensity by 43.5 percent in FY 2021 compared to FY 2007. EPA continues to manage water to maintain progress and implements water projects to reduce water consumption further.