TGP Expansion for Columbia Gas & Holyoke

Tennessee Gas (Kinder Morgan) has proposed capacity expansion at its 261 Compressor station and 2 miles of new pipeline loop in Agawam MA. This proposal is to “provide reliability” to Holyoke and Columbia Gas (CMA) systems and to allow for new gas customers for Columbia Gas (CMA).

» Extended Environmental Notification Form filed with MEPA

The planned “Horsepower Replacement Program” is to remove two old compressor turbines and install one new one. This would result in an overall increase of 4,418 horsepower to the station, and an increase of up to 7.8 decibels in noise level to nearby dwellings. There doesn’t appear to be data provided on the difference in emissions between the compressor engines being removed and the one being installed.

Old Compressor Engines being removed:
1991-vintage Solar Centaur H
1965-vintage Solar Saturn T-1001

New Compressor Engine being installed:
Solar Taurus 70-10802S

Net increase in horsepower: 4,418 HP
Increase in noise levels:


2.1 miles of new 12″ pipeline loop, replacing an existing unused  6″ pipeline and looped to the active 10″ pipeline already in place. This would include a new pigging launcher at the compressor station site and a new receiver at the end of the loop approx. 2 miles to the north.


Air Quality Permit for existing station – Being updated and resubmitted for the 261 Upgrade Project.
EENF filed with MEPA, comment period deadline was Aug. 10, 2018

*more comprehensive list coming

MAP OF PROJECT – Compiled from EENF
(click on map to download high res PDF)