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standard are those noise sources identified by the San Joaquin County Development Title(Section 1025.9 [c]),including activities conducted in public parks and on school grounds,construction activity between " 6 a.m. and 9 p.m., agricultural activities,and residential air conditioning equipment. Traffic Noise. Significance criteria for traffic noise impacts are based on standards established by the San Joaquin County General Plan(Policy 1)and/or the Mountain House Master Plan(Section 11.3.1,Policy d). These criteria are applied at the property line of the affected sensitive resource,pursuant to the Specific Plan Requirements established by the MHMP(Section 11.51).Traffic noise impacts would be considered significant if implementation of the project would result in: the exposure of existing residences to traffic-generated noise levels that exceed 65 dBA Ld„/CNEL;and/or the exposure of an existing schools to traffic-generated noise levels that exceed 60 dBA LddCNEL; and/or the exposure of any sensitive receptor to a noticeable increase(i.e.,3 dBA or greater)in ambient noise levels. Compatibility of Proposed Land Uses with Predicted On-site Noise Levels.Land use compatibility noise thresholds differ according to land use type,as follows: . Land use compatibility with projected on-site noise levels would be considered significant if the project �. would result in the development of new noise-sensitive land uses in areas where existing or projected noise levels exceed the tiered threshold established by the MHMP.For residential land uses proposed under the MHMP,noise levels in new outdoor residential areas shall not exceed 60 dBA LddCNEL unless the design includes reasonable mitigation to reduce noise in outdoor activity areas to as close as 60 dBA LddCNEL as possible.Where not possible,an exterior noise level of up to 65 dBA LddCNEL may be allowed(Section 11.3.1,Policy [e] and Implementation[f]of the MHMP). For schools proposed under the College Park project,exterior noise levels shall not exceed 60 dBA Ldo/CNEL(Section 11.3.1,Policy[d] of the MHMP, and Policy[1] of the San Joaquin County General Plan). For existing residences on the College Park site(i.e.,residences in Grant Line Village);however,exterior noise levels shall not exceed 65 dBA Ld./CNEL(Policy 1 of the San Joaquin County General Plan). The proposed site for the Delta College campus would be subject to a significance threshold of 70 L&/CNEL for exterior noise levels,which is the standard applied to commercial and professional business uses based on the State of California General Plan Guidelines(State of California 2003). Because the Delta College site would not include residences,this land use is most comparable to commercial and professional business uses. . For industrial land uses proposed on the project site,exterior noise levels shall not exceed 75 dBA LdWCNEL(State of California 2003). 4.13.4 IMPACTS AND ANALYSIS ANALYSIS METHODOLOGY This section has been prepared based on: sound-level measurements collected at the College Park site;applicable state regulations and noise regulations of San Joaquin County;traffic data obtained from the data generated by TJKM Transportation Consultants and used to prepare the traffic analysis for this EIR(Section 4.11, "transportation');and noise modeling conducted for this analysis using the Federal Highway Administration (FHWA)Traffic Noise Prediction Model(FHWA-RD-77-108).The noise modeling output is available for review at the San Joaquin County Community Development Department, 1810 East Hazelton Avenue,Stockton,CA 95205. College Park at Mountain House Speclic Plan III Draft EIR EDAW San Joaquin County 4.13.15 Noise