PSC 134.14(1)(1) Whenever a meter is found to have a weighted average error of more than 2% fast as tested in the manner specified in s. PSC 134.28, a recalculation of bills for service shall be made for the period of inaccuracy assuming an inaccuracy equal to the weighted average error. Weighted average error refers to 80% of the open rate plus 20% of the check rate. The recalculation shall be made on the basis that the service meter should be 100% accurate.

PSC 134.14(2)(2) If the period of inaccuracy cannot be determined, it shall be assumed that the full amount of inaccuracy existed during the last half of the period since the previous test was made on the meter; however, the period of accuracy shall not exceed one-half the required test period.

PSC 134.14 NoteNote: If the meter test period is 15 years and the meter had been in service for 16 years, the period of accuracy shall be 7½ years, and the period of inaccuracy shall be 8½ years.

PSC 134.14(3)(3) If the average gas bill of a customer does not exceed $10 per month over the refund period the monthly consumption of which the refund is calculated may be averaged.

PSC 134.14(4)(4) If the recalculated bills indicate that more than $1 is due an existing customer or $2 is due a person no longer a customer of the utility, the full amount of the calculated difference between the amount paid and the recalculated amount shall be refunded to the customer. The refund to an existing customer shall be a credit to the customer’s current bill. If the amount of the credit is greater than the current bill, the amount in excess of the current bill shall, at the discretion of the customer, be made in cash or as credit on future bills. If a refund is due a person no longer a customer of the utility, a notice shall be mailed to the last known address, and the utility shall upon request made within 3 months thereafter refund the amount due.

PSC 134.14(5)(a)(a) Whenever a meter with a rated capacity of 400 cubic feet per hour (CFH) or more is found to have a weighted average error of more than 2% slow, the utility shall bill the customer for the amount the test indicates has been undercharged for the period of inaccuracy, which period shall not exceed the last 2 years the meter was in service unless otherwise ordered by the commission after investigation. No back billing for an inaccurate meter will be sanctioned for the following:

PSC 134.14(5)(a)1.1. The customer has called to the company’s attention his or her doubts as to the meter’s accuracy and the company has failed within a reasonable time to check it.

PSC 134.14(6)(6) A classified record shall be kept of the number and amount of refunds and charges made because of inaccurate meters, misapplication of rates, and erroneous billing. A summary of the record for the previous calendar year shall be submitted to the commission by April 1 of each year.

PSC 134.14 HistoryHistory: Cr. Register, 1-2-56; r. and recr. Register, February, 1959, No. 38, eff. 3-1-59; am. (1), (2) and (4), renum. (5) to be (5) (a) and am., cr. (5) (b), Register, November, 1989, No. 407, eff. 12-1-89.

PSC 134.15PSC 134.15 Employees authorized to enter customers’ premises. The utility shall keep a record of employees authorized pursuant to s. 196.171, Stats., to enter customers’ premises.

PSC 134.16PSC 134.16 Maps and diagrams. Each utility shall have maps, records, diagrams, and drawings showing the location of its property, in sufficient detail so that the adequacy of service to existing customers may be checked and facilities located.

PSC 134.17PSC 134.17 Complaints. Each utility shall investigate and keep a record of complaints received by it from its customers in regard to safety, service, or rates, and the operation of its system. The record shall show the name and address of the complainant, the date and nature of the complaint, and its disposition and the date thereof. A summary of this record for the previous calendar year shall be sent to the commission by April 1 of each year. Each utility also shall document all contacts and actions relative to deferred payment arrangements and disputes.

PSC 134.18(1)(1) Each utility shall keep a record of all interruptions to service affecting an entire distribution system of any urban area or an important division of a community. The record shall show the date and time of interruption, the cause, the approximate number of customers affected, and the date and time of restoring service.

PSC 134.18(2)(2) Each utility shall keep a record of all failures and notifications of difficulty with transmitted gas supply affecting each gate station. The record shall show the date and time of failure or notification, the date and time of resumption of normal supply, the operation of standby equipment including amount of gas produced, the number of customers whose service was interrupted and the maximum and minimum gas supply pressure during the period of difficulty.