Southwest Gas Storage Company

Original Volume No. 1

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Effective Date: 01/20/1991, Docket: CP90-1014-002, Status: Effective

Original Sheet No. 69 Original Sheet No. 69 : Superseded

RATE SCHEDULE FSS (Continued)

FIRM STORAGE SERVICE

6.9 Curtailment and Interruption

Seller shall have the right to curtail, interrupt or

discontinue service in whole or in part on its system from

time to time and at any time, under the following conditions

and in the following manner:

(a) Operating or Remedial Curtailment or Interruption may

be ordered by Seller at any time if in Seller's

judgment capacity or operating conditions so require or

it is desirable or necessary to make modifications,

repairs or operating changes, the conduct of which will

be affected thereby, upon such notice as is reasonable

under the circumstances and in the following order, to

the extent practicable: (1) interruptible storage

service shall be first curtailed, commencing with

service that at the time notice was given was being

charged at a rate that is less than the maximum rate of

Seller then in effect under this tariff in sequence

starting with the rate least proximate to the maximum

rate and then with service which was initially provided

most proximate to the date notice is given by the

Seller of the particular curtailment or interruption;

next in order shall be all other interruptible storage

service in sequence starting with service which was

initially provided most proximate to the date notice is

given by Seller of the particular curtailment or

interruption. In the event Buyer is receiving

service at less than the applicable maximum rate and

Seller determines that interruption or curtailment of

service is required, Seller shall notify Buyer that

Buyer will be required to pay the applicable maximum

rate in order to avoid interruption or curtailment of

service to the extent that any interruptible service

is available as determined by Seller. Buyer's

election to pay the applicable maximum rate shall be

a one-time election effective during such periods of

interruption or curtailment regardless of duration.

Buyer's election shall be made at the time Seller and

Buyer agree to such discounted rate. (2) Firm

storage service shall be curtailed last on a pro-rata

basis. Such proration shall be based on Seller's

maximum firm contractual obligations to provide firm

service.