Rockies Express Pipeline LLC (Entrega)

Second Revised Volume No. 1

Effective Date: 09/01/2007, Docket: CP06-354-002, Status: Effective

Original Sheet No. 235 Original Sheet No. 235 : Effective

GENERAL TERMS AND CONDITIONS

20. QUALITY OF GAS (Contd.)

20.3 TOXIC AND HAZARDOUS SUBSTANCES

Shipper agrees to supply or cause its designee to supply to

Transporter upon demand, at any time and from time-to-time, a

sample of liquids removed from the Gas stream at any Receipt

Point, whether removed by a coalescer or otherwise, for analysis

at a laboratory of Transporter's choosing. If at any time PCBs or

any other toxic substances or chemicals that Transporter deems

hazardous and/or in any way unsafe for transportation are found in

the liquid samples supplied to Transporter by Shipper, Transporter

may in its sole discretion immediately cease the receipt of such

Gas and any associated liquids through its facilities. Upon proof

that such toxic or hazardous substances are no longer present at

levels deemed unsafe by Transporter, Transporter shall restore

service to Shipper at the affected Receipt Point.

20.4 ACCEPTANCE OF NON-CONFORMING GAS

A. Waiver of Quality Specifications. Transporter, in its

reasonable discretion and judgment, may waive, on a non-

discriminatory basis, the Gas quality specifications at any

receipt point to accept Gas that does not conform to the

quality specifications set forth in this section, if

Transporter determines that such acceptance will not

interfere with Transporter's ability to: (1) maintain

prudent and safe operation of part or all of Transporter's

pipeline System, (2) ensure that such Gas does not adversely

affect Transporter's ability to provide service to others,

and (3) ensure that such Gas does not adversely affect

Transporter's ability to tender Gas for delivery to a

downstream pipeline or end-user.