Rain barrel and cistern rebates

The largest programs

• OpenTexas

  Sunset Valley Rainwater Harvesting System Rebate

  City of Sunset Valley

  75% of materials and labor, with the first $1,000 (500 gal or less, no pump, Villas) or first $2,000 (larger non-pressurized or pressurized) covered at 100%; up to $10,000 per site

  Up to $10,000 per household

• OpenTexas

  Austin Water Rainwater Harvesting Rebate (rain barrel or cistern)

  Austin Water

  Up to $5,000 based on storage capacity (older terms: $0.50/gal non-pressurized, $1.00/gal pressurized, up to 50% of cost)

  Up to $5,000 per household

• OpenPlan requiredTexas

  San Marcos Rainwater Harvesting Rebate

  City of San Marcos

  $0.50 per gallon of storage (non-pressurized) or $1.00 per gallon (pressurized), never more than 50% of purchase price; max $5,000 for standard 5/8 x 3/4 inch meters ($10,000 for 1 inch, $15,000 for 1.5 inch, $20,000 for 2 inch and larger)

  Up to $5,000 per household

• Status not postedPlan requiredTexas

  Lost Pines GCD Rainwater Harvesting Rebate

  Lost Pines Groundwater Conservation District

  $1 per gallon of storage capacity, up to $5,000

  Up to $5,000 per household

• Status not postedPlan requiredTexas

  Post Oak Savannah GCD Rainwater Harvesting Rebate

  Post Oak Savannah Groundwater Conservation District

  Up to $1.00 per gallon of storage; eligible costs include tanks, gutters, foundation, overflow

  Up to $5,000 per household

• OpenCalifornia

  San Diego County Waterscape Rain-Saving Containers and Gutters

  County of San Diego Watershed Protection Program (Waterscape Rebate Program)

  Containers: $1.00 per sq ft of roof captured, up to $2,000. Gutters: $5 per linear foot up to $500. Upgrades: Volume +$0.25/sq ft (up to $500) and Full-Capture +$0.25/sq ft (up to $500); total up to $3,000. SoCal WaterSmart rebate ($35-$350 per container) is deducted from the County total. Older County rates of $30/barrel and $100/cistern appear in a July-Aug 2026 notice.

  Up to $3,000 per household

• OpenTexas

  NBU Rain Barrel or Cistern Rebate

  New Braunfels Utilities (NBU)

  Per-gallon rate not published on pages read; maximum $2,500

  Up to $2,500 per household

• OpenCalifornia

  Marin Water Rain Barrel and Cistern Rebate

  Marin Municipal Water District (Marin Water)

  $0.75 per gallon of storage, not more than system cost

  Up to $2,000 per household