Gray water, also spelled as grey water, is water that already has
been used domestically, commercially and industrially. This
includes the leftover, untreated water generated from clothes
washers, bathtubs and bathroom sinks.
Installing drought-tolerant landscaping or using recycled water
for irrigation could become substitutes for grey water systems
under a proposal from the Marin Municipal Water District. The
district’s communications and water efficiency committee has
endorsed a proposal that will overhaul the grey water ordinance
that was adopted in 2016. Grey water is wastewater from
bathtubs, showers, bathroom sinks and clothes washers. The
existing ordinance states that applicants seeking new water
service, and projects requesting expanded water service for
large residential or commercial remodels, must install a grey
water recycling system for landscape irrigation. However, the
district allowed customers to self-certify whether a grey water
system was feasible, resulting in many owners of eligible sites
exempting their properties, staff said.
This 25-minute documentary-style DVD, developed in partnership
with the California Department of Water Resources, provides an
excellent overview of climate change and how it is already
affecting California. The DVD also explains what scientists
anticipate in the future related to sea level rise and
precipitation/runoff changes and explores the efforts that are
underway to plan and adapt to climate.
As the state’s population continues to grow and traditional water
supplies grow tighter, there is increased interest in reusing
treated wastewater for a variety of activities, including
irrigation of crops, parks and golf courses, groundwater recharge
and industrial uses.
The 28-page Layperson’s Guide to California
Wastewater is an in-depth, easy-to-understand publication
that provides background information on the history of wastewater
treatment and how wastewater is collected, conveyed, treated and
disposed of today. The guide also offers case studies of
different treatment plants and their treatment processes.
Grey water, also spelled as gray water, is water that already has
been used domestically, commercially and industrially. This
includes the leftover, untreated water generated from washing
machines, bathtubs and bathroom sinks.