Subject to the following provisos, effective with gas bills rendered on and after thirty (30) days from final date of passage of this article (June 6, 1988), the maximum general service rate for sales of natural gas rendered to residential and commercial consumers within the city limits by Lone Star Gas Company, a division of ENSERCH Corporation, a Texas corporation, its successors and assigns, is hereby fixed and determined as set forth in item A, in the attachment maintained on file in the office of the city secretary, which is incorporated herein. This section approves the elimination of the Rate Schedule for Public Free Schools-N and placement of those customers receiving said rate on the commercial rate set forth in item A in the attachment maintained on file in the office of the city secretary.
(1) 
Proviso No. 1: If this article is finally passed and approved before the effective date stated in the statement of intent the new rates shall be effective with gas bills rendered on and after thirty (30) days from the final date of passage of this article for the good cause of reducing regulatory lag.
(2) 
Proviso No. 2: If this article is finally passed and approved after a period of suspension, the new rates shall be billable immediately in order to reduce regulatory lag. This provision is an exercise of the regulatory authority’s discretion to establish the effective date of rates at any time after jurisdiction attached, and its authority pursuant to state law to establish rates for any period of suspension.
(1996 Code, sec. 11.601)
The residential and commercial rates set forth above shall be adjusted upward or downward from base of $3.5847 per Mcf by a gas cost adjustment factor expressed as an amount per thousand (1,000) feet (Mcf) of natural gas for changes in the intercompany city gate rate charged as authorized by the state railroad commission or other regulatory body having jurisdiction for gas delivered to the DeSoto distribution system, according to item B, in the attachment maintained on file in the office of the city secretary, which is incorporated herein.
(1996 Code, sec. 11.602)
Company shall also receive tax adjustments according to item C, in the attachment maintained on file in the office of the city secretary, which is incorporated herein.
(1996 Code, sec. 11.603)
In addition to the aforesaid rates, company shall have the right to collect such reasonable charges as are necessary to conduct its business and to carry out is reasonable rules and regulations in effect. The charges set forth in items D and E, in the attachment maintained on file in the office of the city secretary, which is incorporated herein, are approved. Services for which no charge is set out may be performed and charged for by company at a level established by the normal forces of competition.
(1996 Code, sec. 11.604)
In addition to the aforesaid rates, company is authorized to recover the current and any unrecovered prior rate case expense through a surcharge designed for a six-month nominal recovery period. The surcharge per Mcf will be calculated by dividing the rate case expense to be recovered by one-half of the adjusted annual sales volume to residential and commercial customers. The company will provide monthly status reports to account for the collections.
(1996 Code, sec. 11.605)
The rates set forth in this article may be changed and amended by either the city or company in the manner provided by law. Service hereunder is subject to the orders of regulatory bodies having jurisdiction, and to the company’s rules and regulations currently on file in the company’s office.
(1996 Code, sec. 11.606)