RDA Reso 2000-004 - Laserfiche WebLink

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The noise contour map developed for the; San Lemidro General Plan indicates that the noise environment at the project site is primarily affected by rail and vehicle traffic and that noise levels in the area are generally between 65 and 70 dBA Ldn (City of San Leandro, 1989). Supplemental observations confirm that vehicle traffic on San Leandro Boulevazd and Davis Street and BART operations are the principal source of noise at the project site and that, based on the measurements described below, .ambient noise levels at the project site aze typically within the range of 60 to 65 Ldn• To provide the basis for evaluating potential impacts of the project on the neazest noise-sensitive uses, ESA undertook a series of noise measurements at the project site and at the property line of neazby residences. The Ldn at the project site was measured to be 62 dBA. The residences nearest the proposed grocery store truck loading bay aze approximately 150 feet away and aze separated by significant vegetation on the creek banks. Long-term noise was monitored at 609 Pershing Drive. The Ldn at this residence was measured to be 60 dBA. Consequently, the existing vegetative barrier between .the project site and the residences on the north side of the creek provides approximately.2 dBA of attenuation of noise from the nearest sources (vehicle traffic on San Leandro Boulevazd and BART). SENSITIVE RECEPTORS Sensitive receptors located nearest the project site are single family residences located on the 300 block of Lille Street and 600 block of Pershing Drive, approximately 150 feet north of the proposed grocery store loading area. Multi-family residences at 1132 Carpentier Street are located approximately 80 feet from proposed parking areas and 120 feet from the proposed pharmacy drive-through (see Figure 1). Residences on Arroyo and Toler Avenues are also located across the creek from the project site. REGULATORY SETTING Local noise issues are regulated by General Plan policies and by enforcement of Noise Ordinance standards. The San Leandro General Plan contains guidelines for determining the compatibility of various land uses with different noise environments (City of San Leandro, 1989). The General Plan recognizes that some land uses are more sensitive to ambient noise levels than others, due to the amount of noise exposure (in terms of both exposure duration and insulation from noise) and the types of activities typically involved. For residential land uses, for example, the General Plan indicates that a noise environment of 55 Lan or less is "clearly .~ ~;