Laserfiche WebLink
Noise Area <br />Classification <br />Daytime <br />Nighttime <br />L10 <br />L50 <br />L10 <br />L50 <br />1 <br />65 <br />60 <br />55 <br />50 <br />2 <br />70 <br />65 <br />70 <br />65 <br />3 <br />80 <br />75 <br />80 <br />75 <br />Subp. 10. Nighttime <br />Nighttime means those hours from 10:00 p.m. to 7:00 a.m. <br />Subp. 11. Person <br />Person means any human being, any municipality or other governmental or political subdivision or other <br />public department or agency, any public or private corporation, any partnership, firm, association, or other <br />organization, any receiver, trustee, assignee, agency, legal entity, other than a court of law, or any legal <br />representative of any of the foregoing, but does not include the agency. <br />Subp. 12. Sound pressure level <br />Sound pressure level, in decibels, means 20 times the logarithm to the base 10 of the ratio of the pressure to the <br />reference pressure. The reference pressure shall be 20 micronewtons per square meter. <br />No person may violate the standards established in part 7030.0040, unless exempted by Minnesota Statutes, <br />section 116.07, subdivision 2a. Any municipality having authority to regulate land use shall take all reasonable <br />measures within its jurisdiction to prevent the establishment of land use activities listed in noise area <br />classification (NAC) 1, 2, or 3 in any location where the standards established in part 7030.0040 will be <br />violated immediately upon establishment of the land use. <br />7030.0030 Noise Control Requirement <br />No person may violate the standards established in part 7030.0040, unless exempted by Minnesota Statutes, <br />section 116.07, subdivision 2a. Any municipality having authority to regulate land use shall take all reasonable <br />measures within its jurisdiction to prevent the establishment of land use activities listed in noise area <br />classification (NAC) 1, 2, or 3 in any location where the standards established in part 7030.0040 will be <br />violated immediately upon establishment of the land use. <br />7030.0040 Noise standards <br />Subpart 1. Scope <br />These standards describe the limiting levels of sound established on the basis of present knowledge for the <br />preservation of public health and welfare. These standards are consistent with speech, sleep, annoyance, and <br />hearing conservation requirements for receivers within areas grouped according to land activities by the noise <br />area classification (NAC) system established in part 7030.0050. However, these standards do not, by <br />themselves, identify the limiting levels of impulsive noise needed for the preservation of public health and <br />welfare. Noise standards in subpart 2 apply to all sources. <br />Subp. 2. Noise standards <br />Noise Area <br />Classification <br />7030.0050 Noise area classification <br />Subpart 1. Applicability <br />The noise area classification is based on the land use activity at the location of the receiver and determines the <br />noise standards applicable to that land use activity unless an exception is applied under subpart 3. <br />Subp. 2. Noise area classifications <br />The noise area classifications and the activities included in each classification are listed below: <br />Land Use Activities <br />Household Units (includes farm houses) Transient lodging <br />A Guide to Noise Control in <br />Minnesota • October 2008 Minnesota Pollution Control Agency <br />16 <br />