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Minnesota Rules, Table of Chapters <br />Table of contents for Chapter 7030 <br /> <br />7030.0040 NOISE STANDARDS1 <br /> <br /> Subpart 1. So~pe. These standards describe the limiting <br />levels of sound established on the basis of present knowledge <br />for the preservation of public health and welfare. These <br />standards are consistent with speech, sleep, annoyance, and <br />hearing conservation requirements for receivers within areas <br />grouped according to land activities by the noise area <br />classification (NAC) system established in part 7030.0050. <br />However, these standards do not, by themselves, identify the <br />limiting levels of impulsive noise needed for the preservation <br />of public health and welfare. Noise standards in subpart 2 <br />apply to all sources. <br /> <br />Subp. 2. Noise standards. <br /> Noise Area <br /> Classification <br /> <br />Daytime Nighttime <br /> <br /> L50 L10 <br /> 1 60 65 <br /> 2 65 70 <br /> 3 75 80 <br /> <br />STAT AUTH: MS s 116.07 subds 2,4 <br /> <br />L50 L10 <br /> 50 55 <br /> 65 70 <br /> 75 80 <br /> <br /> HIST: 11 SR 43; 18 SR 614 <br />Current as of 11/03/98 <br /> <br /> $/20/00 11'.21 PM <br />ofl <br /> <br /> <br />