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<br />Table 1 <br /> <br />Zone Zoning District Name Runoff Maximum Inlet <br /> Coefficient "C" Time in Minutes <br />R-1 Low Density Residential 0.50 15 <br />R-2 Mid Density Residential 0.60 15 <br />R-3 High Density Residential 0.80 10 <br />MH Manufactured Housinl!. District 0.55 15 <br />NC Neil!.hborhood Commercial District 0.80 10 <br />GC General Commercial District 0.85 10 <br />BI Business Industrial Park District 0.85 10 <br />LI Light Industrial 0.85 10 <br />HI Heavv Industrial 0.85 10 <br />PUD Planned Unit Development District variable 10 to 15 <br /> <br />Miscellaneous Land Uses <br /> <br />Land Use <br /> <br />Runoff Coefficient "C" <br /> <br />Church <br />School <br />Park <br /> <br />0.70 to 0.90 <br />0.50 to 0.90 <br />0.30 to 0.70 <br /> <br />C. Datum <br /> <br />All drainage plans shall be prepared based on United States Geodetic Survey datum, 1978 <br />adjustment, consistent with National Flood Insurance Program, Flood Insurance Study for <br />the City of La Porte. <br /> <br />5.5 REQUIRED DETENTION <br /> <br />Detention Basins - Unless otherwise provided for in this Section, Detention Basins will be <br />required for developments within the following watersheds. <br /> <br />Little Deer Creek -.,- F212 <br />. Upstream of Main Street <br /> <br />Little Cedar Bayou - F216 <br />. Upstream of State Highway 146 <br /> <br />Big Island Slough - B 1 06 <br />. All segments <br /> <br />Spring Gully - B 1 09 <br />. All segments <br /> <br />Willow Spring Bayou - B 112 <br />. All segments <br /> <br />Taylor Bayou - Al 04 <br />. All segments <br /> <br />The listed watersheds are shown on Figure 3. <br /> <br />Storm water Criteria Page 4 of 10 <br />