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Bioretention Area <br /> Inspection and Maintenance Checklist <br /> Property Address: 900 Middlefield Road Property Owner: <br /> Redwood Towers Partners, LLC, <br /> Treatment Measure No: Date of Inspection: Type of Inspection: ❑Monthly <br /> ❑Pre-Wet Season <br /> After heavy runoff EEnd of Wet Season <br /> inspector(s): <br /> Other: <br /> Defect Conditions When maintenance Comments(Describe Results Expected <br /> Maintenance Is Needed Needed?(YIN) maintenance completed and When Maintenance Is <br /> If needed maintenance was Performed <br /> not conducted.note when it <br /> will be done) <br /> 1 Standing When water stands in the There should be no <br /> Water bioretention area areas of standing water <br /> between storms and does once inflow has ceased <br /> not drain within five days Any of the following may <br /> after rainfall apply:sediment or trash <br /> blockages removed, <br /> improved grade from <br /> head to foot of <br /> bioretention area,or <br /> added underdrains <br /> 2 Trash and Trash and debris Trash and debris <br /> Debris accumulated in the removed from <br /> Accumulation bioretention area bioretention area and <br /> disposed of properly <br /> 3 Sediment Evidence of Material removed so that <br /> sedimentation in there is no clogging or <br /> • bioretention area blockage Material is <br /> disposed of properly <br /> 4 Erosion Channels have formed Obstructions and <br /> around inlets,there are sediment removed so <br /> areas of bare soil, and/or that water flows freely <br /> other evidence of and disperses over a <br /> erosion wide area Obstructions <br /> and sediment are <br /> disposed of properly <br /> 5 Vegetation Vegetation is dead. Vegetation is healthy <br /> diseased and/or and attractive in <br /> overgrown appearance <br /> 6 Mulch Mulch is missing or All bare earth is covered. <br /> patchy in appearance except mulch is kept 6 <br /> Areas of bare earth are inches away from trunks <br /> exposed,or mulch layer of trees and shrubs <br /> is less than 3 inches in Mulch is even in <br /> depth appearance,at a depth <br /> of 3 inches <br /> 7 Miscellaneous Any condition fig(7tration trench Maintenance Plan-,Page 1 Meet the design <br /> covered above that specifications <br /> needs attention in order <br /> for the bioretention area <br /> to function as designed <br /> Page 15 of 19 <br />