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City of Santa Ana -Park View at Town and Country Manor <br />Draft EIR Noise <br />Table 4.5.20: Estimated Mitigated Construction Noise Levels <br />at Sensitive Receptors (Pile Driver) <br />Proposed 8 -Story Tower and Subterranean Parking <br />Distance (feet) Maximum Noise Levels' (L.., dB) <br />Building A of Town and Country Manor <br />40 feet to the east <br />98 <br />Building B of Town and Country Manor <br />40 feet to the east <br />98 <br />Building C of Town and Country Manor <br />195 feet to the east <br />83 <br />Building D of Town and Country Manor <br />180 feet to the east <br />85 <br />Building E of Town and Country Manor <br />350 feet to the east <br />79 <br />Building F of Town and Country Manor <br />435 feet to the east <br />76 <br />Building G of Town and Country Manor <br />450 feet to the east <br />76 <br />Community Bible Church of Town and <br />65 feet to the north <br />94 <br />Country Manor <br />Residences at the City Place Mixed Use <br />95 feet to the west <br />90 <br />Development across Lawson Way <br />Santiago Park located across Memory Lane <br />along the northern border of the proposed <br />115 feet to the south <br />89 <br />project <br />Single - family homes across Memory Lane <br />500 feet to the east <br />76 <br />off Santiago Street <br />CNI College in the City of Orange <br />250 feet to the north <br />86 <br />in the City of Orange <br />Notes: <br />1. Noise levels based on construction noise at 101 dB measured at 50 feet from proposed 8 -foot tower; assumes a 6 -dB <br />reduction for each doubling of distance. Noise levels in this table depict peak levels and do not predict the 24 -hour <br />weighted average (CNEL). <br />Source: Michael Brandman Associates, 2009. <br />Hours of construction are required to comply with those established in Section 18- 314(1) of the City <br />of Santa Ana Municipal Code. Those hours are weekdays and Saturdays from 7:00 a.m. and 8:00 <br />p.m. Construction is prohibited on Sundays and federal holidays. <br />With the implementation of the noise attenuation measures in Mitigation Measures N -1 and N -2, <br />construction noise would be reduced. With mitigation, the construction noise at the single - family <br />homes east of Memory Lane would be reduced below the normally compatible standard of 65 dBA <br />CNEL for residential uses. For the remaining identified sensitive receptors, construction noise would <br />remain above the normally compatible standard of 65 dBA CNEL for residential uses. For Buildings <br />A and C, which are located adjacent to the proposed expanded lobby, and proposed aquatic and <br />wellness center, a noise level of 116 would remain very annoying and would cause maximum vocal <br />effect and physical discomfort. <br />Michael Brandman Associates 4.5 -31 <br />H\Cl t(PN- JN)b32]b32]003MMVB2]0030 Sec01 Noi�.doc <br />