RES 06035 - Laserfiche WebLink

Appendix E Acoustics and Noise Measurement Table E2 Typical Sound levels Measured in the Environment and Industry 140 Civil Defense Siren (100') 130 Jet Takeoff (200') 120 Pain Threshold 110 Rock Music Concert Diesel Pile Driver (100') 100 Very loud 90 Boiler Room Freight Cars (SO') Printing Press Plant Pneumatic Drill (SO') 80 Kitchen j Garbage Disposal Freeway (100') 70 Running Moderately loud Vacuum Cleaner (10') 60 Data Processing Center Light Traffic (100') SO Department Store large Transformer (200') 40 Private Business Office Quiet Soft Whisper (5') 30 Quiet Bedroom 20 Recording Studio 10 Threshold of Hearing 0 Source: lIIingworth & Rodkin, lnc. The State of California and the City of Pleasanton establish guidelines, regulations, and policies designed to limit noise exposure at noise sensitive land uses. CEQA, the State of California Building Code, and the Noise Element of the Pleasanton General Plan provide guidelines for the determination of the significance of a noise impact. The CEQA Guidelines, for example, suggest that an adverse noise impact would result from "a substan- tial permanent increase in ambient noise levels in the project vicinity above levels existing without the project," but CEQA does not define what noise level increase would be considered substantial. Determination of what constitutes a "substantial" increase in noise is normally made by reference to local general plans or other policy documents. In Pleasanton, the General Plan (1996) defines "normally acceptable," "conditionally acceptable," and "unacceptable" noise conditions for different land uses, as shown in Table E3. Thus, noise impact analysis practice is to consider project-generated noise level increases of 3 L or greater significant E3