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C <br />Project: North County Recycling Center and Sanitary Landfill - Non -Water Release Corrective Action Plan <br />Client: County of San Joaquin <br />Job No.: 2013.A135 <br />Calc'd By: NC <br />Date: 2/24/2014 <br />DRAINAGE CHANNEL ANALYSIS <br />Note: <br />1) Runoff and channel depth for 100 -Year storm event from Preliminary Closure and PostClosure Maintenance Plan prepared by Shaw Environmental, Inc., January 2010. <br />Channel depth based on a channel with 3:1 (horizontal to vertical) sideslopes. <br />Page 1 of 1 <br />Calculated Runoff <br />Design Channel Dimensions <br />Calculated Channel Depth <br />Max Discharge <br />100-Year(l) <br />1000 -Year <br />Sideslope <br />Bottom Width <br />Slope <br />Depth <br />100-Year(l) <br />1000 -Year <br />Ditch <br />(cfs) <br />(cfs) <br />(horiz:vert) <br />(ft) <br />(ft/ft) <br />(ft) <br />(ft) <br />(ft) <br />(cfs) <br />Notes <br />East r Perimete <br />Peri <br />Ditch - to <br />48.0 <br />54.7 <br />2:1 / 3:1 <br />12 <br />0.0020 <br />3.00 <br />1.32 <br />1.45 <br />210.8 <br />Channel capacity is sufficient. <br />Peri <br />East Perimeter <br />105.0 <br />123.9 <br />2:1 / 3:1 <br />12 <br />0.0020 <br />3.00 <br />2.02 <br />2.27 <br />210.8 <br />Channel capacity is sufficient. <br />Ditch - to D6 <br />East Perimeter <br />Ditch - D6 to <br />130.0 <br />178.5 <br />2:1 / 3:1 <br />12 <br />0.0020 <br />3.00 <br />2.27 <br />2.75 <br />210.8 <br />Channel capacity is sufficient. <br />Marsh <br />West Perimeter <br />45.0 <br />50.0 <br />2:1 / 3:1 <br />12 <br />0.0020 <br />3.00 <br />1.28 <br />1.38 <br />210.8 <br />Channel capacity is sufficient. <br />Ditch - A6 <br />West Perimeter <br />Peri <br />103.0 <br />119.3 <br />2:1 / 3:1 <br />12 <br />0.0020 <br />3.00 <br />2.00 <br />2.22 <br />210.8 <br />Channel capacity is sufficient. <br />Ditch - to F4 <br />West Perimeter <br />Ditch - F4 to <br />132.0 <br />171.7 <br />2:1 / 3:1 <br />12 <br />0.0020 <br />3.00 <br />2.28 <br />2.69 <br />210.8 <br />Channel capacity is sufficient. <br />Marsh <br />South Perimeter <br />Ditch - B6 to <br />9.0 <br />16.3 <br />2:1 / 3:1 <br />12 <br />0.0030 <br />3.00 <br />0.45 <br />0.64 <br />365.1 <br />Channel capacity is sufficient. <br />Outlet <br />South Perimeter <br />Not Calculated <br />6.3 <br />2:1aci 3:1 <br />/ <br />12 <br />0.0060 <br />3.00 <br />Not Calculated <br />0.59 <br />365.1 <br />Channel ca <br />capacity is sufficient. <br />Ditch - C5 <br />to <br />South Perimeter <br />Per <br />Not Calculated <br />49.7 <br />2:1 / 3:1 <br />12 <br />0.0060 <br />3.00 <br />Not Calculated <br />1.91 <br />365.1 <br />Channel capacity is sufficient. <br />Ditch - to <br />South Perimeter <br />Ditch - C6 to <br />Not Calculated <br />57.8 <br />2:1/ 3:1 <br />12 <br />0.0060 <br />3.00 <br />Not Calculated <br />2.08 <br />365.1 <br />Channel capacity is sufficient. <br />Outlet <br />Bench Ditch - F2 <br />Not Calculated <br />11.7 <br />2:1 / 3:1 <br />0 <br />0.0200 <br />1.50 <br />Not Calculated <br />1.04 <br />30.9 <br />Channel capacity is sufficient. <br />Berm Ditch - Al <br />Not Calculated <br />15.2 <br />2:1/ 20:1 <br />0 <br />0.0100 <br />2.00 <br />Not Calculated <br />0.74 <br />216.2 <br />Channel capacity is sufficient. <br />Note: <br />1) Runoff and channel depth for 100 -Year storm event from Preliminary Closure and PostClosure Maintenance Plan prepared by Shaw Environmental, Inc., January 2010. <br />Channel depth based on a channel with 3:1 (horizontal to vertical) sideslopes. <br />Page 1 of 1 <br />