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----------------------------------------------------------------------------- <br />********************** AERSCREEN MAXIMUM IMPACT SUMMARY ********************* <br />3-hour, 8-hour, and 24-hour scaled <br />concentrations are equal to the 1-hour concentration as referenced in <br />SCREENING PROCEDURES FOR ESTIMATING THE AIR QUALITY <br />IMPACT OF STATIONARY SOURCES, REVISED (Section 4.5.4) <br />Report number EPA-454/R-92-019 <br />http://www.epa.gov/scramOOl/guidance_permit.htm <br />under Screening Guidance <br />MAXIMUM <br />1-HOUR <br />CALCULATION CONC <br />PROCEDURE (ug/m3) <br />------------------------- <br />FLAT TERRAIN 4.659 <br />DISTANCE FROM SOURCE <br />IMPACT AT THE <br />AMBIENT BOUNDARY <br />3.271 <br />SCALED <br />SCALED <br />SCALED <br />SCALED <br />3-HOUR <br />8-HOUR <br />24-HOUR <br />ANNUAL <br />CONC <br />CONC <br />CONC <br />CONC <br />(ug/m3) <br />---------- <br />(ug/m3) <br />---------- <br />(ug/m3) <br />---------- <br />(ug/m3) <br />---------- <br />4.659 <br />4.659 <br />4.659 <br />N/A <br />51.00 meters <br />3.271 3.271 3.271 N/A <br />DISTANCE FROM SOURCE 1.00 meters <br />