*Iroquois Gas Transmission System, L.P.*

*FIRST REVISED VOLUME NO. 1*

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Effective Date: 10/01/2008, Docket: RP07-443-004, Status: Effective

**FOURTH REVISED SHEET NO. 70 **FOURTH REVISED SHEET NO. 70

Superseding: SUBSTITUTE THIRD REVISED SHEET NO. 70

9.3 Delivery Point Conforming Gas Quality Maximums.

The gas to be made available to or on behalf of Shipper at the

Delivery Point(s) on Transporter’s system, as measured at the

applicable monitoring point, shall not exceed any of the

following maximum average daily requirements unless Transporter

and Delivery Point operator that would be receiving such

non-conforming gas otherwise agree:

a) Heating Value – one thousand one hundred ten (1,110)

Btu’s per cubic foot; and

b) Wobbe Index – one thousand three hundred seventy

three (1,373) Btu’s per cubic foot through

12/31/2011; one thousand four hundred (1,400) Btu’s

per cubic foot on and after 1/1/2012; and

c) Cricondentherm Hydrocarbon Dew Point – fifteen (15)

degrees Fahrenheit; and

d) Non-methane Hydrocarbons (C2+) – eight and

one-quarter percent (8.25%) by volume through

12/31/2011; twelve percent (12%) by volume on and

after 1/1/2012: and

e) Heavy Hydrocarbons (C4+) – one and one half percent

(1.5%) by volume; and

f) Temperature – one hundred twenty (120) degrees

Fahrenheit; and

g) Sulfur – one and one quarter (1.25) grains

per one hundred cubic feet; and

h) Hydrogen Sulfide – one quarter (0.25) grain per one

hundred cubic feet; and

i) Oxygen – two-tenths of one percent (0.2%) by volume;

and

j) Carbon Dioxide – two percent (2.0%) by volume; and

k) Nitrogen and Oxygen – two and one-half percent (2.5%) by

volume of a combined total of nitrogen and oxygen

components through 12/31/2011; two and

three-quarters percent (2.75%) by volume of a

combined total of nitrogen and oxygen components

on and after 1/1/2012; and

l) Carbon Dioxide and Nitrogen – Not more than four

percent (4%) by volume of a combined total of carbon

dioxide and nitrogen components, and

m) Entrained Water – four (4) pounds per million cubic

feet, at a pressure base of fourteen and

seventy-three hundredths (14.73) pounds per square

inch and a temperature of sixty (60) degrees

Fahrenheit as determined by dew-point apparatus

approved by the National Institute of Standards and

Technology or such other apparatus as may be

mutually agreed upon; and

n) Polychlorinated Biphenyl (PCB) - one-tenth (0.1)

part PCB per billion parts natural gas.

The limitations set forth above in this Section 9.3 shall each apply independently.