Rebates · Texas · Post Oak Savannah GCD
Burleson & Milam County: Get Paid $1 a Gallon to Harvest Rain
If you live in or own land in Burleson or Milam County, the Post Oak Savannah Groundwater Conservation District pays $1 for every gallon of rainwater storage you install, up to $5,000 over your lifetime. Like its neighbor in Bastrop and Lee counties, it is a groundwater district, so homes on private wells can apply.
BlueSignal · October 7, 2026 · Facts checked against the program’s own page
What it pays
The rebate covers storage: tanks, gutters, the foundation and the overflow. At $1 a gallon, a 5,000-gallon system reaches the lifetime maximum.
| Storage you install | Rebate at $1 a gallon |
|---|---|
| 1,500 gal | Up to $1,500 |
| 3,000 gal | Up to $3,000 |
| 5,000 gal or more | Up to $5,000 (lifetime maximum) |
How to get it
- Take an approved Rainwater Harvesting 101 course. The district office (512-455-9900) can tell you when the next one runs.
- Submit a site plan and get it approved before you buy anything.
- Install the system. Plumbing or electrical work is done by a licensed trade you hire.
- Pass the district inspection. The district then pays the rebate.
Approval comes before purchase. A tank bought before the district approves the site plan can cost you the rebate.
One application per household per 12 months.
How much rain you can catch here
Caldwell, in Burleson County, averages about 41 inches of rain a year and Cameron, in Milam County, about 39 (NOAA 1991–2020 normals). A 2,000 sq ft roof catches roughly 43,100 gallons a year at Caldwell and 40,900 at Cameron, after normal collection losses.
Run your own roof through the tank calculator.
Bastrop or Lee County?
The Lost Pines Groundwater Conservation District runs the same $1-a-gallon program there. Read the Lost Pines guide.
Questions
Who can apply for the Post Oak Savannah rainwater rebate?
Residents and landowners in the Post Oak Savannah Groundwater Conservation District, which covers Burleson and Milam counties. The district decides each application.
How much does it pay?
$1 per gallon of storage capacity, up to $5,000 over your lifetime.
Do I have to take a class?
Yes. An approved Rainwater Harvesting 101 course is required.