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. � <br /> . � <br /> 'I <br /> I <br /> LUm. H. �. Kro1( � f�ssacic�t�s, Inc. <br /> Englne¢rs Consulting In Rcoushits <br /> , 5Q17 West MIII Rood • Minnetonka, Minn�asokc� 5534.5 <br /> Phone 45Q-9349494 • FAX 9�9_-9341300 <br /> Orono Liquors fnc, dba Narrows Saloon 6 Sept. 2005 <br /> PO Box 36 <br /> Navarre, MN 55392 <br /> Fax 763-425-3168 <br /> Greetings: <br /> We did, in keepirtg with your having asked that we do so, rnake a noise level monitoring <br /> test in the street named Keily Av and in front of the driveway of Nr. 2507 pointed put to us <br /> by Cindy as the place from whence complaints had come, between the hours of 2230 and <br /> 234�6 (10:30 pm and 11:45 pm1 of 27 August, 2005 and now tell you o�F the results af the <br /> net one-hour-long test. <br /> Location Noise Levefs {dBA) <br /> 2507 Ket(y Av Leo 49.5 L,o 53.5 <br /> The State Noise Reguletions call for the noise leve►s ta be measured in a statistic�l way so <br /> L,o means that the noise levol, as measured at the test point; was 49.5 dBA 50°k of the <br /> time. That means to say that 50°�6 of the time, it was louder than 49.5 and 50% of the <br /> time, it w8s quieter thar► 49.5 dBA. L+o means that ten percent of the time, it was louder <br /> than 53.5 and ninety percent of the time, it was quieter than 53.5 dBA. <br /> I have nvt seen the Noise Regulations that may apply to your exact location but the values <br /> set forth above, if teken to follow the Minneapolis snd Minnesota State Regulations would <br /> tall within such regulations, For example: <br /> �time f0700"= 220p)' ' � Ni4httime (2200-47Q0? <br /> Lso "- L,o°•� ' Lso L,o <br /> Residential Areas 60 '"�65'` ' ' '� 50 a5 <br /> Commerci$I Areas 65 70 65 . 70 <br /> Then, too, there are different kinds of declbels (d6) end the A or dBA kind is the one mast <br /> often used in the U.S. for stating com►4i�nn`noise•levels. <br /> As a comment: At that time of nigh4, we could hear street traffic as the loudest sources of <br /> noise but a neerby commercial building did, with it5 air conditioner or some similar machine <br /> noise Ievel at a steady rate, was the steady background noise. The weather conditions <br /> were gvod, mild summer temperature with lipht and variable winds. <br /> We used precision test apparatus, eq carefully calibrated with � reference SourCe traceable <br /> in accuracy to the NIST (Netianal tnstitute of Science and Techndlogy. Please call if <br /> questions arise, <br /> Very truly yours, <br /> �,,,,,,�.,...,....--• �,� ; !l <br /> WmK/iw � ' Wm. H. O. Kroll, P.E. <br />