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RAINWATER HARVESTING PROGRAMS

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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.

Programs & Workshops

Slide program download from Edible Landscaping program

Feel free to reach out by phone  (512) 409-7028 or email  jwr@tamu.edu or Doug Box dbox@posgcd.org 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 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 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.
    1. District staff must approve site plans before the purchase of reimbursable rainwater equipment and will be inspected after installation.
    2. 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
* 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.

Virtual Earthkind Plants for Pollinators •
March 24, 2021
Slideshow Presentation

Landscape Management for Water Conservation (EarthKind) Program  • May 22, 2020
Slideshow Presentation
EarthKind Landscapes Website
AggieTurf Website
EarthKind Plant Selector Tool

Irrigation for Rainwater Harvesting Presentation • Feb 22, 2020
Irrigation for Rainwater Harvesting Presentation

Rainwater Harvesting Calculator

Rainwater Collection Calculator 

Click Here for Calculator

 Landscape & Irrigation Workshop • March 2, 2018
Post Oak Savannah Building Landscape – Native Plants List

Rainwater Harvesting 101 • December 2, 2017 – Present
Understanding Rainwater Harvesting Systems

Earth-Kind Landscaping for Water Conservation • November 6, 2016
EarthKind Landscape Presentation – Part One
EarthKind Landscape Presentation – Part Two

Rebate Program Presentation – Rainwater Harvesting 101 • October 10, 2017
POSGCD Rainwater Rebate Program Presentation

Irrigation Alternatives using Rainwater Harvesting
Irrigation Alternative for Rainwater Harvesting presentation

Rainwater Harvesting 101 – Rockdale Library
Rockdale Library Rainwater Harvesting 101 Presentatio

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