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<br />=~ <br />~1: <br />1:..... <br />'g.5 <br />0:_ <br /> <br />- <br />II> <br />- <br />U <br />- <br /> <br />Ql <br />Cl Q' <br />c P <br />.&: <br />U <br />II> <br />o <br /> <br /> <br />Q; <br /> <br /> <br />Time <br /> <br />Q~_..._--- Rural Peak Discharge <br />0;--- Urban Peak Discharge <br /> <br />t r - ._un. Rural Time to Peak Discharge <br />P u <br />tp_n Urban Time to Peak Discharge <br /> <br />Vol' __,n Rural Volume of Runoff <br />Volu __m Urban Volume af Runoff <br /> <br /><:::I <br />C... <br />...-, <br />W <br />W <br />(,;C <br /> <br />I <br />I <br />1 <br />I <br />I <br />I <br />1 <br />I <br />I <br />--,----- -----~ <br />I ........... I -...... <br />: / : " ,<,:01' <br />: / I <br />1/ I ........... <br />I I "- <br />.....1'1 I """"'- <br />I __ <br /> <br />--- <br /> <br />Rural Hydrograph <br />Urban Hydrograph <br /> <br />Note: Volu > VolT <br />GENERALLY <br /> <br /><<> <br /> <br />tU <br />P <br /> <br />t' <br />P <br /> <br />Time {hd <br /> <br />Fi gure II-1. <br /> <br />Urbanization Impacts on Basin Hydrologic Response Without Increased Detention <br />Storage. <br />