Image Source: https://agrilife.org/gift/mid-scale-green-infrastructure/
Regulations
- MS4: TCEQ MS4 Permits
- Construction Stormwater: TCEQ Construction Stormwater
- Industrial Stormwater: TCEQ Industrial Stormwater MSGP
Funding Resources
Clean Water State Revolving Fund
For: Wastewater treatment, stormwater management, and water reuse projects
Administered By: Texas Water Development Board
Eligibility: Cities, counties, water districts, and river authorities
Funding Type: Loans
Max Funding Level: $44,000,000
Flood Infrastructure Fund (FIF)
For: Drainage, flood mitigation, and flood control planning and implementation
Administered By: Texas Water Development Board
Eligibility: Political subdivisions (cities, counties, districts)
Funding Type: Grants and Loans
Max Funding Level: None Stated
Border Environment Infrastructure Fund
For: Implementation of high-priority municipal drinking water and wastewater infrastructure projects
Administered By: North American Development Bank
Eligibility: Public entities within 100km (62 miles) of the U.S.-Mexico border
Funding Type: Grants
Max Funding Level: None Stated
Texas Water Development Fund
For: Construction of water supply, wastewater, and flood control projects
Administered By: Texas Water Development Board
Eligibility: Political subdivisions and non-profit water supply corporations
Funding Type: Loans
Max Funding Level: None Stated
The Meadows Foundation Grants
For: Environmental conservation, water resource protection, and community programs
Administered By: The Meadows Foundation
Eligibility: 501(c)(3) non-profit organizations and public entities in Texas
Funding Type: Grants
Max Funding Level: None Stated
Residential Rebate Program
For: Rainwater harvesting system installation
Administered By: San Antonio Water System
Eligibility: SAWS residential customers
Funding Type: Rebates & Coupons
Max Funding Level: $2,000
Austin Water Business Water Conservation Programs
For: Commercial water efficiency upgrades and equipment retrofits
Administered By: Austin Water
Eligibility: Commercial, multi-family, and school customers of Austin Water
Funding Type: Rebates
Max Funding Level: $5,000
Sustainable Grants and Grant Writers
For: Water equity, conservation policy, and sustainable water management
Administered By: Cynthia and George Mitchell Foundation
Eligibility: Non-profit organizations and academic institutions
Funding Type: Grants
Max Funding Level: None Stated
Jacob and Terese Hershey Grants
For: Conservation of natural areas, wildlife, and parks
Administered By: Jacob and Terese Hershey Foundation
Eligibility: 501(c)(3) non-profit organizations (primarily in Texas)
Funding Type: Grants
Max Funding Level: None Stated
Shield-Ayres Foundation Grants
For: Environmental conservation and social services
Administered By: Shield-Ayres Foundation
Eligibility: 501(c)(3) non-profit organizations
Funding Type: Grants
Max Funding Level: None Stated
Discounted Rain Barrels Program
For: Promotion of rainwater harvesting via bulk-priced equipment
Administered By: The City of Round Rock Texas
Eligibility: Round Rock residents and water customers
Funding Type: Discounts
Max Funding Level: N/A
Green Workforce Jobs Grant Program
For: Environmental workforce development and NOAA-related conservation training
Administered By: EarthShare Texas
Eligibility: Non-profit organizations and community groups
Funding Type: Grants
Max Funding Level: $40,000
Nonpoint Source Program Grant
For: Projects that prevent or reduce nonpoint-source water pollution from urban and other nonagricultural runoff sources, including watershed implementation, education, monitoring, and best-management practices.
Administered By: Texas Commission on Environmental Quality, with agricultural and silvicultural Section 319 funding administered separately by the Texas State Soil and Water Conservation Board.
Eligibility: Texas nonprofits, federal agencies, state agencies, political subdivisions, cities, counties, school districts, public universities, and special districts.
Funding Type: Reimbursement grants
Max Funding Level: No per-project maximum is stated. TCEQ reimburses up to 60% of selected project costs; applicants must provide the remaining 40% as nonfederal match, which can include allowable in-kind volunteer or partner contributions. The FY 2027 request-for-grant-applications period is closed; the next solicitation is expected in summer 2027.
