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EXHIBIT C <br />Bio -retention Area' Maintenance Plan for <br />211/217 Vera Ave, Redwood City, CA <br />Bioretention areas function as soil and plant - <br />based filtration devices that remove pollutants <br />through a variety of physical, biological, and <br />chemical treatment processes. These facilities <br />normally consist of a grass buffer strip, sand bed, <br />ponding area, organic layer or mulch layer, <br />planting soil, and plants. <br />Project Address and Cross Streets <br />211/217 Vera Avenue, Redwood City, CA <br />Assessor's Parcel No.: 053-091-080/-090 <br />Property Owner: Vera Ave RC LLC <br />Phone No.: 650-397-5279 <br />Designated Contact: Scott Stotler <br />Phone No.: 650-397-5279 <br />Mailing Address: Vera Ave RC LLC <br />5150 EI Camino Real Suite E20 <br />Los Altos, CA 94022 <br />The property contains one (2) bio -retention areas, located as described below and as shown in the <br />attached site plane. <br />❑ Bio -retention Area No. 11 is located at the northeast property line parallel to Adams Street. <br />❑ Bio -retention Area No. 12 is located along the western property line parallel to Vera Avenue. <br />I. 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 bio -retention 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 Bio -retention Areas <br />No. <br />Maintenance Task <br />Frequency of Task <br />1 <br />Remove obstructions, debris and trash from bio- <br />Monthly, or as needed after storm <br />retention area and dispose of properly. <br />events <br />2 <br />Inspect bio -retention area to ensure that it drains <br />Monthly, or as needed after storm <br />between storms and within five days after rainfall. <br />events <br />3 <br />Inspect inlets for channels, soil exposure or other <br />Monthly, or as needed after storm <br />evidence of erosion. Clear obstructions and remove <br />events <br />sediment. <br />4 <br />Remove and replace all dead and diseased vegetation. <br />Twice a year <br />5 <br />Maintain vegetation and the irrigation system. Prune and <br />Before wet season begins, or as <br />weed to keep bio -retention area neat and orderly in <br />needed <br />appearance. <br />11 Page <br />ATTY/AGR.2019.266/211/217 Vera (Page 28 or 38) <br />