Model Water Efficient Landscape Ordinance

MWELO Image of Kerman

Drought-tolerant plants, mulch, permeable hardscape, and efficent-irrigation save water while offering habitat for pollinators.

About half of the urban water is used for landscape irrigation in California. Large water savings can be gained by efficient landscape design, installation, and maintenance. New development and retrofitted landscape water efficiency standards are governed by the Model Water Efficient Landscape Ordinance (MWELO). All agencies must adopt, implement, and enforce the MWELO or a more stringent ordinance.

 

In 2015, Executive Order B-29-15 (EO) tasked DWR with revising the 2010 updated MWELO to increase water efficiency standards for new and retrofitted landscapes through encouraging the use of more efficient irrigation systems, graywater usage, and onsite storm water capture, and by limiting the portion of landscapes that can be covered in turf. Updating the ordinance to incorporate these elements will help stretch our limited water supplies. The EO also required that agencies report on their implementation and enforcement of local ordinances by December 31, 2015.  DWR’s Water Use and Efficiency branch worked with several affected agencies, interested groups, and the public to prepare the current (2015) updated MWELO to improve landscape irrigation water savings in accordance with the EO.   

 

2018 MWELO Report Assistance and Forms:

For previous submittals and archived public process records, please contact WELO@water.ca.gov.


MWELO References

The Landscape Stakeholder Advisory Group (LSAG) was organized in December 2016 to provide a public forum for interested stakeholders in the landscape industry and public agency sector to provide input on landscape water use efficiency topics. The LSAG is open to all interested stakeholders. Currently members of LSAG include Landscape Architects, Landscape Designers, Landscape Contractors, Irrigation Consultants, irrigation equipment manufacturers, soil scientists, city and county staff, water suppliers, State agencies, educators, horticulturists, nursery growers and arborists. To join the LSAG, email Landscape@water.ca.gov. In the subject line, write “Join LSAG”.

Related Pages

Contact Us

Phone: (916) 651-9676

Email: WELO@water.ca.gov

 

Events

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DWR will host 3 public meetings to present the Draft Proposition 68 SGM Grant Program 2019 Guidelines and Proposal Solicitation Package, and to solicit comments. DWR staff will be on-hand to answer questions, review the documents, and discuss the Planning Grant – Round 3 Solicitation expectations an ...
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This one-day workshop is designed as a review course of basic floodplain management principles for those who are considering taking the examination to become a Certified Floodplain Manager (CFM®).
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Learn how to use the Flood Insurance Rate Map, determine the lowest floor, and complete the new FEMA elevation certificate.
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