• About

    Membership

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    Join 270+ organizations

    Join 270+ water agencies, businesses, and institutions driving smarter water use across California.

    Become a member

    Who We Are

    CalWEP is California's leading statewide network connecting water agencies, businesses, and institutions to advance conservation.

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    Our History

    A look at how CalWEP has advanced urban water efficiency across California.

    Our history

    Our People

    Meet the staff and board behind CalWEP.

    Staff & Board
  • Events

    Featured Event

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    CalWEP's Winter Plenary

    Join us December 10, 2026 for our quarterly member event.

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    In-person events

    Connect with peers, policymakers, and practitioners at convenings designed to move California water forward together.

    View Upcoming Events

    Webinars

    Accessible, expert-led online sessions on the policies, programs, and practices shaping California water efficiency.

    View Upcoming Events

    Past Events

    Missed a session? Browse our archive of past events and access recordings, materials, and key takeaways. (Members Only)

    Browse Archive
  • Tools

    Featured Programs

    Browse Tools

    Smart Rebates Program

    A turnkey rebate program for water agencies.

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    Direct Distribution Program

    An innovative, low-barrier incentive program.

    Learn More

    AI-assisted CII Classification

    Explore our pilot using AI to reclassify CII water use at scale.

    Multilingual glossary

    Plain-language water efficiency terms translated to make conservation more accessible to every California community.

    Explore the Glossary

    Implementation Guides

    Step-by-step guides for common water efficiency programs developed to help water agencies put best practices into action. This is a member-only resource.

    Access the Guides

    Landscape Transformation Resources

    From incentives to direct installation. Explore resources to help scale landscape transformation programs across the state.

    Explore Resources
  • Trainings

    Upcoming Trainings

    All Trainings
    Educational Facilities - California Water Association

    Educational Facilities - California Water Association

    September 25, 2026 — Norwalk, CA

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    QWEL - CalWEP Member Training

    QWEL - CalWEP Member Training

    October 5, 2026 — Everywhere, CA

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    Nonfunctional Turf Training - Elsinore Valley Water District

    Nonfunctional Turf Training - Elsinore Valley Water District

    November 3, 2026

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    For Landscapers

    Turnkey QWEL trainings help landscapers earn EPA WaterSense certification — delivered for water agencies statewide.

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    For Plumbers

    The Leak Repair Elite Program, developed with IAPMO, equips plumbers to identify and fix leaks in homes and businesses.

    Learn more

    Water + Energy Connection

    No-cost trainings for hotels, commercial kitchens, and medical facilities — offered in partnership with SoCalGas across their service area.

    Learn More
  • Compliance

    Featured Resource

    CalWEP LAM Explorer Powered by Waterview

    The CalWEP LAM Explorer Powered by WaterView helps urban water suppliers meet California’s Making Conservation a Way of Life regulations. This dataset provides essential information for both the residential outdoor and CII-DIM water use standards.

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    Compliance Resources Hub

    Your one-stop destination for regulatory guidance, timelines, and all of CalWEP's compliance tools

    Explore the Hub

    Nonfunctional Turf Resources

    Navigate California's NFT (AB 1572) requirements with guides, templates, and support built for water agencies on the front lines.

    Explore Resources

    Advocacy

    CalWEP shapes California water policy by amplifying the member voice on legislation, regulations, and state planning processes.

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  • Publications

    Featured Publication

    All Publications

    Less Lawn, More Compliance

    Our latest essential read — curated to keep you current on what's shaping California water efficiency practice and policy.

    Read Guide

    Building Community Capacity Through Utility Partnership

    This case study is part of a series on Direct Install and Landscape Transformation programs.

    Read the Case Study

    Estimating Water Savings

    The CalWEP M&E Guidebook offers actionable guidance for California water agencies to measure the effectiveness of urban conservation programs.

    View & Download

    CUWCC Archive

    Access the legacy archive of publications from the California Urban Water Conservation Council — CalWEP's predecessor organization.

    Browse
  • MyCalWEP

The CalWEP Community

CalWEP's mission is to maximize urban water efficiency and conservation throughout California.

