Gas Transmission Northwest Corporation
FERC Gas Tariff
Third Revised Volume No. 1-A

Nineteenth Revised Sheet No. 4
Superseding
Eighteenth Revised Sheet No. 4

                 STATEMENT OF EFFECTIVE RATES AND CHARGES FOR
                         TRANSPORTATION OF NATURAL GAS 
                        Rate Schedules FTS-1 and LFS-1

                    RESERVATION                  
             DAILY              DAILY
            MILEAGE (a)      NON-MILEAGE (b)     DELIVERY (c)       FUEL (d)
            (Dth-MILE)           (Dth)          (Dth-MILE)          (Dth-MILE)

        MAXIMUM   MINIMUM  MAXIMUM  MINIMUM  MAXIMUM  MINIMUM  MAXIMUM MINIMUM

 BASE   0.000463  0.000000 0.036632 0.000000 0.000016 0.000016 0.0050% 0.0000%

 STF(e)    (e)    0.000000    (e)   0.000000 0.000016 0.000016 0.0050% 0.0000%

 EXTENSION CHARGES
 
     MEDFORD

 E-1(f) 0.003290  0.000000 0.005498 0.000000 0.000026 0.000026   ---     ---

 E-2(g)(l) 0.008346 0.000000  ---     ---    0.000000 0.000000   ---     ---
  (WWP)

 E-2(h)(l) 0.002972 0.000000  ---     ---    0.000000 0.000000   ---     ---
  (Diamond 1)

 E-2(h)(l) 0.001166 0.000000  ---     ---    0.000000 0.000000   ---     ---
 (Diamond 2)


     COYOTE SPRINGS

 E-3(i) 0.001412 0.000000 0.001420 0.000000   0.000000  0.000000  ---     ---


 OVERRUN CHARGE(j)
          ---      ---        ---      ---       ---     ---     ---     ---

 SURCHARGES

 ACA (k)  ---      ---        ---      ---   0.001900  0.001900  ---     ---
                                                    
 

Issued by: John A. Roscher, Director of Rates and Tariffs
Issued on: March 31, 2010                     Effective on: April 30, 2010