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Using Graywater and Stormwater to Enhance Local Water Supplies An Assessment of Risks, Costs, and Benefits (2016) / Chapter Skim
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Appendix B: Summary of State Laws and Regulations for Graywater and Stormwater
Pages 201-206

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From page 201...
... http://labor.alaska.gov/lss/forms/plumbing-stats-regs.pdf Arizona None, although Arizona water rights laws limit surface water appropriation to water ARS § 45-141 "flowing in streams, canyons, ravines or other natural channels, or in definite underground channels…and of lakes, ponds and springs on the surface." The state previously offered tax credits for rainwater harvesting systems. California The state recognizes that rainwater and stormwater capture can contribute to local water Cal.
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From page 202...
... "The collection of water harvested in this manner should not reduce the amount of runoff that would have occurred from the site in its natural, pre-development state." North North Carolina Department of Environment and Natural Resources encourages water reuse http://www.ncleg.net/Sessions/2011/Bills/House/PDF/ Carolina practices including rainwater harvesting and graywater. The state building code permits the H609v6.pdf use of cisterns to provide water for flushing toilets and outdoor irrigation.
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From page 203...
... The Idaho State Plumbing Code is modeled after the 2009 UPC; Idaho amendments clarify that graywater fixtures up to, but not including, exterior irrigation tanks must be inspected by the authority issuing building permits, while Department of Environmental Quality has jurisdiction to inspect and approve the installation of the exterior irrigation system tank and all piping up to the point of disposal in accordance with Individual/Subsurface Sewage Disposal Rules. Indiana The 2012 Indiana Plumbing Code, modeled from the 2009 International Plumbing Code 675 Indiana Admin.
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From page 204...
... Public health statute states that graywater systems shall be § 143-350, 355.5 regulated by the health department under rules promulgated by the environmental management commission to encourage and promote the safe and beneficial use of graywater. In 2008, North Carolina passed House Bill 2499, a drought bill that allows graywater reuse by watering with buckets in case of a drought year, which will sunset when graywater rules are promulgated.
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From page 205...
... The summary does not include state constitutional provisions, court decisions, guidance documents, or local ordinances that may be relevant to the legality of graywater reuse in a particular location. This table does not include state laws establishing green infrastructure tax credits or grant programs.
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From page 206...
... The department has the authority to review design plans and details to accept a graywater irrigation system different from the typical system provided sufficient performance and protection are provided. On-site disposal systems with flow >3,000 gallons per day For large systems, the department handles permits on case-by-case basis.
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Key Terms

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  • health department

  • rooftop capture
  • direct reuse
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  • florida plumbing

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