[ exact phrase in "" • results by date ]

[ Google-powered • results by relevance ]


Add NWW headlines to your site (click here)

when your community is targeted

Get weekly updates

RSS feeds and more

Keep Wind Watch online and independent!

Donate via Stripe

Donate via Paypal

Selected Documents

All Documents

Research Links


Press Releases


Campaign Material

Photos & Graphics


Allied Groups

Wind Watch is a registered educational charity, founded in 2005.

News Watch Home

Sound from Scituate Wind turbine in compliance with MassDEP regs 

Credit:  Ruth Thompson | Scituate Mariner | Apr 1, 2020 | scituate.wickedlocal.com ~~

Based on sound level testing done last year for the Scituate Wind turbine, results indicate the turbine is in compliance with the Massachusetts Department of Environmental Protection Noise Policy.

During a remote meeting of the Board of Selectmen on March 24, Al Bangert, special projects director, presented a summary of the final report on the wind turbine sound level compliance testing.

After ongoing complaints by neighbors to the turbine, in May 2018 the Board of Selectmen awarded a $50,000 contract to Epsilon Associates to conduct wind turbine noise compliance tests, Bangert said.

“Epsilon worked with the MassDEP over the course of five months to establish an agreed upon ‘Sound Level Compliance Monitoring Protocol’ involving four Scituate locations and specific wind conditions,” Bangert said. “Final agreement with the DEP was reached Nov. 27, 2018.”

Epsilon began monitoring wind conditions and completed the first test on April 19, 2019.

“Sound level testing consists of measuring the ‘Lmax’ or maximum sound emitted by the turbine when running versus the ‘L90’ or lowest sound level with the turbine shutdown,” Bangert explained. “Sound is quantified using the logarithmic decibel scale as dBA.”

Epsilon completed all four of the evening noise tests between 1 and 4 a.m., generating 16 data sets incorporating several hundred direct measurements of ambient and turbine sound levels. Scituate Wind LLC cooperated with Epsilon throughout the overnight testing periods.

“The results of the testing program show that sound levels due to the wind turbine operating during wind conditions producing maximum power and during wind conditions identified by resident noise complaints comply with the MassDEP Noise Policy with the exception of one night at one location,” Bangert said.

Compliance requires that the difference in decibels between maximum sound levels with the turbine running versus the lowest ambient noise level be less than 10 dBA.

“In order to further understand the apparent non-compliance that occurred at 151 Driftway on July 31, 2019, Epsilon analyzed the L90 sound level differences between turbine on and turbine off,” Bangert said. “The property is adjacent to the turbine and the sewage treatment plant, and the turbine is more audible at this location than at the other three locations although the L90 levels – the lack of sound between the turbine whoosh – are only 1 to 3 dBA different.”

On July 31, however, the L90 difference jumped to 11 dBA suggesting that something else may have influenced the recorded sound levels besides the wind turbine on this evening.

Selectmen plan to hold further discussions on this issue when the meeting can be more open for public participation, Bangert said.

Source:  Ruth Thompson | Scituate Mariner | Apr 1, 2020 | scituate.wickedlocal.com

This article is the work of the source indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

The copyright of this article resides with the author or publisher indicated. As part of its noncommercial educational effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations. Send requests to excerpt, general inquiries, and comments via e-mail.

Wind Watch relies entirely
on User Contributions
   Donate via Stripe
(via Stripe)
Donate via Paypal
(via Paypal)


e-mail X FB LI M TG TS G Share

News Watch Home

Get the Facts
© National Wind Watch, Inc.
Use of copyrighted material adheres to Fair Use.
"Wind Watch" is a registered trademark.


Wind Watch on X Wind Watch on Facebook Wind Watch on Linked In

Wind Watch on Mastodon Wind Watch on Truth Social

Wind Watch on Gab Wind Watch on Bluesky