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7.1.G. - Page 56 <br /> Exhibit "C" <br /> Bioretention Area (including Bioretention Swale) Maintenance Plan for <br /> One Marina— BLDGS 10, 11, 12, 13, 15, 22, 23, 25, 26, & 27 <br /> January 2014 <br /> L <br /> .1L a Project Address and Cross Streets:639 & 637 <br /> •w TURNBUCKLE DRIVE, 642 & 648 & 650 BAIR <br /> ISLAND ROAD, 652 & 654 & 656 & 658 &660 <br /> ' r SEA ANCHOR DRIVE, REDWOOD CITY, CA <br /> I X Assessor's Parcel No.: 052-531-140 <br /> pr <br /> Property Owner: RC Peninsula Park. LLC <br /> ._•. �. -, Phone No.: 303-371-9000 <br /> Designated Contact: Mall Salmon <br /> Bioretention areas function as soil and plant- <br /> based filtration devices that remove pollutants Phone No.:510-453-0312 <br /> through a variety of physical,biological,and <br /> chemical treatment processes. These facilities Mailing Address:270 St. Paul Street, Suite 300 <br /> normally consist of a grass buffer strip,sand bed, <br /> pending area,organic layer or mulch layer, Denver, CO 80206 <br /> planting soil,and plants. <br /> The property contains 39 bioretention area(s), located as shown in the attached site plan'. <br /> 1. Routine Maintenance Activities <br /> The principal maintenance objective is to prevent sediment buildup and clogging, which <br /> reduces pollutant removal efficiency and may lead to bioretention area failure. Routine <br /> maintenance activities, and the frequency at which they will be conducted, are shown in <br /> Table 1. <br /> Table 1 <br /> Routine Maintenance Activities for Bioretention Areas <br /> No. Maintenance Task Frequency of Task <br /> 1 Remove obstructions,debris and trash from bioretention Monthly,or as needed after storm <br /> area and dispose of properly. events <br /> 2 Inspect bioretention area to ensure that it drains between Monthly,or as needed after storm <br /> storms and within five days after rainfall. events <br /> 3 Inspect inlets for channels,soil exposure or other Monthly,or as needed after storm <br /> evidence of erosion.Clear obstructions and remove events <br /> sediment. <br /> 4 Remove and replace all dead and diseased vegetation. Twice a year <br /> 5 Maintain vegetation and the irrigation system.Prune and Before wet season begins,or as <br /> weed to keep bioretention area neat and orderly in needed <br /> appearance. <br /> 6 Check that mulch is at appropriate depth(3 inches per soil Monthly <br /> specifications)and replenish as necessary before wet <br /> season begins. <br /> 7 Inspect bioretention area using the attached inspection Monthly,or after large storm events, <br /> checklist. and after removal of accumulated <br /> debris or material <br /> t Attached site plan must match the site plan exhibit to Maintenance Agreement. <br /> viT IOJIWO/P�na.P. datNW4 01,0 10➢51atwolar,umenlacuse.udmuen Page 1 NDS Approved 12/5/07 <br /> A�earuaeY-,W1a[i CgeevaK.,gncef_.ye1)fi51 CMAlludor <br /> ATTY/AGR.2014.035/One Marina Final Phase-Stormwater Agreement <br />