Ind. Code § 14-25-2-7

Sec. 7. Except as provided in section 8 of this chapter, a contract for the sale of water on a unit pricing basis that was entered into under this chapter before July 1, 1991, is binding upon the commission. However, notwithstanding the terms of the contract, the rate of compensation for water sold under the contract on a unit pricing basis is thirty-three dollars ($33) per one million (1,000,000) gallons of water.