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TABLE 1 <br /> DRAINAGE DESIGN STORM <br /> BASIN PRE-DEVELOPMENT POST-DEVELOPMENT <br /> Combined Sewer 10 Years 50 Years <br /> Downtown Area <br /> Combined Sewer 10 Years 10 Yean <br /> Ouuide Downtown ✓ — . <br /> Powder Mill 02 Years 25 Years <br /> Pigeon Creek N2 . . 02 Years 25 Yeazs <br /> Wat Branch . <br /> Pigeon Creek/i2� OS Years 25 Years <br /> East Branch <br /> Wood Cmk . � 02 Years 25 Years ^ <br /> Glenwood Creek 02 Years 25 YearS <br /> North Cnek OS Years 25 Years <br /> Narbach Creek OS Years 25 Yean <br /> Fdgewater 02 Years 25 Ycars <br /> Merrill-Ring OS Years 25 Years <br /> Downstream of bierrill Cr. Pukway <br /> All other areas 10 Years 25 Years � <br />