We do this by supporting and integrating innovative technologies and practices; encouraging effective public policies; advancing research, training, and public education; and building collaborative approaches and partnerships.

270+

CalWEP represents more than 270 member organizations across California, including water agencies and businesses.

25M

CalWEP members serve more than 7.5 million connections, touching nearly 25 million Californians.

35 years

Building on the legacy of CUWCC, CalWEP has championed water efficiency across California since 1991.

Meet Our Members >>Meet Our Collaborators >>
Highlights

CalWEP's Winter Plenary - December 10, 2026

The California Water Efficiency Partnership invites members and partners to join us for our Winter 2026 Plenary in Sacramento hosted by Regional Water Authority. This one-day, in-person event will bring together water efficiency professionals from across California for facilitated discussions, peer-to-peer learning, and timely updates on shared challenges and emerging priorities.

Register Today
Highlights

Peer to Peer: 10th Anniversary Recap

This year marked the 10th anniversary of Peer to Peer with more than 200 water efficiency professionals gathered in Napa for two days of learning, collaboration, and connection.

Catch up on all the action through our top 10 photo recap!

Read the Recap
Highlights

Estimating Water Savings

After several years in the making, CalWEP is proud to release Estimating Water Savings: Measurement and Evaluation Methods for Urban Water Conservation Programs. You don't need to be a statistician to get value from M&E - the guidebook exists so you can point to credible methods and back up your work!

Download the Guidebook
Highlights

Less Lawn, More Solutions

CalWEP members are at the forefront of implementing California’s nonfunctional turf ban (AB 1572). Through a collaborative effort with our members, CalWEP has produced a full suite of resources designed to support consistent, effective communication and implementation statewide.

Access Nonfunctional Turf Resources

Latest News

CalWEP’s 20 Questions with Max McSlavkin

 September 24, 2026

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From Legislation to Implementation: CalWEP Weighs In on SB 597 Research and Recommendations

 September 4, 2026

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Beyond Outreach: Building Equity Strategies That Increase Water Efficiency Program Participation

 August 28, 2026

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CalWEP In Chicago: A Water Efficiency & Conservation Symposium to Remember

 August 24, 2026

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Recent Resources

Case Study: Building Community Capacity Through Utility Partnership

This case study focuses specifically on community capacity and partnership. It is written for water agencies interested in launching, evolving, or strengthening Direct Install or Landscape Transformation programs and want...

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Case Study: Getting Board Buy In on Direct Installation Conservation Programs

Direct‑install turf removal and landscape transformation programs are increasingly recognized as effective tools for reducing water use, expanding participation, and advancing equity goals, particularly where traditional rebate programs have underperformed....

Read More

Outreach and Education Best Practices Guide for CII Customers

Commercial, Industrial, and Institutional (CII) customers represent one of the most important but also one of the most difficult to reach segments for water conservation outreach. These customers include everything...

Member Only Content

Estimating Water Savings

Measurement and evaluation (M&E) of water savings are fundamental to understanding the effectiveness of urban water conservation programs. Measurement involves the systematic collection of data on water usage, program participation,...

Member Only Content
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Benefit from being a CalWEP Member

A network of peers to learn from and share with

The content that CalWEP provides for upcoming/continuing regulations is invaluable. With your guidance and some of the assistance that you provide we have been able to keep up with the new regulations without having to hire outside help. For a Disadvantaged Community – this is extremely advantageous. Kudos to you and your team!

Water Conservation Specialist, City of Redding

We partner with CalWEP on our Smart Rebates program. They handle the approval, administration and processing of rebate applications and send payments directly to our customers. This important water-saving program allows District staff to focus on other water-saving endeavors.

Engineering Technician/Water Conservation Specialist, Carpinteria Valley Water District

CalWEP is an incredible key partner in meeting water use efficiency goals and requirements. Their vital Peer to Peer events provide excellent learning opportunities. In addition, their practical tools assist water suppliers as they navigate the implementation of California’s water use efficiency regulations in support of water supply resiliency goals.

Senior Water Resources Specialist, San Diego County Water Authority

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