El Paso Natural Gas Company

Second Revised Volume No. 1A

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Effective Date: 04/01/2010, Docket: RP10-454-001, Status: Effective

Second Revised Sheet No. 305 Second Revised Sheet No. 305

Superseding: First Revised Sheet No. 305

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

11. SYSTEM OPERATIONAL PARAMETERS

11.1Strained and Critial Operating Condition Procedures (Continued)

(d) Shippers may rely on the operational flow data posted by Transporter

as to daily receipt and delivery quantities in taking corrective

actions to manage daily imbalances. If Shipper relied upon posted

flow data and Shipper took actions to address a daily imbalance

based upon such data, such reliance will not cause an SOC or COC

Daily Imbalance Charge to be assessed. Transporter will review the

accuracy of all daily imbalance quantities posted based on such

operational flow data. The SOC and COC Daily Imbalance Charge

quantity will be based on the lesser of the daily imbalance

calculated pursuant to that operational flow data or the actual

measured quantity as reported at the end of the Month.

(e) Transporter shall provide, as soon as available, SOC/COC

Information.

(i) Preliminary Notifications and Follow-up Reports. Transporter

will post on its EBB a Notice of SOC/COC containing the

following provisions:

(A) time and date of issuance;

(B) Gas Day and time that the SOC/COC is considered to be

effective;

(C) affected areas/parties;

(D) the applicable threshold level pursuant to Section

11.1(a)(viii), whether the problem is related to a Pack

or Draft of the system and the status of linepack (i.e.,

high linepack or low linepack) pursuant to Sections

11.1(a) and 11.1(b);

(E) status of the applicable operational variables described

above in Section 11.1(a) causing the SOC/COC;

(F) required actions to remedy the operational condition

necessitating the SOC/COC;

(G) any other terms Transporter may reasonably require to

ensure the effectiveness of the SOC/COC; and

(H) Threshold percentage for application of SOC or COC Daily

Imbalance Charges.