Click here for more information
Rainwater Harvesting Rebate Program
For: Residential or landowner-installed rainwater-harvesting systems that collect rainfall for irrigation, landscaping, livestock, or other eligible nonpotable uses.
Administered By: Lost Pines Groundwater Conservation District
Eligibility: Owners of property within Bastrop or Lee counties. Applicants must attend an approved Rainwater Harvesting 101 workshop, apply within 12 months of attending, receive District approval of site plans before installation, and pass a post-installation inspection.
Funding Type: Rebates
Max Funding Level: $1 per gallon of installed rainwater-storage capacity, up to $5,000. The system must be approved before tanks or barrels are installed; retroactive installations do not qualify.
Click here for more information
H2ome Improvement: Rain Barrel Rebate
For: Residential installation of qualifying rain barrels that conserve municipal drinking water by capturing rainfall for outdoor use.
Administered By: City of Allen
Eligibility: Owner-occupied residences with a City of Allen water-utility account in good standing. Commercial and tenant requests are ineligible. Applications generally require receipts and must be submitted within the City’s stated post-purchase period.
Funding Type: Rebates
Max Funding Level: Up to $25 per qualifying rain barrel, with a lifetime limit of two rain-barrel rebates per household. Across all City of Allen water-conservation rebates, an applicant may receive up to $500 in a fiscal year.
Click here for more information
Water Conservation Rebates and Programs
For: Residential and commercial water-conservation upgrades, which may include rainwater harvesting, irrigation assessments, smart controllers, rain barrels, and other approved water-efficiency measures.
Administered By: City of Georgetown
Eligibility: City of Georgetown water customers in good standing. Applicants are generally limited to one rebate of each type per fiscal year and must meet the requirements for the specific practice or equipment.
Funding Type: Rebates
Max Funding Level: Residential customers can receive up to $5,000 in combined rebates; commercial customers can receive up to $8,000 per year. The FY 2026 program accepted eligible work performed on or after October 1, 2025 through September 15, 2026, meaning that cycle has now ended; verify the FY 2027 terms before calling the program open.
Click here for more information
New Braunfels Utilities Rebate Program
For: Water conservation, irrigation efficiency, rainwater harvesting, energy-efficiency, and solar-related improvements for NBU customers.
Administered By: New Braunfels Utilities
Eligibility: NBU customers meeting the requirements for the individual rebate category; supporting documents and proof of purchase or installation are required.
Funding Type: Rebates
Max Funding Level: Up to $2,500 for rainwater-harvesting systems and other qualifying high-value rebate categories. Exact rebate amounts, equipment requirements, and available funding differ by program.
Click here for more information
Rainwater Harvesting Grants and Rebates
For: Rainwater-harvesting systems installed in public spaces and private residences, supporting outdoor use, landscaping, gardens, and water conservation.
Administered By: Prairielands Groundwater Conservation District
Eligibility: Applicants must reside or own land, and install the system, within Ellis, Hill, Johnson, or Somervell counties. The household rebate is for private systems; the separate grant program supports larger public-facing installations.
Funding Type: Grants, rebates, and cost-share assistance
Max Funding Level: Household rebates equal $1 per gallon of installed storage, capped at $500 per household. The public-space grant program may provide up to 85% cost share for approved projects, subject to available funds. Household applications, supporting documents, and completed systems must be received by December 1.
Click here for more information
Conservation Rebates
For: Water-efficiency improvements, including rainwater storage, irrigation upgrades, smart irrigation equipment, turf conversion, and efficient indoor fixtures.
Administered By: City of Round Rock
Eligibility: Direct City of Round Rock water customers in good standing. Municipal Utility District customers are not eligible for the rainwater-collection rebate.
Funding Type: Rebates
Max Funding Level: Current rainwater-storage rebates pay $0.50 per gallon, with a $50 minimum rebate, meaning installed storage must total at least 100 gallons. Earlier program materials list a maximum annual rebate of $500 for residential customers and $800 for commercial properties; the applicant should verify the current program form because individual rainwater guidelines list a $600 annual cap for eligible rainwater components.
