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Bioretention Area <br />Inspection and Maintenance Checklist <br />Property Address: 2001 Williams Street. San Leandro, CA Property Owner: OCT Williams Street LLC <br />Treatment Measure No.: Date of Inspection: Type of Inspection: u Monthly J Pre-Wet Season <br />[; After heavy runoff iJ End of Wet Season <br />lnspector(s): c 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 <br />area between storms and does not standing water once inflow has <br />drain within five days after rainfall. ceased. Any of the following may <br />apply: sediment or trash blockages <br />removed, improved grade from head <br />to foot of 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 <br />overgrown. in 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. <br />• Bioretention Area Maintenance Plan -Page 3 NOS Approved Template Revised 11/28/11