BGCD Rainwater Harvesting
Rainwater harvesting is the diversion and collection of rain to be stored for later use rather than allowing it to run off. This alternative water source can supply households and businesses with water for use in dry seasons, lessen the demands on municipal systems, and reduce pressure on aquifers during drought.
Uses for Rainwater Harvesting
- Landscaping
- Stormwater management
- Raingardens
- In-home use*
- Wildlife
- Fire protection
- Livestock
Planning your Collection System
Here are a few guides designed to help homeowners create their own system.
- Texas Rainwater Harvesting Manual by the Texas Water Development Board
- Rainwater Harvesting by Texas A&M AgriLife Extension Service
How much rainwater can you collect?
The following formula is used to determine the rain collection potential: 1″ of rain x 1 sq. ft. = 0.623 gallons
How big of a system do you need?
Below are several resources designed to help determine how much water you’ll want to save and what size harvesting system will best suit your needs.
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.
Additional Resources
Basics of Rainwater Harvesting Webpage – Texas A&M Agrilife Extension Service
Includes general information about uses for rainwater, system components, publications, and demonstration videos.
