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TABLE 1 <br /> RUNOFF FACTORS FOR STORM SEWERS <br /> 1 <br /> FLAT ROLLING <br /> 0-51 >5t <br /> UNDEVELOPED LAND <br /> 1 " <br /> Wood $ Forest . . . . . . 0.05 0.10 <br /> Sparse Trees $Ground Cover . . . . 0.10 0.15_ <br /> Light Gr--ss to Bare Ground <br /> 1 DEVELOPED AREA <br /> Pavement $ Roofs . . . . . 4. . ... -,-90--' 0.90 <br /> Gravel Roads & Parking Lots . . . . . 0.75 I-. BD- <br /> City Business . . . . . . . . . . 0.85 0.90 <br /> 1 Apartment Dwelling Areas . . . . . . . 0. 80 0. 85 <br /> Industrial Areas (Heavy) . . . . . . . 0.70 0. 80 S <br /> Industrial Areas (Light) . . . . . . . 0.60 0.70 <br /> Earth Shoulder . . . . . . . . . . . . 0. 50 0. 50 <br /> Playground . . . . . . . . . . . . 0.25 0. 30 <br /> Lawns , Meadows E, Pastures . . . . . . 0.20 <br /> j Parks $ Cemetery . . . . . . . . . . .-D-13`� <br /> SINGLE FAMILY RESIDENTIAL . j <br /> (Dwelling Unit/Gross Acre) <br /> 1 1 . 0-1 . 5 DU/GA . . . . . . . . . . . . . . 0. 30 <br /> 1 . 5-3 . 0 DU/GA . . . . . . . . . . . . . . . 0. 35 <br /> 3.0-3. 5 DU/GA . . . . . . . . . . . . . . . 0.4n <br /> 3. 5-4 . 0 DU/GA . . . . . . . . . . . . . . . 0.45 <br /> 4 . 0-6. 0 DU/GA . . . . . . . . . . . . . . . 0. 50 <br /> 6 . 0-9. 0 Dll/GA . . . . . . . . . . . . . . 0.60 <br /> 1 9. 0-15 .0 DU/GA . . . . . . . . . . . . . 0 . 70 <br /> ' V <br /> p 18 <br /> 5/79 <br />