Revisions to Stormwater Harvesting System Design Standard Are Available for Public Review

ASPE’s Main Design Standards Committee and Working Group 78 have reviewed the comments received during the first comment period for the revision to ARCSA/ASPE 78-2015: Stormwater Harvesting System Design for Direct End-Use Applications, and the substantive changes resulting from that review are now available for public comment.

This standard was developed by a joint effort of ASPE and the American Rainwater Catchment Systems Association (ARCSA). The purpose of this standard is to 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. This standard is intended to apply to new stormwater harvesting installations, as well as alterations, additions, maintenance, and repairs to existing installations. It applies, for example, to the collection of stormwater from the transportation grid (vehicular parking, driving, or other similar surfaces), elevated parking structures, surface public right-of-ways, and storm drain systems.

Directly and materially affected interests wishing to comment on the substantive changes are requested to do so by December 19, 2022.

To obtain a copy of the standard and the comment form, please contact ASPE’s Director of Communications & Publications, Gretchen Pienta, at [email protected]. You can also find these documents at

A notice of this public review was published in the November 4, 2022 edition of ANSI Standards Action.

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