hot topics RUMBLES SEPTEMBER 2015 | 23 As a result of House Bill 13-1044, Colorado took a step toward legalizing graywater for ben-eficial uses. The Colorado Department of Public Health and Environment’s Water Quality Control Division worked with stakeholders and other State of Colorado agency representatives over a two year period to develop a draft of Colorado’s very first graywater regula-tion. Regulation 86: Graywater Control Regulation was adopted by the Water Quality Control Commission on May 11, 2015. Regulation 86 defines gray-water, allowed graywater sources, uses of graywater, and graywater users. Most important, Regulation 86 outlines requirements, prohibitions, and stan-dards for graywater use for nondrinking purposes. The legislation made graywater an opt-in program for local jurisdictions and not a state-wide program. To allow graywater use, a city, city and county, or county will have to adopt an ordinance or resolution to allow graywater use within its jurisdiction by developing a graywater control program that meets the requirements of Regulation 86. In Colorado, graywater means that portion of wastewater that before being treated or combined with other wastewater is collected from fixtures within residential, commercial, or Colorado Graywater Use— One Step Closer By Melanie Criswell Figure 1. Landscape irrigation reuse can offset a large summer demand, but leaves an underutilized resource in winter; potable reuse serves a large year-round demand.
RUMBLES - September 2015
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