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The California Water Boards' Annual Performance Report - Fiscal Year 2013-14

PLAN AND ASSESS: WASTEWATER RECYCLING

GROUP:  WASTEWATER RECYCLING-WATER RECLAMATION
MEASURE:  RECYCLED WATER BY TYPE OF USE
MESSAGE:  Agriculture irrigation accounts for 37% of California's total recycled water use in 2009.
KEY STATISTICS FOR 2009

 

MEASUREMENTS 

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WHAT THE MEASURE IS SHOWING

Based on 2009 survey results, 66 percent of all recycled water is used for a combination agriculture (37%), landscape irrigation (17%), and groundwater recharge (12%, indirect potable use).

WHY THIS MEASURE IS IMPORTANT

The Strategic Plan Update 2008-2012 for the Water Boards includes a priority to increase sustainable local water supplies available for meeting existing and future beneficial uses by 1,725,000 acre-feet per year, in excess of 2002 levels, by 2015, and ensure adequate water flows for fish and wildlife habitat. The Water Board’s 2009 Recycled Water Policy (Policy) is intended to support the Strategic Plan priority to Promote Sustainable Local Water Supplies. Increasing the acceptance and promoting the use of recycled water is a means towards achieving sustainable local water supplies and can result in reduction in greenhouse gases, a significant driver of climate change. The Policy is also intended to encourage beneficial use of, rather than solely disposal of, recycled water. The mission of the Water Recycling Funding Program (WRFP) is to promote the beneficial use of treated municipal wastewater (water recycling) in order to augment fresh water supplies in California by providing technical and financial assistance to agencies and other stakeholders in support of water recycling projects and research.

TECHNICAL CONSIDERATIONS

 

GLOSSARY

Recycled Water
Recycled water means water which, as a result of treatment of waste, is suitable for a direct beneficial use or a controlled use that would not otherwise occur and is therefore considered a valuable resource. (Water Code 13050(n)).

Acre-foot
It is defined by the volume of one acre of surface area to a depth of one foot. Since the acre is defined as a chain by a furlong (66 ft 660 ft) the acre-foot is exactly 43,560 cubic feet. One acre-foot is taken to be the planned water usage of a suburban family household, annually.

Indirect Potable Reuse
The planned incorporation of recycled water into a raw water supply such as in potable water storage reservoirs or a groundwater aquifer, resulting in mixing and assimilation, thus providing an environmental buffer.

( Page last updated:  6/19/14 )