Laserfiche WebLink
._ <br />� <br />C.U.P Narrative: Proposed Bituminous Roadways Inc. Faci/ity March 6, 2009 <br />Roseville, MN <br />5. Impact on Public Health, Safety, and General Welfare <br />Environmental Factors <br />Asphalt plants need to address several environmental concerns that <br />include: air emissions, odors, noise, and fugitive dust. Many of these <br />environmental factors are addressed by a Minnesota Pollution Control <br />Agency (MPCA) air quality registration permit, air emissions control <br />equipment, noise abatement techniques, and proper watering to <br />minimize fugitive dust. Federal and State law requires that the owner <br />or operator of an asphalt plant must calculate each year the actual <br />emissions from the plant and ensure that total emissions remain below <br />the thresholds established by the MPCA. <br />Air Emissions and Odor <br />As hot air passes through the aggregate during the production of hot <br />mix asphalt it picks up some fine sand and dust particles. These <br />particles are removed by the emissions control system before the air <br />goes into the atmosphere. The brand new plant intended for Roseville <br />will have both primary and secondary collectors to remove these <br />particles. The coarsest particles are collected in the primary collector <br />and returned to the mix. The finest particles are then collected in the <br />secondary collector and are also returned to the mix. <br />� Warm Mix Pavement Technology <br />The plant will utilize technology allowing the production of warm mix <br />asphalt. Warm mix asphalt technology decreases the hot mixed <br />asphalt production temperature by 30 to 100 degrees Fahrenheit. This <br />allows for reduced energy consumption, lowered emissions, and the <br />elimination of visible smoke and odor. <br />Noise <br />The site must operate in compliance with State noise standards. <br />Vehicles and equipment will operate with standard noise reduction <br />features such as mufflers. Bituminous Roadways will invest significant <br />resources into perimeter berms and landscaping that will reduce noise <br />emissions from the site. <br />Fugitive Dust <br />The entire operational area of the site will be paved. The stock piles <br />and conveyors will be watered on a scheduled basis. <br />� Page 6 of 7 <br />