Section 17922.12 Of Chapter 2. Rules And Regulations From California Health And Safety Code >> Division 13. >> Part 1.5. >> Chapter 2.
17922.12
. (a) For the purposes of this section, "graywater" means
untreated wastewater that has not been contaminated by any toilet
discharge, has not been affected by infectious, contaminated, or
unhealthy bodily wastes, and does not present a threat from
contamination by unhealthful processing, manufacturing, or operating
wastes. "Graywater" includes wastewater from bathtubs, showers,
bathroom washbasins, clothes washing machines, and laundry tubs, but
does not include wastewater from kitchen sinks or dishwashers.
(b) Notwithstanding Chapter 22 (commencing with Section 14875) of
Division 7 of the Water Code, at the next triennial building
standards rulemaking cycle that commences on or after January 1,
2009, the department shall adopt and submit for approval pursuant to
Chapter 4 (commencing with Section 18935) of Part 2.5 building
standards for the construction, installation, and alteration of
graywater systems for indoor and outdoor uses.
(c) In adopting building standards under this section, the
department shall do all of the following:
(1) Convene and consult a stakeholder's group that includes
members with expertise in public health, water quality, geology or
soils, residential plumbing, home building, and environmental
stewardship.
(2) Ensure protection of water quality in accordance with
applicable provisions of state and federal water quality law.
(3) Consider existing research available on the environmental
consequences to soil and groundwater of short-term and long-term
graywater use for irrigation purposes, including, but not limited to,
research sponsored by the Water Environment Research Foundation.
(4) Consider graywater use impacts on human health.
(5) Consider the circumstances under which the use of in-home
graywater treatment systems is recommended.
(6) Consider the use and regulation of graywater in other
jurisdictions within the United States and in other nations.
(d) The department may revise and update the standards adopted
under this section at any time, and the department shall reconsider
these standards at the next triennial rulemaking that commences after
their adoption.
(e) The approval by the California Building Standards Commission
of the standards for graywater systems adopted under this section
shall terminate the authority of the Department of Water Resources to
adopt and update standards for the installation, construction, and
alteration of graywater systems in residential buildings pursuant to
Chapter 22 (commencing with Section 14875) of Division 7 of the Water
Code.