Click here for more information
Texas Resilient Landscapes Initiative
For: Reforestation and forest/woodland recovery after natural-disaster or weather-related tree loss, including eligible site preparation, planting, and restoration practices.
Administered By: Texas A&M Forest Service
Eligibility: Nonfederal, nonindustrial forest or woodland landowners in Texas with 10 to 150 acres of qualifying project area and tree loss from a natural disaster or weather extreme within the prior 10 years. Applicants need a written stewardship plan before reimbursement.
Funding Type: Cost-share reimbursement
Max Funding Level: Up to $80,000 per landowner per year. The prior application period closed January 23, 2026; another round may be announced in fall 2026, subject to funding availability.
Click here for more information
Buffer Lands Incentive Program
For: Conservation easements and associated costs that permanently protect priority private lands, habitat, working lands, and ecological resources.
Administered By: Texas Parks and Wildlife Foundation
Eligibility: Texas private landowners proposing eligible conservation easements. Applicants are encouraged to hold a preapplication conversation with the Foundation before submitting materials.
Funding Type: Grants
Max Funding Level: Up to $75,000 per project to help defray the costs of placing priority land under a conservation easement. Applications are accepted and reviewed on a rolling basis.
Click here for more information
Drinking Water State Revolving Fund
For: Planning, acquisition, design, and construction of drinking-water infrastructure, including drinking-water supply, treatment, distribution, storage, source-water protection, and projects needed for regulatory compliance.
Administered By: Texas Water Development Board
Eligibility: Publicly or privately owned community water systems, nonprofit water-supply corporations, and nonprofit noncommunity public-water systems.
Funding Type: Low-interest loans, with potential additional subsidy for disadvantaged communities, green projects, very small systems, and urgent-need projects.
Max Funding Level: Varies with the Intended Use Plan, available funds, project priority, and borrower creditworthiness; no single statewide maximum is stated. Funding is available year-round, but the annual solicitation opens in December and closes in March for inclusion in the initial priority list.
Click here for more information
Loans for Infrastructure Projects
For: Environmental and public infrastructure projects, including drinking-water treatment and distribution, wastewater collection and treatment, stormwater management, solid waste, clean energy, and air-quality improvements.
Administered By: North American Development Bank
Eligibility: Public or private project sponsors with legal authority to develop and operate the project, located within the U.S.–Mexico border region. In Texas, eligible projects generally must lie within 100 kilometers, approximately 62 miles, north of the international border. Projects must meet NADB technical, environmental, financial, and regulatory criteria.
Funding Type: Loans
Max Funding Level: No fixed loan ceiling is stated. NADB generally finances up to 85% of eligible project costs, with the remaining funding provided through local equity, grants, co-financing, or subordinated debt.
Click here for more information
State Participation Program
For: Regional water, wastewater, or flood-control facilities that require capacity beyond current demand and cannot reasonably be financed by a local sponsor at the optimal regional scale.
Administered By: Texas Water Development Board
Eligibility: Texas political subdivisions and water-supply corporations sponsoring an eligible regional water or wastewater project. Water-supply projects must be included in an approved State Water Plan or Regional Water Plan.
Funding Type: Temporary state ownership interest and deferred-interest obligation, rather than a conventional grant.
Max Funding Level: Up to 80% of costs for new water-supply and State Water Plan projects, and up to 50% for other qualifying projects; state participation is limited to the excess-capacity portion. The program currently has no available funding until new legislative appropriations are received. Abridged or complete applications are normally due February 1 and August 1.
Click here for more information
Rebate Programs
For: Residential water- and energy-conservation projects, including irrigation upgrades, waterwise landscaping, rain gardens or rainscapes, landscape survival tools, pool covers, water timers, and rainwater-harvesting systems.
Administered By: City of Sunset Valley
Eligibility: City of Sunset Valley utility customers who own the property or hold the utility account. Larger rainwater systems require preapproval and inspections; applications are funded first come, first served.
Funding Type: Rebates
Max Funding Level: Up to $10,000 per site for a rainwater-harvesting system. For qualifying systems, the City generally reimburses 75% of materials and labor, with the first $1,000 or $2,000 potentially covered at 100% depending on system type and capacity.
Click here for more information