Model Water Efficient Landscape Ordinance
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.
2019 MWELO Report Assistance and Forms:
- Excel: 2019 MWELO Form
To submit the 2019 MWELO Report to DWR, please email the completed 2019 MWELO Excel form (above) to WELO@water.ca.gov.
Need to submit a report for a different year? Please download and fill the appropriate year’s Report Template below. Send it completed to WELO@water.ca.gov.
To view and download previous submissions, please see MWELO Implementation Reports below.
Report Templates for Previous Reporting Years:
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”.
The meeting materials listed below are available upon request.
- Agenda 01/30/17
- Presentation 1
- Presentation 2
- Summary Notes
- LSAG Agenda 04/24/17
- LSAG Meeting Summary Notes
- LSAG Survey Summary Report
- LSAG Survey Summary Assessment Overview
- LSAG Suggested Workgroups
- LSAG Determined Workgroups
- LSAG Agenda 09/11/17
- LSAG Water Budget Workgroup Agenda
- LSAG Workgroup Breakout Session Agenda
- LSAG Landscape Plans Agenda
- LSAG Summary Notes
- LSAG Agenda 12/18/17
- LSAG Golf Water Budgets Proposal
- LSAG White Paper
- LSAG Overview Slides
Phone: (916) 651-9676