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Mr. Kevin Kain — Bituminous Roadways Roseville Asphait Plant August 11, 2010 Page 5 of 10 probably be significantly higher because heavy duty trucks have higher noise levels [han cars — a car at 10 miles per hour produces 61 dB tompared with 76 d8 for a truck. The EaW did not consider the impacts of 6ackground noise which, In this area, can be significant, especially from Interstate 35W and Highway 36. Walnut Street and Terminal Road which all experience significant trutk trafiit. Ambient background noise from road transportation may range from 45 to 65 d8(A�. Noise levels trom major highways with higher traffit speeds can be significantly higher. Likewise, the EAW does not address the noise impads of increased rail trd�c, which can also be significant. We believe that the EAW needs a more thorougfi noise analysis that considers the actual use of the adjacent properties, the additive effects of all activities in the area of the proposed site, noise impacts from traffic and background noise levels. Fo�lowing a more tomplete noise analysls, the air permit needs to consider mitigative measures to reduce noise pollution, such as limiting the number of crashers and o[her equipment brought in from offsite allowed to operate at [he same time, limiting areas where the equipment can operate, Identifying possible strutturol changes to mitigate nolse potlutlon, and Iimiting times of day when the equipment can opera[e. .... A newspaper report of the July 29th public hearing quotes Bituminous Roadways as indicating ihat the crushers would operate from 6:00 AM through 8:00 PM while the EAW Indicates the crushers wiil �" operate from 7:00 AM to 7:00 PM. Whith is correct� Does the permit tnclude limits for the crusher hours of operatlon? Particulate Matter We are concerned about particulate emissions from [he proposed project. Tbe air Intakes on the roof of our buliding are close to the height of the storage piles and other emissions sources at the proposed asphalt plant site. Distance Distance from from SE �is[ance Nearest Corner from SE Distan[e Alr of Corner from Intake Air Bituminous Roadways property of Bldg Ce�ter to BR Intake �BR) Emission Source (ft) ft of Bldg Elevation Source Elevation Aaphalt rubble pile 300 539 874 988 714 976 RAP pile 372 618 973 993 780 976 Tanks 948 1160 1434 950 1334 976 Asphait millings pile 502 754 1091 994 916 976 1577 WES7BItANCH Uli[VE • SUCCE 2lq • bidEAN, VA P210] • TELEPHONE�70.1Q87�5800 • FAX�703�287•SNO7 www.gladstanecommertial rom I www �.I d__. ��Q�n�/ �.