Item 4: Ordinance Concerning Noise Disturbances

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9.638 Eugene Code 9.644 9~638 ExistinoUses. Activities. uses. equipment and processes existing as of January 27. 1982. that do not meet the standards set forth in sections 9.636 to 9.662 are subject to the following requirements: (a ) No use sha 11 be changed i n a manner that could resul tin a greater degree of nonconformity. -(b) Expansions and installation of new equipment or processes sha 11 conform to applicable standards as set forth in sections 9.636 to 9.662. (c) Time limits on existing use noise emissions that exceed stipulated maximums are prescribed in section 9..644(b). ( d) All uses. not otherwi se . prescri bed by thi S ordi nance shall conform to applicable, federal, state, and local laws and regulations. (Sections 9.638 added by Ordinance No* 18915. enacted January 27. 1982.) 9 . 640 New Uses. Act i vi ties, uses, equi pment and proc~sses establ i shed after January 27. 1982. shall observe the following requirements: (a) Applicable standards as set fo.rth 'in sections 9.636 to 9.662. When federal or state standards are more strict. they shall be observed. (b) Prior to issuance of a building permit or certificate of occupancy~the building official may require: 1. Evi dence that mandatory federal, state. and 1 oca 1 permits have been obtained. 2. lnformationdemonstra.ting that the proposed use. activity. process or equipment wi 11 comply with appl icable standards set forth in sections 9.636 to 9.662.. This informa- tion may be required as a report of 'findings prepared by qualified engineers or other technical consultants. (Section 9.640 added by Ordinance No. <18915. enacted January 27. 1982..) 9.. 642 Measurements. Accurate and representa.ti vemeasurements as necessary shall be made according to accepted engineering practice. Measure- ments shall be made at or anywhere beyond the property 1 i nes :of the property from which the emission is generated... . . . (Sections 9.642 added by Ordinance No.. 18915. enacted January 27,1982.) 9.644 Noise. In addition to applicable provisions in Chapter 4 of this code. maximum sound emissions shall not exceed equivalent sound pressure levels in decibels, A-Weighted Scale, for anyone hour as stipulated in the table in this section. These maximums are applicable beyond any property 1 ; nes of the property conta i n; ng the n01 se .. Equi va 1 ent sound press.ure 1 eve 1 (Leq) is a measure of the sound level for anyone hour. It is the energy average of al.' the various sounds emitted from the source during the hour. A-Weighted Scale is used to adjust sound measurements to simulate the sensitivity of the human ear. 9-207 12/23193