An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Greening EPA

Best Practices for Increasing Resiliency at EPA Facilities

Ada GeneratorThis emergency generator at EPA’s Robert S. Kerr Environmental Research Center in Ada, Oklahoma, is elevated to protect from possible damage associated with stormwater runoff.EPA has identified numerous best practices for its facilities to implement to enhance resiliency against various extreme weather event stressors:


  • Avoid new construction in special flood hazard areas. When construction is necessary in these zones, build to at least two feet above the 100-year flood elevation. For more critical buildings (e.g., data centers), build to at least three feet above the 100-year flood elevation.
  • Carefully consider the location of mechanical systems, information technology infrastructure, pipe conduit entry points and other mission-critical equipment.
  • Ensure that drainage systems and site grading are designed to direct water away from the facility.


  • Meet or exceed building code requirements for wind-resistant construction in coastal areas and other locations that experience high-wind events.
  • Install impact-resistant windows in facilities located in in areas that experience tornadoes, hurricanes and other high-wind events.


  • Reduce potable water consumption through the use of WaterSense® labeled products and innovative reuse of greywater (e.g., air handler condensate, rainwater harvesting).
  • Implement water-efficient landscaping and irrigation strategies.


  • Consider the impact of window insulation values and building envelope features during design to increase thermal comfort under projected extreme temperature scenarios.


  • Create clear zones around buildings in areas with increased wildfire risk.

Combined Stressors Associated With Severe Weather

  • Source supplies and services locally to reduce vulnerabilities in the supply chain.
  • Ensure reliable backup power to critical research equipment and facility areas.

EPA is incorporating some of the lessons learned from its resiliency assessments into the Agency’s space planning and design guidelines. This will help increase the resiliency of all future construction projects and major renovations.