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Elk River Station EAW <br /> <br />September 6, 2002 <br /> <br />24. Odors, Noise and Dust <br /> <br />Will the project generate odors, noise or dttst during construction or during operation? [] Yes' [] No <br />If yes, describe sources, characteristics, duration, qttantities or intensity and any proposed mea6'~tres to mitigate <br />adverse impacts. ,4]so ident~; locations of nearby sensitive receptors and estimate impacts on them. Discuss <br />potential impacts on human health or qualio~ of life. (Note.' fitgitive dust generated by operations may be <br />discussed at item 23 instead of here.) <br /> <br />It is anticipated that noise levels will increase locally during construction of the Elk River Station. The <br />noise levels on and adjacent to the site will vary considerably depending on the pieces of equipment <br />being operated simultaneously, the percent of time in operation, and the distance from the equipment <br />to the receptors. It is anticipated that most construction activities will be confined to the hours <br />between 7:00 am and 7:00 pm and that a number of machines could potentially be operating <br />simultaneously. Noise generation estimates for various types of equipment that may be used on the <br />site are given in Ihe following table. <br /> <br />Table 24.1. Typical Construction Equipment Noise Levels <br /> <br />Machine Type Manufacturer Model Noise Level I Noise Level I Noise Level <br /> (dBA) at 200'I (dBA) at 400'I (dBA) at 800' <br />Crane ' American 7260 70 64 58 <br />Crane ' American 5299 58 52 46 <br />Backhoe ' Link Belt 4000 80 74 68 <br />BackhOe' John Deem 609A 73 67 61 <br />Front Loader ' Caterpillar 980 72 66 60 <br />Front Loader' Caterpillar 966 69 63 57 <br />Scraper' Caterpillar 660 80 74 68 <br />Scraper' Caterpillar 641B 73 67 61 <br />Truck ~ Unspecified Unknown 79 73 67 <br />Jack Hammer z Unspecified Unknown 76 70 64 <br /> <br />Data originated from a Federal Highway Administration study published in 1973. <br />Data originated from the Traffic Noise and Vibration Manual, Illinois Department of Transportation, 1977. <br /> <br />Land uses adjacent to the project site include agricultural, Park and Ride lot, and large lot residential. <br />The most sensitive noise receptors are the large residential lots located north of the site. However, <br />this residential area is buffered from the proposed project site by a minimum of 600 feet of wetland <br />and open space. Consideration will be given to limitin9 the daily duration of a majority of the <br />construction activityto 7:00 am and 7:00 pm to help minimize objectionable effects of noise <br />generated by construction activity. <br /> <br />The construction process is also expected to generate some dust. It is not anticipated that fugitive <br />dust will be generated in objectionable quantities. Consideration will be given to suppression of <br />airborne dust by application of water if significant fugitive dust generation occurs during site grading. <br />It is not anticipated that construction or operation of the Elk River Station will generate significant <br />odors. <br /> <br />25. Nearby Resources <br /> <br />Are any of the following resources on or in proximity to the site? <br />~[f yes, describe the resource and identify any project-related impacts on the resource. Describe any measures <br />to minimize or avoid adverse impacts. <br /> <br />Archaeological, Mstorical or architecntral resources? [] Yes [] No <br /> <br />The project proposers' team has not identified cultural resources or evidence that would strongly <br />suggest cultural resources on the project site. A cultural review of this property was requested from <br /> <br />W Westwood Professional Services, Inc. Page 17 <br /> <br /> <br />