70 ILCS 3720/0.02

Notwithstanding the terms of a water supply contract existing on the effective date of this amendatory Act of the 93rd General Assembly, all parties to a water supply contract with a county water commission, irrespective of whether such party is a charter member or subsequent entrant, shall pay rates equal to the rates paid by other parties to such water supply contract and shall not pay any additional fees, costs, or differentials as a condition of becoming a party to such water supply contract. Subsequent entrants to a water supply contract shall pay their pro-rata portion of the original capital costs less any rebates and the actual costs of connection to the water commission system.