Tex. Water Code § 53.015: DEPOSIT.

The person who presents the petition shall at the same time pay a deposit of $100 to the county clerk. The clerk shall pay out the deposit on vouchers approved by the county judge for all expenses necessary for the hearing and the election for the creation of the district. After the election, the clerk shall return any portion of the deposit which is left to the petitioners or their attorney.

Acts 1971, 62nd Leg., p. 397, ch. 58, Sec. 1, eff. Aug. 30, 1971.