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ATTY/AGR.2014.260/1022 10th Ave <br /> Bioretention Area <br /> Inspection and Maintenance Checklist <br /> Property Address: 1022-1024 10th Avenue, San Mateo, CA 94061 Property Owner: 10th Avenue Partners, LLC <br /> Treatment Measure No.: 1 Date of Inspection: Type of Inspection: Monthly Pre-Wet Season <br /> After heavy runoff End of Wet Season <br /> Inspector(s): Other: <br /> Defect Conditions When Maintenance Is Maintenance Comments(Describe maintenance Results Expected When <br /> Needed Needed?(Y/N) completed and if needed maintenance was Maintenance Is Performed <br /> not conducted,note when it will be done) <br /> 1. Standing Water When water stands in the bioretention There should be no areas of standing <br /> area between storms and does not water once inflow has ceased.Any of <br /> drain within five days after rainfall. the following may apply:sediment or <br /> trash blockages removed, improved <br /> grade from head to foot of <br /> bioretention area,or added <br /> underdrains <br /> 2.Trash and Debris Trash and debris accumulated in the Trash and debris removed from <br /> Accumulation bioretention area. bioretention area and disposed of <br /> properly. <br /> 3. Sediment Evidence of sedimentation in Material removed so that there is no <br /> bioretention area. clogging or blockage. Material is <br /> disposed of properly <br /> 4. Erosion Channels have formed around inlets, Obstructions and sediment removed <br /> there are areas of bare soil, and/or so that water flows freely and <br /> other evidence of erosion. disperses over a wide area. <br /> Obstructions and sediment are <br /> disposed of properly. <br /> 5.Vegetation Vegetation is dead,diseased and/or Vegetation is healthy and attractive in <br /> overgrown. appearance <br /> 6. Mulch Mulch is missing or patchy in All bare earth is covered, except <br /> appearance.Areas of bare earth are mulch is kept 6 inches away from <br /> exposed, or mulch layer is less than 3 trunks of trees and shrubs. Mulch is <br /> inches in depth. even in appearance,at a depth of 3 <br /> inches <br /> 7. Miscellaneous Any condition not covered above that Meet the design specifications. <br /> needs attention in order for the <br /> bioretention area to function as <br /> designed. N <br /> CO <br /> 8 Sump Pump Before wet season and as needed Pump cycles per pre-determined <br /> off/on, high./low settings <br /> (D <br /> iV <br /> Bioretention Area Maintenance Plan—Page 4 (,� <br />