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Wastewater Rules Under Development
Large On-site Sewage Systems
On-site Sewage Tanks
Wastewater Management Section Site Directory
Resources
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Greywater Reuse
Rule Development Activities
Background
Rule Advisory Committee Members
Committee Meetings
Official Rulemaking Documents
Technical Documents
Contact Information
Background
We are beginning the process of developing rules for outdoor
reuse of greywater for subsurface dispersal and irrigation.
RCW
90.46.015 requires us to adopt a greywater rule by the end of
next year. The use of greywater, which includes flows from showers,
sinks, washing machines, kitchen sink, and dishwashers, can reduce
the use of potable water and promote water conservation. However,
greywater can contain harmful bacteria, viruses, and chemicals. The
new rule will establish a statewide framework for greywater reuse
that protects human health and the environment. The rule will not
address greywater reuse inside buildings (for example, using
greywater for toilets). The Washington State Building Code Council
is developing rules for this aspect of greywater reuse.
We are establishing a rule advisory committee to advise the
department as we develop draft rule language. We will look at
low-technology, low-cost options for greywater systems, and will
discuss with the committee what is scientifically required in this
regard. The committee meetings will be open to the public. Information about committee meetings will be posted to this
site as it becomes available.
We have established a listserv through which we will send
information and updates on the rulemaking process by email. If
you would like to receive these emails, you can subscribe to
the Greywater Reuse Listserve by going to
http://listserv.wa.gov/cgi-bin/wa?A0=WASTEWATER-GREYWATER,
select the "Join or Leave" link on that page, and follow the
instructions listed there. You can unsubscribe at any time.
Official Rulemaking Documents
Greywater Reuse Rule Advisory Committee
Committee Meetings
- September 23, 2009, Department of
Health, Kent Offices
- October 27, 2009,
Public Health
Lab, Shoreline
- November 19, 2009,
Department of
Health, Kent Offices
- December 17, 2009,
Department of
Health, Kent Offices
- January 27, 2010,
Department of
Health, Kent Offices
- February 24, 2010, Department of
Health, Kent Offices
- March 24, 2010, Department of
Health, Kent Offices
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Technical and Reference Documents
Contact information:
- Rule development process, rule language,
or meeting information:
Lilia Lopez, Rule
Development Coordinator
(360) 236-3071
Lynn Schneider,
Greywater Technical Lead
(360) 236-3379
- Greywater reuse listserv (subscribe to have updated information emailed to
you):
http://listserv.wa.gov/cgi-bin/wa?A0=WASTEWATER-GREYWATER top
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