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RAINWATER HARVESTING PROGRAMS

Rainwater harvesting involves the capture, diversion, and storage of rainwater for later use. It’s a water conservation method an alternative water source and a water conservation method that can reduce the pressure on aquifer systems by reducing pumping needs.

Rainwater Harvesting 101 (Caldwell) | Thurs. June 5, 2025 | 10:00 AM – 12:30 PM | Register here.

Rainwater Harvesting 101 | Thurs. Sept. 18, 2025 | 10:00 AM – 12:30 PM | Register here.

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 will 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 Details & Qualifications
  • Applicants must reside or own land within the District (Burleson or Milam County).
  • Applicants must complete an approved Rainwater Harvesting 101 course to qualify.
  • Only one application per household can be filed within a 12 month period with a lifetime reimbursement maximum of $5,000.
  • 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.
  • District staff must approve site plans before the purchase of reimbursable rainwater equipment and will be inspected after installation.
  • Short-term financial assistance may be available for qualifying applicants, contact the office for details.
 
Contact Grants Coordinator:
Courtney Gentry
(512) 455-9900

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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.

Rainwater Tank Sources
POSGCD’s rainwater harvesting tanks uses for demonstrations were purchased from these suppliers. 

 Program Materials

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

  • Programs & Education

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    CONTACT

    POSGCD is located in Milano, Texas on East Avenue C. Please feel free to drop by in person or contact us by email or phone.

    Hours:
    Monday – Friday
    8:00 a.m. – 4:00 p.m.
    Address: 310 East Avenue C
    Milano, Texas 76556

    Phone: 512.455.9900
    email: [email protected]

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