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Sustainable Lexington Committee Minutes of September 26, 2023 <br />unacceptable levels of noise at construction sites in town. If these limited revisions to the <br />current bylaw (i.e., the ledge work definition and holiday schedule) cannot be completed <br />in time for Special Town Meeting, SLC agrees the article should be indefinitely <br />postponed/removed from the warrant. SLC believes that other proposed changes to the <br />bylaw create new and serious problems. By defining "Excessive or Unwarranted Noise" <br />as "Any noise that results in noise pollution or noise injury", the proposed bylaw sets a <br />standard of 80 dBA for residential and 85 dBA for other zones, ignoring the fact that <br />these are badly outdated standards. Using these standards will cause harm to public <br />health. They need to be lower. These standards are drawn from occupational health but <br />we need environmental noise standards. In 1974, when EPA had an Office of Noise <br />Abatement and Control, (ONAC), ONAC found that 70 decibels was the exposure below <br />which it assumed measurable hearing loss would not occur, and levels of 55 and lower <br />were necessary to prevent #activity interference and annoyanceā€¯. Sleep, work, education, <br />concentration, health in general, and property values are all impacted - and sometimes <br />severely - by a lack of clarity concerning harmful levels. The proposed definition would <br />not prevent excessively high levels. Other neighboring towns have limits that are <br />significantly lower. <br />We also strongly encourage the Select Board to take affirmative steps to reconstitute the <br />Noise Advisory Committee. Outreach and solicitation of citizen engagement is necessary. <br />The Noise Advisory Committee plays an important role in the development and <br />evaluation of these types of rules because, as residents, they have a vested interest in the <br />results. The committee should be composed of individuals with technical experience and <br />individuals with a strong desire to establish a noise bylaw for Lexington that addresses <br />our particular needs. With support from expert consultants, as needed, the Noise <br />Advisory Committee should provide the Select Board with recommended updates to the <br />noise bylaw in 2024. Excessive or unwarranted noise can have a serious impact on <br />individuals' mental and physical health. Improving the noise bylaw will help to resolve <br />the problems that have affected residents over the past few years, make the rules clear for <br />all parties, and support Lexington's ongoing efforts to improve the town's environment. <br />Approval of minutes. The draft minutes of August 22 were approved unanimously as written. <br />Next Meeting: A special meeting is planned to review an update of Solar Gap presentation <br />before October 16, 2023. The next regularly scheduled meeting of the Sustainable Lexington <br />Committee will be held at 6 pm on October 24, 2023. <br />The committee voted to adjourn at approximately 9:30 pm. <br /> .7