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Relevant Mandates and Rating Systems

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Mandates / Standards Rating Systems

Guiding Principles for Sustainable Federal Buildings: New Construction and Modernization

  • As per EISA 2007, thirty percent of the hot water demand should be met using the installation of solar hot water heaters when lifecycle cost-effective.
  • Section III of the Guiding Principles addresses the need to "Protect and Conserve Water" in facilities indoors and outdoors as well as using alternative water sources and managing stormwater.
  • Guidance requires reducing outdoor water use by 50% compared to conventional practices and the installation of water efficient landscaping.
  • Water meters are required both inside and outside the facility, as are the use of water-efficient products.

Determining Compliance with the Guiding Principles for Sustainable Federal Buildings Sustainable Practices for Designed Landscapes

Relation to Water: hot water energy, water harvesting, water protection and conservation, graywater, efficient plumbing fixtures, efficient landscaping, water metering

Guiding Principles for Sustainable Federal Buildings: Existing Buildings

  • Install water meters.
  • Use water efficient products.
  • Reduce indoor potable water use by 20% compared to the specific building’s water use data in 2007.
  • Install separate water meters for irrigation systems above 25,000 sf and reduce potable water for irrigation by at least fifty percent compared to conventional practices.

Determining Compliance with the Guiding Principles for Sustainable Federal Buildings Sustainable Practices for Designed Landscapes

Relation to Water: water protection and conservation, water metering, reduced irrigation, water-efficient products

Energy Independence and Security Act (2007)

The Energy Independence and Security Act (EISA) requires facility managers, as defined by the act, to complete comprehensive water evaluations through retro-commissioning of 25 percent of covered facilities each year, so that each facility is completed at least once every four years. Water efficiency measures were specified, with the promotion of bundling measures into combined projects as a cost-effective strategy to reduce overall energy consumption per square foot by thirty percent by FY2015. Measuring and verifying water savings through metering is also made explicit.

https://www.gpo.gov/fdsys/pkg/PLAW-110publ140/html/PLAW-110publ140.htm

Relation to Water: water commissioning, solar hot water equipment, water conservation, water cost savings