"Deafening." "Like a Jet Engine." "A Diesel Truck That Runs All The Time."
Spectra claims that this Compressor Station won't be a noise nuisance, but evidence from Compressor Stations around the country demonstrates otherwise. These facilities are noisy during normal operations, and deafening during the periodic blowdowns.
The operating "hum" of a 7,700 horsepower Compressor (plus the additional 10,900 horsepower Compressor to be added for Access Northeast) will be amplified as sound travels across the water and into North Weymouth and Quincy. Spectra claims it won't be above 55 decibels when measured at the edge of their property line, but a study of sound and vibration hasn't been done.
The promises made by Spectra during the proposal simply are not an accurate picture of the reality of Compressor Station noise, and their claims will not be enforced. The surrounding community will pay the price when it comes to their health, property values, and enjoyment of the outdoors.
Regulation of sound is ambiguous, and State DEP's continue to struggle with how to regulate and enforce. (Source)
What Do Compressor Stations Really Sound Like To Their Neighbors?
Youtube is full of videos of Compressor Stations and their true impacts on the surrounding environment.
Argument: this will be quieted by the building
Spectra argues that the sound of the Compressor will be muffled by the enclosed building. While this may damper the sounds of normal operations, it will do nothing to minimize the deafening blasts of a Blowdown, as the Blowdown separator is located outside of the building.
Enclosures around natural gas infrastructure also come with their own risks. As Pipeline & Gas Journal (an industry publication) has said: