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Mr. Ctrarles Hobirn;un <br />Pape 2 <br />October 26, 1982 <br />The following is a summary of all data collected: <br />As you can see from the data above; in most cases the noise <br />impact from U.S. 61 is greater than the noise recorded from the <br />test shots. Sites #5 and #6 were not as heavily impacted by U.S. <br />61 where the data indicates the shooting; was noticeable but not <br />obtrusive. <br />I would like to point our that at Site 115 a barking dog was <br />recorded at 55 dB(A) and at Site #6 a distant dirt bike was <br />recorded at 59 dB(A). I would consider decibel levels under <br />40-45 as quiet. <br />l:n lin effort to get a speedy response and assessment to you 1 <br />have kc.•pt my report brief and non-technical however, I arrr willilrje <br />to answer verbally any questior►s or comments that may come up. 1 <br />think the data can be interpreted by the Town of Forest Lake with <br />11ttI E:t f'or't. <br />I1' you net,j further information ple'l,-'e feel free to contact rn< <br />Yours truly, <br />Dave Kelso <br />Program Development/Noise <br />Division of Air Quality <br />DK:jms <br />Attachment <br />dB(A) of <br /># of Shots <br />dB(A) of <br />dB(A) <br />Site # <br />Gun Shots <br />Recorded <br />U.S. 61 Traffic <br />Background <br />-�vl <br />ls(/ I. <br />1 <br />50-61 <br />s*�,�� <br />11 <br />56-75 <br />44-50 <br />q' <br />2 <br />50-6o <br />ss <br />8 <br />54-61 <br />45-52 <br />�'- <br />3 <br />50-55 <br />-s <br />10 <br />44-58 <br />37-42 <br />y,' <br />4 <br />48-55 <br />61,5- <br />8 <br />5o-60 <br />40-50 <br />5 <br />41-48 <br />Hyl <br />16 <br />42-44 <br />36-40 <br />38 <br />6 <br />36-41 <br />3g. 5" <br />21 <br />barely audible <br />24-30 <br />'t-: r' <br />As you can see from the data above; in most cases the noise <br />impact from U.S. 61 is greater than the noise recorded from the <br />test shots. Sites #5 and #6 were not as heavily impacted by U.S. <br />61 where the data indicates the shooting; was noticeable but not <br />obtrusive. <br />I would like to point our that at Site 115 a barking dog was <br />recorded at 55 dB(A) and at Site #6 a distant dirt bike was <br />recorded at 59 dB(A). I would consider decibel levels under <br />40-45 as quiet. <br />l:n lin effort to get a speedy response and assessment to you 1 <br />have kc.•pt my report brief and non-technical however, I arrr willilrje <br />to answer verbally any questior►s or comments that may come up. 1 <br />think the data can be interpreted by the Town of Forest Lake with <br />11ttI E:t f'or't. <br />I1' you net,j further information ple'l,-'e feel free to contact rn< <br />Yours truly, <br />Dave Kelso <br />Program Development/Noise <br />Division of Air Quality <br />DK:jms <br />Attachment <br />