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City of San Leandro <br />311 MacArthur Boulevard Residential Project <br /> <br />68 <br />□ Inspect all proposed equipment and fit all equipment with properly operating <br />mufflers, air intake silencers, and engine shrouds that are no less effective than as <br />originally equipped by the manufacturer. <br />□ Post a sign, clearly visible at the site, with a contact name and telephone number of <br />the City of San Leandro’s authorized representative to respond in the event of a <br />noise complaint. <br />□ Place stationary construction equipment and material delivery in loading and <br />unloading areas as far as practicable from the residences. <br />□ Limit unnecessary engine idling to the extent feasible. <br />□ Use smart back-up alarms, which automatically adjust the alarm level based on the <br />background noise level, or switch off back-up alarms and replace with human <br />spotters. <br />□ Use low-noise emission equipment. <br />□ Limit use of public address systems. <br />□ Minimize grade surface irregularities on construction sites. <br />All other noise impacts were determined to be less than significant with no mitigation measures <br />were required in the General Plan EIR. Table 10 provides the noise compatibility guidelines for the <br />City of San Leandro. <br />Table 10 City of San Leandro Noise and Land Use Compatibility Guidelines <br /> Noise Exposure Levels (CNEL, dBA) <br />Land Use Category <br />Normally <br />Acceptable <br />Conditionally <br />Acceptable <br />Normally <br />Unacceptable <br />Clearly <br />Unacceptable <br />Residential – Low Density Single Family, Duplex, <br />Mobile Homes <br />50-60 55-70 70-75 75+ <br />Residential- Multiple Family 50-65 60-70 70-75 75+ <br />Transient Lodging, Motels, Hotels 50-65 60-70 70-80 80+ <br />Schools, Libraries, Churches, Hospitals, Nursing Homes 50-70 60-70 70-80 80+ <br />Auditoriums, Concert Halls, Amphitheaters NA 50-70 NA 65+ <br />Sports Arena, Outdoor Spectator Sports NA 50-75 NA 70+ <br />Playgrounds, Neighborhood Parks 50-70 67.5-75 NA 72.5+ <br />Golf Courses, Riding Stables, Water Recreation, <br />Cemeteries <br />50-75 70-80 NA 80+ <br />Office Buildings, Businesses, Commercial and <br />Professional <br />50-70 67.5-77.5 75+ NA <br />Industrial, Manufacturing, Utilities, Agricultural 50-75 70-80 75+ NA <br />dBA = A-weighted sound pressure level; CNEL = Community Noise Equivalent Level <br />NA = not applicable <br />Source: San Leandro 2016a