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Design standard offers latest guidance for implementing stormwater harvesting systems while protecting public health

ARCSA/ASPE/ANSI standard on stormwater harvesting systems

The American Society of Plumbing Engineers (ASPE) and the American Rainwater Catchment Systems Association (ARCSA) are pleased to announce that the ARCSA/ASPE/ANSI 78-2023: Stormwater Harvesting System Design for Direct End-Use Applications eBook was approved as an American National Standard (ANS) by the American National Standards Institute (ANSI) earlier this year.

First published in 2015, ARCSA/ASPE/ANSI 78-2023 went through an extensive development process using ASPE’s ANSI-accredited standards development procedures to incorporate input from all facets of the building design and related industries. The Working Group, headed by Bob Boulware, PE, spent countless hours fine-tuning the standard based on public comments and input from ASPE’s Main Design Standards Committee to ensure that the standard meets current industry and government regulations.

ARCSA/ASPE/ANSI 78-2023 will assist engineers, designers, plumbers, builders/developers, landscape and irrigation professionals, state and local government, and end users in implementing a stormwater harvesting system while protecting public health and safety. It applies to new stormwater harvesting installations, as well as alterations, additions, maintenance and repairs to existing installations. ARCSA/ASPE/ANSI 78-2023 continues where ARCSA/ASPE/ANSI 63-2020: Rainwater Catchment Systems ended, in terms of harvesting surfaces. It supersedes ARCSA/ASPE/ANSI 78-2015.

ARCSA/ASPE/ANSI 78-2023: Stormwater Harvesting System Design for Direct End-Use Applications is available for purchase as an eBook from the ASPE Bookstore.