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Bioretention Area <br />Inspection and Maintenance Checklist <br />Property Address:_ 200 Twin Dolphin Drive Property Owner: 200.240 Twin Dolphin, LLC <br />Treatment Measure No.: Date of Inspection! Type of Inspection: ❑ Monthly ❑ Pre -Wet Season <br />Inspector(s): <br />❑ After heavy runoff ❑ End of Wet Season <br />❑ Other: <br />Defect <br />Conditions When Maintenance Is Needed <br />Maintenance <br />Comments (Describe maintenance completed <br />Results Expected When Maintenance Is <br />Needed? (Y/N) <br />and if needed maintenance was not conducted, <br />Performed <br />note when it will be done) <br />1_ Standing Water <br />When water stands in the bioretention <br />There should be no areas of standing <br />area between storms and does not drain <br />water once inflow has ceased. Any of <br />within five days after rainfall. <br />the following may apply: sediment or <br />trash blockages removed, improved <br />grade from head to foot of bioretention <br />area, or added underdrains. <br />2. Trash and Debris <br />Trash and debris accumulated in the <br />Trash and debris removed from <br />Accumulation <br />bioretention area, <br />bioretention area and disposed of <br />properly, <br />3. Sediment <br />Evidence of sedimentation in <br />Material removed so that there is no <br />(bioretention area. <br />clogging or blockage Material is <br />disposed of properly, <br />4. Erosion <br />Channels have formed around inlets, <br />Obstructions and sediment removed so <br />there are areas of bare soil, and/or other <br />that water flows freely and disperses <br />evidence of erosion. <br />over a wide area. Obstructions and <br />sediment are disposed of properly. <br />5 Vegetation <br />Vegetation is dead, diseased and/or <br />Vegetation is healthy and attractive in <br />overgrown. <br />appearance. <br />6. Mulch <br />Mulch is missing or patchy in appearance. <br />All bare earth is covered, except mulch <br />Areas of bare earth are exposed, or mulch <br />is kept 6 inches away from trunks of <br />layer is less than 3 inches in depth <br />trees and shrubs Mulch is even in <br />appearance, at a depth of 3 inches. <br />7, Miscellaneous <br />Any condition not covered above that <br />Meet the design specifications. <br />needs attention in order for the <br />bioretention area to function as <br />designed. <br />Bioretention Area Maintenance Plan - Page 4,- "'_' ..w,.... <br />C-% <br />