Rainwater Harvesting Rebate

IMPORTANT UPDATE: As of July 1, 2023, the following rebate program changes will take effect: 

  • Administrative changes: 
    • Customers will be required to take an eligible workshop before installation of their system begins.  
    • Customers will apply online for the rainwater harvesting rebate.  
    • Pre-approval will be required before installation of a rainwater harvesting system. Pre-approval entails (1) taking the required workshop, (2) submitting a site plan with system features and (3) their estimated sizes. Upon approval by Tucson Water to proceed with installation, the customer will have one year to complete installation of their system. If customer does not install within one year they will have to retake the workshop and reapply.  
    • Inspection will be required after installation, before rebate is approved. 
  • Rebate pricing changes: 
    • Remove the $500 cap for passive systems (basins & earthworks); All water harvesting features on a property can be combined and calculated to a maximum of $2000 rebate. 
    • Calculate the rebate for passive systems based on the size of the basin(s); The rebate for passive systems will be $1.50/gallon, based on basin volume, if the system is correctly sized.  
    • A rainwater harvesting system must be sized to capture at least one inch of rainwater from the drainage area (usually roof area) to receive the full rebate amount ($1/gal active and $1.50/gal passive). If a system is not sized large enough to capture the full one inch of rainfall, the customer will receive $0.50/gal for all system features. A property can have multiple drainage areas. 


Workshop Providers

To review a list of upcoming courses, please visit our partner’s website who offer a variety of dates and class modalities.

To Qualify

  • Applicants must be Tucson Water customers with active water service.
  • Applicants must attend an approved Rainwater Harvesting Incentives Program Workshop.

Learn more at the links below:

How to Qualify

Applicants may apply for both passive and active levels, not exceeding $2,000 for the combination per property.

Learn more

Workshop and Project Plans

A free, three-hour workshop and submission of a project plan are required to qualify. See a list of area resources for rainwater harvesting.

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Frequently Asked Questions

Frequently asked questions about the rainwater harvesting rebate program.

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Rainfall Calculator

Use our online calculator to estimate how much rainfall you can capture from your roof and begin planning your system.

How to Apply

Complete the application, download it, and mail it with project plan and original, itemized receipt(s)

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