Water Conservation Programs


Saving water and money just got easier. We’ll show you how! Participate in the Water Use Survey Program and receive the following services at ABSOLUTELY NO COST:

Water Conservation Fact: New, High Efficiency toilets are designed to use 1.28 gallons of water per flush. Older models can use between 1.6 to 7.0 gallons per flush.

Our surveyor will come to your home or business and:

  • evaluate your irrigation system and controller, soil type and root depth. We will teach you how to read your meter, provide you with a customized watering schedule and recommend improvements to your irrigation system.
  • search for hidden leaks; provide low-flow showerheads and faucet aerators.
  • provide information and application materials for the City programs.

Please note that the Free Water Use Survey is required as a pre-requisite to qualification for all of the programs that follow, except Residential Clothes Washer Rebates:


The City of Cotati provides free installation of High Efficiency toilets to Cotati water customers. To qualify to have your old toilet replaced with a new, High Efficiency toilet, you must:

  • Be a City of Cotati water customer.
  • Have a toilet that was installed prior to 1992 and uses more than 1.6 gallons per flush.

We will replace up to TWO toilets at NO CHARGE TO YOU. For typical residential installations, the City currently provides a white Kohler Wellworth Pressure Lite K-3577 model toilet (pictured at right). Special installations and commercial situations may use a different toilet.

We will also install one water-conserving showerhead and up to three faucet aerators in your home. Please call (707) 665-3631 for an application to participate in the toilet retrofit program.

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In lieu of the free High Efficiency toilets offered by the City, the City will provide a $150 rebate per toilet for the replacement of up to TWO toilets that use more than 1.6 gallons per flush with a High Efficiency toilet of your choice. The Cotati Building inspector must first confirm that the toilets being replaced meet the requirement for rebate, so please call PRIOR TO REMOVING THE TOILET(S).

To receive an application to participate call (707) 665-3631.

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The City of Cotati provides FREE retrofitting of toilets that use more than 1.6 gallons per flush with High Efficiency toilets to commercial water customers. The program offers a variety of types of toilets ranging from Standard Tank, Wall or Floor mount, as well as ADA Height styles.

Please call (707) 665-3631 for an application to participate in this program.

Water Conservation Fact: By replacing your old clothes washer with a new high-efficiency washer a family can save 5,100 gallons of water per year.

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Effective July 1, 2009, Cotati will offer $75 water rebates for Residential High-Efficiency Clothes Washers. The program only rebates High-Efficiency Clothes Washers that are listed as Tier 3 on the Consortium for Energy Efficiency’s Clothes Washer Product List. PG&E is also offering a rebate on Clothes Washers; don’t forget to apply for this rebate as well.

For the list of approved washers and more information on Cotati’s program and terms of rebate, visit the following links:

Clothes Washer Rebate Application

Approved High-Efficiency Clothes Washer List

List of Retail Locations

For more information please call (707) 665-3631.

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The City of Cotati is offering residential and commercial customers rebates in return for reducing the amount of lawn area in their landscapes and replacing with low water use landscapes. The City will rebate you up to $1.00 for every square foot of lawn area removed. Lawns must be watered with City water and well maintained before removal. For more eligibility criteria please view the program details below.

Program Details

Program Administrative Forms

Plant List


For other useful plant information, please visit the following websites

Water Wise Gardening: www.sonoma.watersavingplants.com/default.php

Water Use Classification of Landscape Species (WUCOLS): http://www.water.ca.gov/wateruseefficiency/docs/wucols00.pdf

For more information please call (707) 665-3637.

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Help save money and water by participating in the local Qualified Water-Efficient Landscaper (QWEL) education program. Through the QWEL program, which is taught in English and Spanish by local veteran garden and water conservation experts, you will become more water efficient in landscape design, maintenance, and operation. The program provides 20 hours of instruction based on principles of proper plant selection for the local climate, irrigation system design and maintenance, and irrigation system programming and operation.

Sign up for QWEL today!

For dates and locations of upcoming QWEL training sessions and more information about the program, please call one of these numbers:

(877) 811-3242(877) 689-7721
English ProgramSpanish Program

Or visit the official website:

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