NOISE LAWS

NOISE LAWS

PHOTO: INGAA

FERC: Appalachian Gateway Project 135 FERC 61,239

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June 16, 2011 - Dominion Transmission, Inc - Docket No. CP10-448-000

Edited by Lauren Ragland

80. 
Don Tappan requests clarification of the federal noise requirements applicable to the proposed Morrison Junction Station and an existing Payne compressor facility. 

We are not aware of West Virginia state or local regulations that apply specifically to noise from natural gas compressor stations.

81. 
The proposed Morrison Junction Station is expected to result in a small increase in noise at noise sensitive areas (NSAs). Page 2-122, Table 2.8.2-3 of the EA shows that he predicted noise increase due to this compressor station will be between 0.1 and 3.9 decibels. 

We impose a strict 55 day-night averaged A-weighted decibels (55 dBA Ldn) criterion on new facilities and modifications to existing facilities. 

We impose Environmental Condition No. 21, which states that the Morrison Station shall not result in noise impacts at the NSAs that exceed our criterion.

82. 
The ambient noise survey prepared by Dominion for the Morrison Junction Station was filed by Dominion on June 1, 2010, and is located in Appendix 9-I of Resource Report 9 in the Environmental Report Exhibit F-1. 

Within this report are the locations where Dominion measured ambient noise levels. We do not specify the exact locations hat the acoustical survey must take measurements, however it is typical to measure at the nearest point to the NSA that is practicable. 

We will review the post-construction noise survey and determine if it is acceptable. If we deem it insufficient, we will require additional information from Dominion. This will ensure that the new station will not exceed the specified noise levels.