Water Efficiency

These laws and requirements are related to water efficiency sustainability goals. Note: This page will be updated soon with information about Executive Order 13834: Efficient Federal Operations, which was signed on May 17, 2018, and replaced and revoked Executive Order 13693.

Stormwater Management
Title  Legal Authority  Originating Legislation  Summary 
Predevelopment Hydrology

The sponsor of any development or redevelopment project involving a Federal facility with a footprint that exceeds 5,000 square feet is required to use site planning, design, construction, and maintenance strategies for the property to maintain or restore, to the maximum amount technically feasible, the predevelopment hydrology of the property with regard to the temperature, rate, volume, and duration of flow.

Water Conservation Measures and Strategies
Title  Legal Authority  Originating Legislation  Summary 
Water Conservation Technologies (1)

If water is used to achieve energy efficiency in new Federal buildings in accordance with 42 U.S.C. § 6834(a)(3), then water conservation measures shall be applied to the extent that they are life cycle cost-effective.

Water Conservation Technologies (2)

In addition to the use of water conservation technologies otherwise required by 42 U.S.C. 6834, water conservation technologies are to be applied to the extent that the technologies are life cycle cost-effective.

Water Evaluations
Title  Legal Authority  Originating Legislation  Summary 
Energy and Water Evaluations

Agency energy managers are required to complete an annual comprehensive energy and water evaluation for approximately 25% of agency covered facilities in a manner that ensures that an evaluation of such facility is completed at least once every four years.

Follow-up on Implemented Measures

For each measure implemented under 42 U.S.C. § 8253(f)(4), agencies are required to ensure that equipment is fully commissioned at acceptance to be operating at design specifications; a plan for appropriate operations, maintenance, and repair of the equipment is in place at acceptance and is followed; equipment and system performance is measured during its entire life to ensure proper operations, maintenance, and repair; and energy and water savings are measured and verified.

Implementation of Identified Energy and Water Efficiency Measures

Not later than two years after the completion of each evaluation under 42 U.S.C. § 8253(f)(3), each agency may implement any energy- or water-saving measure that was identified as life cycle cost-effective and bundle individual measures of varying paybacks together into combined projects.