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7 NOISE POLLUTION CONTIZOL 7030..006.0 <br />(1) the .build.ing is constructed in such a way that the..exte.rior to. interior sound level <br />attenuation is at least 4. dB(:A); <br />(2) thc. building :leas 3 ear -round climate control;. imd <br />(3) thebuilding has no areas or accommodations that:are intended for outdoor.aaiivities: <br />D, The standards for a building in a Eloise area classification 3 shall be applied to a building ill <br />a »Oise. area classification 2 if the following conditions are met: <br />(1) the building is constructed ill such a. Way that the: exterior to interior sound. IcVel <br />attenuation is. at least 30 dB(A); <br />(2) the building has year-round chinate control; and. <br />p) the building has no: areas or accommodations that are intended .for botdoor actiV:ities. <br />Statutory. Authority:..'i2'S s. 116.07 <br />History:. 11 SR 43. 18 SR 614 <br />Posted': 4�eceinb(,r 12. 2003 <br />7030.0060 MEASUREMENT METHODOLOGY. <br />Subpart 1. Measurement Incation.. M.emurentent of sound rnust be made ator w-ithiiz.the appl cable <br />FAC at the. point. of human activity which is. nearest. to.:the noise 50wce. All m'easuretnents shaII be.`nrade <br />outdoors. <br />Subp1 2. Equipment specifications. All sound ]eve..l.measuring devices must meet TT }ae .C7 .I_ II, ar <br />S specifications under American Nati6nai .Standards Institute S 1..4-1983. <br />Subp. 3. Calibration. All sound Icvel mnsuring devices ]rust, at 'a tni.nimurn, be externally field <br />calibrated befare..and after monitoring using a calibration device of I rlowh frecluency and sound pressure <br />level. <br />Su.bp. 4. Measurenaeutpro.cedures. The followingprocedores must. beused. to.obtain.representative <br />sound level measurements: <br />A:, Measurements must be . made at least three feet off the ground or surface and away from <br />natural or artificial structures which would prevent.an accurate measurement. <br />S. Measurements must be..made using'the.A-weighting and fast response characteristics of the <br />sound measuring device as specified in American National Standards Institute S1.4-1983. <br />C. Measurements must.not be.made in sustained. winds or in precipitation whiff li results in a <br />difference ofless iltait ten decibels bet-ieen the background noise. level andtlre noise source being measured. <br />D. Measurements must .be made usi.rig a :microphone. which. is. protected :from Ambidot <br />conditions Which would prevent.an .accurate measurement. <br />Subp. 5; Data documentation. A. summary sheet for all sound level rheasurenients shall be <br />compleied acid signed by :the pet•son making the measurements_ .At a mininipin, the summary street shall. <br />include:. <br />A.. date; <br />Co.pyrigh1 02003 by the Rcvisor 0f Statutcs, State of. Minnesota. All nights Reserved, <br />