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Flow -Through Planter Maintenance Plan for <br />W.L. Butler Office Building —1629 Main Street <br />January 20, 2017 <br />Project Address and Cross Streets: 1629 Main Street and EI Camino R92I <br />Redwood City. CA 94063 <br />Assessor's Parcel No.: 052-341.010. 052-176-040 <br />Properly Owner: Butler Realtv. LLC <br />Phone No.: (6501867-3399 <br />Designated Contact: Wallace Mur6t <br />Phone No.: (650) 6673399 (same as aboveli <br />Notable components to the project's storm system Include Detention Pipe (located in the drive <br />aisle/parking lot) and Storm Drain Lift Stations (located in the drive aisle, in a manhole structure, <br />and adjacent to the Main Street inlet in a manhole structure.) The property contains three (3) flow- <br />through planters and one (1) bioretention basin (see separate Maintenance Plan), located as <br />described below and as shown in the attached exhibits: <br />The Flow -Through Planters are located adjacent to the building on either side. <br />I. Routine Maintenance Activities <br />The principal maintenance objectives are to ensure that water flows unimpeded into the <br />flow-through planters and landscaping remains attractive in appearance. Table 1 shows <br />the routine maintenance activities for the flow-through planters and Table 2 shows routine <br />maintenance activities for the storm drain lift station and detention pipes. Both Tables 1 8 <br />2 show the frequency at which all maintenance activities will be conducted. <br />Page 1 <br />Fbw-through planters ere <br />designed to treat and <br />tempwadly detain runoHwAhout <br />ellowag seepage into the <br />urderfying awl They typicaly <br />receive nmogvia downspouts <br />leading baro the roofs of <br />adjacent buildoVs. <br />Page 23 of 32 <br />REV: 01-26-17 PR <br />ATTY/AGR.2017.018/1629 Main St <br />