Texas Government Code - GOV'T § 1505.110. Operating Expenses as First Lien

(a) The reasonable costs of administering and operating and the reasonable expense of maintaining the project are a first lien against the revenue and income from the operation of the project, superior to the lien of any indenture or deed of trust on the project.

(b) From the revenue and income of the project, the municipality shall, monthly or more frequently if necessary:

(c) Revenue or income from a project may not be used except as provided by this section while an obligation related to the project remains outstanding.