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263 <br /> Article 6: Development Standards <br /> Section 6.4:Performance Standards <br /> (6) Vibration levels for the extraction of earth products and landfills shall be as set <br /> forth in Sections 5.11 and 5.12. <br /> (13) Commercial,Industrial,and Conditional Districts <br /> (1) No permitted Principal Use,Special Use or Accessory Use in I-C-1,O/RM,El,or <br /> 1-1 districts may generate transmitted vibration that is perceptible to the human <br /> sense of touch,measured at the outside boundary of the structure occupied by <br /> the use generating the vibration. <br /> (2) No permitted Principal Use,Special Use,Conditional I Ise or Accessory Use in <br /> the NC-2,CC-3,GC-4, EC-5, 1-2, 1-3,and AS,and Conditional <br /> DistrictsdistfiEtS may generate any ground transmitted vibration in excess of the <br /> limits set forth in the following table: <br /> TABLE 6.4.4.B:COMMERCIAL,INDUSTRIAL,AND CONDITIONAL i <br /> 99 <br /> PERMITTED GROUND-TRANSMITTED VIBRATION M, <br /> ZONING OF ADJACENT MAXIMUM PARTICLE VELOCITY FOR <br /> SECOND)LAND USE ZONING OF DEVELOPMENT SITE GENERATING LAND USE(INCHES PER <br /> NC-2&1-2[1] 0.02 <br /> Residential CC-3,GC-4,EC-5,1-3,AS,& <br /> Conditional Districts 2 0.20 <br /> NC-2&1-2[1] 0.10 <br /> Non-residential CC-3,GC-4,EC-5,1-3,AS,& <br /> Conditional Districts 2 0.20 <br /> NOTES: <br /> [1]Measurements taken at the boundaries of the zoning district lot containing the use generating <br /> the vibrations. <br /> [2]Measurements taken at the zoning district boundaries <br /> (C) Economic Development Zoning Districts <br /> (1) Maximum Permitted Ground Transmitted Vibration <br /> EX:VIRR <br /> E f.4.4.C:MAXIMUM PERMITTEI GaRlYN Y-TRANS74 ITT ATI t IL� <br /> RECEIVING LAND USE MAXIMUM PARTICLE VELOCITY FOR GENERATING LAND <br /> USE(INCHES PER SECOND) <br /> Residential development 0.02 <br /> Non-residential development 0.10 <br /> (2) Mitigation <br /> (a) Design features used to mitigate vibration must be clearly identified on <br /> the site plan. <br /> (b) Applicants must provide documentation of the source and level of <br /> vibration,and the specific manner in which the design feature will reduce <br /> vibration to acceptable levels. <br /> 6.4.5 Air Pollution <br /> (A) General Standards <br /> Orange County,North Carolina—Unified Development Ordinance Page 6-13 <br />