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7~ <br />USE THIS FIGURE ONLY IN ACCORDANCE WITH FIGURE "C-2" <br />1 oa <br />90 <br />= 80 <br />d <br />.+ <br />N TO <br />0 <br />n <br />~ 60 <br />50 <br />40 ~ <br />0 <br />10 20 30 40 50 60 70 80 90 <br />Connected impervious area, X <br />100 <br />0.0 <br />N <br />O <br />0.6 > > <br />L O <br />d +>>- <br />E L <br />r d <br />6 <br />1.0 °o, Y <br />a+ <br />V <br />d A <br />C V <br />C O <br />O F- <br />V <br />G <br />A -COMPOSITE CN WITH CONNECTED IMPERVIOUS AREA. <br />90 80 70 160 50 40 0 10 20 30 <br />Composite CN Total impervious <br />area. X <br />B -COMPOSITE CN WITH UNCONNECTED IMPERVIOUS AREAS <br />AND TOTAL IMPERVIOUS AREA LESS THAN 30go. <br />CN ADJUSTMENT DUE TO DIFFERENT CONDITIONS <br />OF IMPERVIOUS AREAS <br />FIGURE C-3 <br />