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<br />Appendix D <br />Air Quality and Meteorology Data <br /> <br /> <br />r <br /> <br /> <br /> <br /> <br />r <br /> <br /> <br /> <br /> <br /> <br /> <br />TABLE D-4 <br />CLASS I VISIBILITY IMPACT ANALYSIS <br />[WAQM/ISC Level 1 Visibility Analysis -Parachute & Piceance Sites <br />telative Humidity Correction Factor 2.27 <br />.SCST3 Modeled NOx Concentration (ug/m3) 0.07 <br />calculated Nitrate Concentration (ug/m3) 0.09 <br />calculated Ammonium Nitrate Concenvation (ug/m3) O.L2 <br />.SCST3 Modeled PM10 Concentration (ug/m3) 0.03 <br />3ext from Ammonium Nitrate 0.8302 <br />3ext from Primary Particles 0.0870 <br />Total calculated Bext 0.9172 <br />3ackground Visual Range (Mm-I) 16.69 <br />calculated change (deciview) 0.5 <br />Vote: The annual average relative humidity correction factor is the same factor used in the IMPROVE <br />iata reconstructed extinction coefficient calculations. This value vas 2.27 as provided by John Vimont at <br />TABLE D-5 <br />CLASS I WATER CHEMISTRY IMPACT ANALYSIS <br />Acid Deposition and ANC/pH Calculations for Ned Wilson Lake <br />Annual NO2 Concentration with complete NOx conversion (ug/m3) O.O103 <br />Deposition Velocity (m/s) 0.007 <br />Total to dry deposition ratio 2 <br />Total Computed Nitrogen Deposition (kg/ha-yr) 0.0136 <br />Lake ANC (ueq/I) 37.00 <br />Annual Average Precipitation Total (incheslyr) 38 <br />Annual Average Precipitation Total (meters/yr) 0.97 <br />Intermediate Value Hn (eq/m2) 0.0000989 <br />Computation of pH Change - Part I -4.4318 <br />Computation of pH Change -Part 2 -4.4330 <br />Delta pH Change 0.0012 <br />Computation of ANC Change -Part 1 0.0000370 <br />Computation of ANC Change -Part 2 0.0000001 <br />Delta ANC Change(percent) 0.3% <br />Note: Calculations are based on "A Suggested Methodology for an Acid Deposition Screening Technique <br />Applicable Within 200 km of Isolated Sources", D.G. Fox, 1983 <br /> <br />1 <br />D-3 <br />