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Rainwater harvesting is a water conservation method that involves the capture, diversion, and storage of rainwater for later use. 

Upcoming Programs & Workshops

Rainwater Harvesting 101Friday, Feb. 5 • TBD
Rainwater Harvesting 101 • Friday, June 4 • TBD 

Irrigation for the Rainwater Harvester • Fall/Winter 2020 • TBD
EarthKind Landscapes • Spring 2021 • TBD

Register for Rainwater Harvesting 101

Feel free to reach out by phone  (512) 409-7028 or email if you have any questions about upcoming programs.

Rainwater Harvesting Rebate Program

Post Oak Savannah offers a rainwater harvesting rebate to promote and encourage collection as a water conservation method. Rainwater harvesting can help reduce peak season pumping demands on our aquifers in the summer months, reduce stormwater runoff, and provide an alternative water supply source that in turn improve water quality and reduce erosion. For every 1 inch of rainfall 0.6 gallons can be collected for each square foot of collection surface ->  (2,000 sq. ft. roof) x (0.6 gallons) = 1,200 gallons harvested per 1 inch of rainfall.

Application Form & Guidelines

Program Policy & Guidelines
Rebate Application Form

Program Details & Qualifications

    1. Applicants must reside or own land within the District (Burleson or Milam County).
    2. Applicants must complete an approved Rainwater Harvesting 101 course to qualify.
    3. Only one application per-household can be filed within a 12 month period with a lifetime reimbursement maximum of $3,000.
    4. Reimbursements are limited to $1.00 per gallon of the rainwater storage capacity of the completed system; includes tanks, gutter, tank foundation, overflow, and other misc. items needed to create the system.
    5. Site plans must be approved by District staff before the purchase of reimbursable rainwater equipment and will be inspected after installation.
    6. Short-term financial assistance may be available for qualifying applicants, contact the office for details.

Rainwater Harvesting Resources

Not sure how big of a tank you’ll need?
Try out a few of these calculators, they’re designed to help determine how much water you’ll want to save and what size harvesting system will best suit your needs. 

Need help planning your system?
Here are a few guides designed to help homeowners create their own system. 

Texas Tax Code Incentive
The Texas Tax Code §151.355 exempts rainwater harvesting equipment and supplies from state sales tax. To claim this exemption, a purchaser of rainwater harvesting equipment must furnish a Tax Exemption Application Form 01-339 to the supplier of the equipment.

Resources for Rainwater Tanks
Explore ideas linked below and reach out to suppliers before purchasing a tank.
* POSGCD demonstration tanks were purchased from these suppliers. 

Program Materials 

View presentation materials from completed workshops and programs, linked below.

Virtual Rainwater Harvesting 101  October 23, 2020

Landscape Management for Water Conservation (EarthKind) Program  May 22, 2020

Irrigation for Rainwater Harvesting Presentation • Feb 22, 2020

 Landscape & Irrigation Workshop • March 2, 2018

Rainwater Harvesting 101 • December 2, 2017 – Present

Earth-Kind Landscaping for Water Conservation • November 6, 2016

Rebate Program Presentation – Rainwater Harvesting 101 October 10, 2017

Irrigation Alternatives using Rainwater Harvesting

Rainwater Harvesting 101 – Rockdale Library



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