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• Particulate air quality near the project area averages 63 micro- <br />grams per cubic meter (ug/m3) annual geometric mean with a 24-hour <br />second highest reading at 271 ug/m' as recorded at an APCD operated <br />sampling site in Glenwood Springs. In undeveloped sections of the <br />area particulate concentrations range from 20 to 40 ug/m3. As <br />previously mentioned, an on-site monitoring program for TSP has <br />been conducted which will provide specific data to characterize on- <br />site conditions to be used in obtaining the necessary air quality <br />permits. <br />There has been no measurement of carbon monoxide, hydrocarbon, <br />nitrogen oxides, sulfur dioxide, or other gaseous pollutants near <br />the proposed site. Since no major sources of these pollutants <br />exist in the surrounding area, concentrations are considered to be <br />at background or natural levels and well within all applicable <br />standards. Construction and operation of the proposed project is <br />not considered a major source of these gaseous pollutants. <br />• <br />• <br />NCEC - Coal Ridge #1 3-53 ABC/1145/900301 <br />