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Pikeview Quarry Environmental Assessment Page 32 <br />Canton monoxide and particulate matter ate two out of six principal pollutants, or , <br />criteria pollutants. Areas which violate the NAAQS for one or more of the six criteria <br />pollutants[ t are classified by EPA as non-attainment azeas. The Pikeview Quarry is located , <br />in El Paso County, and in Colorado Springs. According to the most recent USA Air Qu~dity <br />Non-attainment Areas list (June, 2000), El Paso County (which includes the city of <br />Colorado ;springs) is neither included in the Non-Attainment Area for cazbon monoxide nor ' <br />in the Norl-Attainment Area for particulate matter. <br />Aca~rding to the EPA National Emission Trends (NET) databaselZ which includes ' <br />pollutants' levels at county monitoring stations, particulate matter and carbon monoxide in <br />El Paso County are currently below the NAAQS. Given the proximity of the Pikeview <br />Quarry to the city of Colorado Springs where the air quality monitoring stations are located, , <br />pollution levels at the monitoring site can be considered representative of the proposed <br />project site. <br /> 1 <br />The impacts from respirable particulate matter (PMto) or fugitive dust from <br />construction activities and wind erosion from disturbed areas is minimized at the Pikeview <br />Quarry through the application of water on the access roads. , <br />3.2.6 Naise ' <br />Noise is defined as sound that is loud, disagreeable or unwanted. Besides being a <br />nuisance, it can, under some circumstances, create health and safety hazards. For example, <br />long-term exposure to high levels of construction or traffic noise can be damaging to <br />unprotected individuals. Increasingly, there is an aesthetic component to the concern about <br />noise, especially in rural or recreational settings. Noise can also have detrimental effects on <br />the presence or movements of wildlife species. , <br />Noise in the proposed project azea comes primarily from the existing mining activities <br />in the Pikeview Quarry and traffic leaving and entering the quarry. The main roads used by , <br />the Pikeview Quarry trucks include Allegheny Drive and Centennial Boulevard. <br />The noise associated with the quarry activities includes on site traffic noise, and noise , <br />from mining (including loading, drilling and blasting), screening and crushing. Under <br />current milting operation, blasting occurs once a week, on average, over one years' time. <br />Screening and crushing occur in two processing plants located inside the mine boundaries. <br />The test results presented in table 3.4 illustrate the range of noise levels at the <br />Pikeview Quarry. , <br /> <br />I 1 The six criteria pollutants are: Carbon monoxide, Nitrogen dioxide, Ozone, Lead, Particulate matter, and Sulfur dioxide. ' <br />1 z The NET database replaces the former AIRS database. <br />Hydrosphere Resource Consultants. 1002 Walnut Street Suite 200, Boulder, CO 80302 <br />1 <br />