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Bioretention Area Maintenance Plan <br />J:\Eng14\140265\DWG\Exhibits\16_0421 Maintenance Exhibits for RWC\PDF\SWM\APPENDIX C\WORD\F.1-BioretentionTemplate.doc <br />Bioretention Area <br />Inspection and Maintenance Checklist <br />Property Address:275 Oracle Parkway, Redwood City, CA 94065 Property Owner: Oracle America Inc. <br />Treatment Measure No.: 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 <br />Needed <br />Maintenance <br /> Needed?(Y/N) <br />Comments (Describe maintenance <br />completed and if needed maintenance was <br />not conducted, note when it will be done) <br />Results Expected When <br />Maintenance Is Performed <br />1. Standing Water When water stands in the bioretentionarea between storms and does notdrain within five days after rainfall. <br />There should be no areas ofstanding water once inflow hasceased. Any of the following mayapply: sediment or trash blockagesremoved, improved grade from headto foot of bioretention area, or addedunderdrains. <br />2. Trash and DebrisAccumulation Trash and debris accumulated in thebioretention area.Trash and debris removed frombioretention area and disposed ofproperly. <br />3. SedimentEvidence of sedimentation inbioretention area.Material removed so that there is noclogging or blockage. Material isdisposed of properly. <br />4. Erosion Channels have formed around inlets,there are areas of bare soil, and/orother evidence of erosion. <br />Obstructions and sediment removedso that water flows freely anddisperses over a wide area.Obstructions and sediment aredisposed of properly. <br />5. Vegetation Vegetation is dead, diseased and/orovergrown.Vegetation is healthy and attractivein appearance. <br />6. Mulch Mulch is missing or patchy inappearance. Areas of bare earth areexposed, or mulch layer is less than 3inches in depth. <br />All bare earth is covered, exceptmulch is kept 6 inches away fromtrunks of trees and shrubs. Mulch iseven in appearance, at a depth of 3inches. <br />7. Miscellaneous Any condition not covered above thatneeds attention in order for thebioretention area to function asdesigned. <br />Meet the design specifications. <br />ATTY/AGR/2016.160/CENTRUM OWNERS ASSOCIATION - STMMA <br />REV: 06-22-16 JS <br />6. <br />1 <br />. <br />K <br />. <br /> <br />- <br /> <br />P <br />a <br />g <br />e <br /> <br />7 <br />6 <br />