Ill. Admin. Code tit. 83, § 600.350 – Meter Tests Requested by Customer

a) Each utility furnishing metered water service shall, without charge, test the accuracy of any meter upon request by the customer served by such meter, provided that the meter in question has not been tested by the utility or by the Commission within two years previous to such request. If the customer so desires, he or his representatives shall have the privilege of witnessing the test. A written report, giving the results of the test, shall be made to the customer.
b) When a meter which has been in service less than two years since its last test is found to be accurate within the limits specified in Section 600.310, the customer shall pay a fee to the utility not to exceed the following:
1. 1) 1 inch meter or smaller – $7.50
2. 2) 1½ inch or 2 inch meter – $15.00
c) Fees for testing meters not included above or so located that the cost will be out of proportion to the fee specified will be determined by the Commission upon receipt of a complete description of the case.