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<br />Exhibit 3-3). The 'Summary of Subbasin Data' provides a condensed listing <br /> <br /> <br />of data for each subbasin. Some of the data shown may be stored for subse- <br /> <br /> <br />quent use in the HEC-l Flood Hydrograph Package. (The data types, drainage <br /> <br /> <br />area, percent imperviousness, and basin lag (TP), can be stored on Tape 20 <br /> <br />for retrieval by ATODTA if desired). <br /> <br />Exhibit 3-4 <br />2 of 16 <br />