Texas Water Supply and Infrastructure Grants (WSIG) Program

Texas Water Supply and Infrastructure Grants (WSIG) Program is sponsored by State of Texas. This program allocates state funding for public entities across Texas to fund water supply and water infrastructure projects. Applications for this one-time opportunity are due July 2026, and all funding must be committed and closed by August 1, 2027.

Water Supply and Infrastructure Grants | Texas Water Development Board Water Supply and Infrastructure Grants (WSIG) Application Period for Water Supply and Infrastructure Grants Now Open WSIG Frequently Asked Questions Applicants must use the WSIG-specific application materials listed below. NOTE: Traditional TWDB forms and templates do not apply to this opportunity.

Average Median Household Income (AMHI) Worksheet Environmental Affidavit (TWDB-0802) Water Rights Affidavit (TWDB-0208) Application Entity Signatory Authority and Delegation (TWDB-0201D) Other Required Attachments (see the application for more specifics) For additional information on WSIG project implementation, please see the following documents: Water Supply & Infrastructure Grant Supplemental Conditions and Instructions for Construction Services (TWDB-0553) Guidance for USACE Coordination (TWDB-0098) Agency Coordination Contact List with Instructions (TWDB-0099) House Bill 500, passed during the 89th Legislative Session, appropriated $1.

038 billion in funds for water supply and infrastructure projects to the Texas Water Development Board. This is a one-time opportunity for a limited number of Texas communities to receive grant funding to implement water supply/water infrastructure projects. Once this initial appropriation is provided to communities by August 31, 2027, the TWDB will no longer have these grant funds available to provide financial assistance.

HB 500 from the 89th Texas Legislative Session appropriated $1,038,000,000 from the general revenue fund to the TWDB but did not specify that the money was appropriated to a specific fund, which resulted as a deposit of the appropriated money into TWDB's general revenue fund. Additionally, the appropriation language did not provide authority for the TWDB to transfer that money into another TWDB fund or account.

Therefore, the money must be provided for the stated purposes directly from TWDB's general revenue fund and not through an existing financial assistance program. Further, the purpose for the appropriation was stated in the HB 500 legislation as "water infrastructure and supply projects and grants as determined by the board." As the language is specific to water infrastructure and supply, the plan excludes wastewater and flood projects.

Additionally, water supply corporations (WSCs) would not be eligible for funding as the Texas Constitution prohibits the grant of public funds (1) for private purposes and (2) to "individuals" when the grant is not provided for in pre-existing law. (Tex. Const.

, Art. III, §§ 51 and 44). Art.

III, § 51 can be met for all of TWDB's usual customers even when money is appropriated for general revenue grants that do not flow through an existing program, but Art. III, § 44 will prevent TWDB's private entity customers, such as WSCs and Investor-Owned Utilities, from receiving a general revenue grant.

Section 51's public purpose test is met by the typical projects funded by TWDB to typical governmental entities because (1) the grant is designed to accomplish a public purpose, not to benefit private parties; (2) TWDB will retain control over the funds to ensure the public purpose is accomplished and to protect the public's investment; and (3) the state receives a return benefit.

Section 44's prohibition on grants to individuals without preexisting law would prohibit the use of these funds to provide a grant to WSCs because they are considered "individuals" under the provisions and no preexisting law authorizes the grant of these funds to WSCs. TWDB's existing financial assistance programs are governed by statutes that clearly provide financial assistance to non-profit WSCs (see e.g., Tex. Water Code § 15.

001(5)). Section 44 would not prohibit general revenue grants to cities, counties, or other governmental entities because they are not "individuals" within the meaning of that section of the Constitution.

Additionally, the TWDB will provide this funding in the form of a 100 percent grant because HB 500 does not provide authorization for the TWDB to use the funding to leverage bonds; therefore, the appropriation does not create a benefit to providing the funding in the form of a loan. The Constitution generally prohibits all state debt, except as otherwise authorized by the Constitution (Tex. Const.

, Art. III, § 49). More specifically, the TWDB’s authority to issue bonds must be “authorized by constitutional amendment or a debt proposition” (Tex.

Const. , Art. III, § 49-c).

The TWDB’s authority to issue both revenue and general obligation bonds is specifically authorized in the Constitution. Constitutional provisions applicable to the TWDB can be found at Texas Constitution, Article III, §§ 49-c - 49-d-16. Each of those authorizations is specific to particular programs or accounts of the TWDB.

The Constitution and statute provide clear and prescriptive language on where bond proceeds may be deposited and transferred, and how money may be deposited and transferred to pay debt service on those bonds. The TWDB does not have any applicable language in the appropriation from HB 500, existing statute, or existing constitutional provisions to leverage this appropriation with bonds or use this appropriation to pay debt service.

Because these funds were deposited into the TWDB's general revenue fund, they may not be transferred into an existing account to be used to leverage additional funding through TWDB-issued bonds in an existing program. Without statutory direction otherwise, loan repayments must be deposited into the account from which they originated.

If loan repayments were deposited back into the general revenue fund, the TWDB would not have authority to then use those funds again without additional appropriation from the Texas Legislature and they would revert to the State Treasury.

From the TWDB's perspective, any loans provided from this funding would effectively be "grants that require repayment" and would lack the benefit of a revolving corpus to justify the extra level of financial review necessary to confirm a borrower's ability to repay a loan. Based on these circumstances, there would be no benefit to the State or the local entities receiving funding to provide this funding in the form of a loan.

Additionally, the language of HB 500 only speaks to grants, thereby not providing clear legal authority to require repayment. How to access these funds The deadline to submit a WSIG application is Thursday, July 30, at 11:59 p. m.

CST. The application materials are listed at the top of this page. Webinars are planned to support applicants in understanding the submission process.

Please use the links to view recordings, slides, and register for the webinars. Register for the June 4 webinar House Bill 500 - Water Supply and Infrastructure Grants (05/13/2026) To ensure accessibility for everyone, an ADA-compliant version of the recording will be available as soon as possible, and it will replace the existing recorded file.

Additional updates - including Frequently Asked Questions, other resources, and the notice to submit applications for this one-time grant opportunity - will be posted as they become available. To receive all announcements and updates related to the Water Supply and Infrastructure Grant opportunity, please register for the TWDB mailing list. House Bill 500 - Water Supply and Infrastructure Grants HB 500, Section 6.

02, 89th legislative session, text excerpt - Excerpt of language from HB 500 authorizing the TWDB to utilize these funds for water supply and infrastructure projects. Side by Side Financial Assistance Comparison - A quick reference to view three other financial assistance program requirements in comparison to the WSIG opportunity.

Financial Assistance Comparison Timeline - A quick reference to view the milestone dates and timeline of events for several TWDB financial assistance program and the WSIG opportunity. Requirements for Water Supply and Infrastructure Grants - requirements related to this funding opportunity. Water Supply and Infrastructure Grants- Project Prioritization Criteria - The rating criteria that will be used for this funding opportunity.

WSIG Frequently Asked Questions