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within 24 hours of connecting to surface water. Sediment control is <br />required along channel edges to reduce sediment reaching channel. <br />6. Outlet Protection- pipe outlets must have energy dissipation installed <br />within 24 hours of connection to a surface water. <br />7. Erosion and sediment control methods -The applicant shall control runoff <br />as follows (a and b or a and c): <br />a. All exposed soil areas with a continuous positive slope that are <br />within 200 lineal feet of any sutface water, or any conveyance <br />(curb, gutter, storm sewer inlet, dt•ainage ditch, etc.) to a surface <br />water, must have temporary or permanent cover year round. The <br />area shall be stabilized if it has not been worked for seven (7) days <br />on slopes greater than three feet horizontal to one toot vertical <br />(3:1), fourteen (14) days on slopes ranging feom 3:1 to 10:1 and <br />twenty-one (21) days for flatter slopes. On sensitive sites exposed <br />soil areas with a greater than three feet horizontal to one foot <br />vertical (3:1) shall be stabilized in three (3) days and all other cases <br />seven (7) days. All exposed soil a<•eas must have temporary <br />erosion protection or permanent cover no later than November I51 <br />regardless of the stabilization requirements listed above. All <br />exposed soils from construction activities taking place after <br />November 1`~ must provide temporary erosion protection or <br />permanent cover by the end of the work day. <br />b. If more than 10 acres are disturbed and drained to a single point of <br />discharge temporary sediment basins must be installed. When site <br />restrictions do not allow for a temporary sediment basin, <br />equivalent measures such as smaller basins, check dams, and <br />vegetated buffer strips can be included. <br />c. Fot• disturbed areas less than ten (10) acres sedimentation basins <br />are encouraged, but not required. The applicant shall install erosion <br />and sediment controls at locations directed by the City. Minimum <br />requirements include silt fences, rock check dams, or other <br />equivalent control measures along slopes. Silt fences, rock check <br />darns, etc. must be regularly inspected and maintained. <br />8. Sediment basins related to impervious surface area - Where a project's <br />ultimate development replaces surface vegetation with one or more <br />cutnulative acres of impervious surface, and all runoff has not been <br />accounted for in a City's existing stormwater management plan or <br />practice, runoff from the 2 'h-inch 24-hour storm event shall be treated. <br />9. Silt fence -Silt fence shall be properly installed by being trenched and <br />buried at least six inches into the soil. Generally, sufficient silt fence will <br />be required to contain sheet flow runoff generated at an individual site. <br />L•rosion Cann•o! Ordinance 927- 7 <br />