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Extended Detention Basin Inspection and Maintenance Checklist Date of Inspection: <br />Property Address: 515 Cleveland St. —433 Harrison Ave. Treatment Measure No.: <br />Defect <br />Conditions When <br />Maintenance <br />Comments (Describe maintenance <br />Results Expected When Maintenance Is Performed <br />Maintenance Is Needed <br />Needed? (Y/N) <br />completed and if any needed maintenance was <br />not conducted, note when it will be done.) <br />Tree/Brush <br />• Growth does not allow <br />• Trees do not hinder maintenance activities. <br />Growth and <br />maintenance access or <br />• Remove hazard trees as approved by the City. <br />Hazard Trees <br />interferes with <br />maintenance activity. <br />(Use a certified Arborist to determine health of tree <br />or removal requirements). <br />• Dead, diseased, or dying <br />trees. <br />Drainage time <br />Standing water remains in <br />Correct any circumstances that restrict the flow of water <br />basin more than five days. <br />from the system. Restore drainage to design condition. <br />If the problem cannot be corrected and problems with <br />standing water recur, then mosquitoes should be <br />controlled with larvicides, applied by a licensed <br />pesticide applicator. <br />Ouffall <br />Debris or silt build-up <br />Remove debris and/or silt build-up and dispose of <br />structure <br />obstructs an ouffall structure. <br />I properly. <br />Side Slopes <br />Erosion <br />. Eroded over 2 in. deep <br />Cause of erosion is managed appropriately. Side <br />where cause of damage is <br />slopes or berm are restored to design specifications, as <br />still present or where there <br />needed. <br />is potential for continued <br />erosion. <br />• Any erosion on a <br />compacted berm <br />embankment. <br />Storage Area <br />Sediment <br />Accumulated sediment <br />Sediment cleaned out to designed basin shape and <br />>10% of designed basin <br />depth; basin reseeded if necessary to control erosion. <br />depth or affects inletting or <br />Sediment disposed of properly. <br />out letting condition of the <br />facility. <br />Liner (If <br />Liner is visible and has more <br />Liner repaired or replaced. Liner is fully covered. <br />Applicable) <br />than three 1/4 -inch holes in <br />it. <br />Emergency Overflow/ Spillway and Berms <br />Settlement <br />Berm settlement 4 inches <br />Dike is built back to the design elevation. <br />lower than the design <br />elevation. <br />Page 11 of 13 <br />ATTY/AGR/2019.203/515 CLEVELAND - STMMA EXHIBIT C <br />REV: 07-25-19 DZ <br />