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k <br /> Draft 7/27/2018 8 <br /> Hour Traffic Volume,then no additional mitigation payment would be required, <br /> and the baseline would remain unchanged. <br /> • If the Observed Annual Average Boeing Driveway Volume for the current year is <br /> higher than the Boeing Current Baseline PM Peak Hour Traffic Volume,then <br /> Boeing would make additional mitigation payments of$1,006 for each PM peak <br /> hour trip that exceeded the baseline.This would also increase the Boeing Current <br /> Baseline PM Peak Hour Traffic Volume for future years to the level of the <br /> Observed Annual Average Boeing Driveway Volume for the current year. <br /> Example: <br /> In the current year the Observed Annual Average Boeing Driveway Volume was <br /> 11,000 PM peak hour trips. Since this is less than the baseline of 12,315,no <br /> additional mitigation would be required.If next year the Observed Annual <br /> Average Boeing Driveway Volume was 12,500 then Boeing would be required to <br /> mitigate the increase of 185 trips above the baseline (12,500— 12,315= 185). The <br /> amount of mitigation would be$1,006 times 185 which equals$186,110. The <br /> Boeing Current Baseline PM Peak Hour Traffic Volume would then be 12,500 <br /> PM peak hour trips. <br /> Confirming the Initial Baseline <br /> The following provides excerpts from the 1991 DEIS, 1991 FEIS and the City of Everett <br /> SEPA decision document which confirm that 12,315 is the correct amount for the 1991 <br /> Boeing Baseline PM Peak Hour Volume. <br /> Figure 2 shows an excerpt from the first page of the 1991 DEIS Executive Summary and <br /> provides the key employment levels assumed in the determination of the impacts of the <br /> Boeing expansion in 1991. Specifically these levels are 18,550 (employement level <br /> assumed in Boeing's previous approval in 1978)and 33,500 (maximum employment <br /> level assumed for approved expansion).These employment levels were important for <br /> determining the total new PM peak hour trips generated which was the basis for the <br /> determination of the mitigation amount. In 2001 Addendum#7 raised the maximum site <br /> employment level to 35,000 but no additional traffic analysis was conducted and no <br /> additional mitigation was provided at that time. <br /> c\userscam kdocuments\opened_from outlook\attactunent c(methodologY).doc <br /> 104 <br />