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Sec. 18-312. - Exterior noise standards. <br />(a) The followinB noise standards, unless otherwise specifically indicated, shall apply to all residential property within a designated noise zone: <br />NOISE STANDARDS <br />Noise zone Noise Level Time Period <br />1 55 dB(A) 7:00 a.m.-1"0:00 p.m. <br />50 dB(A) 10:00 p.m.- 7:00 a.m. <br />In the event the alleged offensive noise consists entirely of impact noise, simple tone noise, speech, music, or any combination thereof, each of the above noise <br />Ievels shall be reduced by five (5) dB (A). <br />(b) ltshall beunlawfulforanypersonatanylocationwithintheCityof Santa Ana to create any noise, ortoallowthe creation of anynoiseon property owned, <br />leased, occupied, or otherwise controlled by such person, when the foregoing causes the noise level, when measured on any other residential property, to exceed: <br />(1) The noise standard for a cumulative period of more than thirty (30) minutes in any hour; or <br />l2l The noise standard plus five (5) dB(A) for a cumulative period of more than fifteen (15) minutes in any hour; or <br />(3) The noise standard plus ten (10) dB(A) for a cumulative period of more than five (5) minutes in any hour; or <br />(4) The noise standard plus fifteen (15) dB(A) for a cumulative period of more than one minute in any hour; or <br />(5) The noise standard plus twenty (20) dB(A) for any period of time. <br />(c) ln the event the ambient noise level exceedsanyof thefirstfour(4) noise limit categories above, thecumulative period applicable to said categoryshall be <br />increased to reflect said ambient noise level. ln the event the ambient noise level exceeds the fifth noise limit cateBory, the maximum allowable noise level under <br />said category shall be increased to reflect the maximum ambient noise level. <br />(Ord. No. NS-1441, S L, 8-21-78]r <br />Sec. 18-313. - lnterior noise standards. <br />(a) The following interior noise standards, unless otherwise specifically indicated, shall apply to all residential property within a designated noise zone: <br />INTERIOR NOISE STANDARDS <br />Noise Zone Noise Level Time Period <br />1 55 dB(A) 7:00 a.m.-10:00 p.m. <br />45 dB(A) 10:00 p.m.-7:00 a.m.