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L4. ENVIRONMENTAL ANALYSIS 4.5 NOISE LNoise-sensitive land uses in the immediate vicinity of the project are limited to residential dwellings on agricultural-zoned land, which are shown on Figure 4.5-2. Two residences are located west of the project site on Koster Road. One is located about 600 feet west of the southern portion of the Phase V area of the project site. The other is located further south and is approximately 850 feet from the southwest corner of the project site. Another residence, located south of Blewett Road, is approximately 100 feet from the property line of the project. There are also other residences located along roads the proposed truck routes that provide access to the project site. Three residential dwellings are located on the south side of Blewett Road just west of the overcrossing of Interstate 5 (Jones &Stokes, 1992). There are residences along both sides of the portion of Blewett Road east of the project site. Another house lies 200 feet east of Koster Road, between Blewett Road and SR 132. There are also clusters of houses along SR 132 east of Interstate 5, which are set back approximately 150 from SR 132. Another house is located a few thousand feet northeast of the Blewett Road overcrossing over Interstate 5. This house is more than 2,000 from the property line of the project site. All of the aforementioned sensitive receptors are located in San Joaquin County. The closest school to the project site is located on LWelty Road, approximately 5,000 feet east of the project site in Stanislaus County. REGULATORY SETTING b The project site lies within unincorporated portions of San Joaquin and Stanislaus Counties. Regulations from the San Joaquin General Plan Noise Element and the San Joaquin County Development Title are included below. Regulations from the Stanislaus County General Plan Noise Element are not included because a relatively small portion of the project site lies in Stanislaus County (98 of 680 acres)and because there are no noise-sensitive receptors in Stanislaus County located within 5,000 feet of the proposed mining activity,or along haul routes leading to the project site. LSAN JOAQUIN COUNTY NOISE ELEMENT L The San Joaquin County Noise Element establishes specific policies to ensure acceptable noise environments for each land use. Applicable policies include the following: Policy 1. The following exterior noise levels shall be considered acceptable: (a) 65 dBA DNL or less for residential development. (b) 60 dBA DNL or less for schools,group care facilities,and hospitals. Policy 4. Development shall be planned and designed to minimize noise impacts on neighboring noise sensitive areas and to minimize noise interference from outside Lnoise sources. Policy 6. The county shall seek to alleviate existing community noise problems. b RMC Pacific Vernalis Quarry Mining and Reclamation Project 4.5-5 ESA/203015 Administrative Draft EIR March 2004