Guardian Pipeline, L.L.C.

Original Volume No. 1

Effective Date: 08/01/2010, Docket: RP10-926-000, Status: Effective

Fourth Revised Sheet No. 52 Fourth Revised Sheet No. 52

Superseding: Third Revised Sheet No. 52

RATE SCHEDULE IT-1 (Continued)

INTERRUPTIBLE TRANSPORTATION SERVICE

effective Rate Schedule IT-1 Service Agreement. Unless

Transporter and Shipper otherwise agree in writing, the

applicable rate for service under this Rate Schedule shall

be the maximum rate shown on the currently effective

Statement of Rates of Transporter's Tariff.

5.2 Service hereunder shall be subject to the following

charges:

(a) A usage charge equal to the product of the applicable

maximum Rate Schedule IT-1 Usage Rate shown on the

currently effective Statement of Rates of

Transporter's Tariff, or such other usage rate agreed

to by Shipper and Transporter pursuant to Section 26.1

or Section 26.2 of the GT&C, and the quantity of

Natural Gas delivered by Transporter to Shipper or for

Shipper's account on each Day in the Month;

(b) Incidental charges necessary to recoup regulatory

filing fees or similar fees incurred by Transporter in

rendering service under this Rate Schedule;

quantities, if any; and

(d) Any other applicable surcharges, penalties, or other

charges due to Transporter under the terms of this

Rate Schedule, Shipper's Rate Schedule IT-1 Service

Agreement, and the GT&C.

6. AUTHORIZED OVERRUN

On any Day, Shipper may elect, with the prior approval of

Transporter, to separately nominate quantities in excess of its

MDQ. Scheduled Quantities in excess of Shipper's total MDQ shall

be deemed to be Authorized Overrun. Unless otherwise specifically

agreed to by Transporter on a not unduly discriminatory basis, the

rate for daily Authorized Overrun quantities shall be the Rate

Schedule IT-1 Maximum Daily Overrun Rate, as set forth on the

Statement of Rates and shall be applied only to those quantities

in excess of Shipper's MDQ.