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Flow -Through Planter Maintenance Plan for <br />Broadway Plaza (Office) <br />Flow-through planters are designed to treat and <br />detain runoff without allowing seepage into the <br />underlying soil. They can be used next to <br />buildings and other locations where soil moisture <br />is a potential concern. <br />11/04/2022 <br />Project Address and Cross Streets: 1501 <br />Broadway, Redwood City CA 94063 near <br />Woodside Rd, Chestnut St and Bay Rd <br />Assessor's Parcel No.: 054-012-120, <br />054-012-130 054-012-140. 054-012-150 <br />054-012-160 and 054-012-170 <br />Property Owner: The Sobrato Organization, <br />LLC <br />Phone No.: (650) 876-7010 <br />Designated Contact: Peter Tsai <br />Phone No.: (650) 876-7010 <br />Mailing Address: 599 Castro Street, Suite <br />400. Mountain View CA 94041 <br />The property contains 9 flow through planter area(s), located as described below and as <br />shown in the attached site plan'. <br />■ OFFICE Flow Through Planter Pond TCM -01 is located along the North of the Broadway Plaza <br />site South of Broadway. <br />■ OFFICE Flow Through Planter Pond TCM -02 is located along the East of the Broadway Plaza <br />site South of Broadway. <br />■ OFFICE Flow Through Planter Pond TCM -03 is located along the East of the Broadway Plaza <br />site South of Broadway. <br />ff OFFICE Flow Through Planter Pond TCM -04 is located along the West of the Broadway Plaza <br />site North of Bay Road. <br />OFFICE Flow Through Planter Pond TCM -05 is located along the South of the Broadway Plaza <br />site North of Bay Road. <br />■ OFFICE Flow Through Planter Pond TCM -06 is located along the South West of the Broadway <br />Plaza site North of Bay Road. <br />■ OFFICE Flow Through Planter Pond TCM -07 is located along the South of the Broadway Plaza <br />site North of Bay Road and along the East of the Broadway Plaza site West of Woodside Road. <br />■ OFFICE Flow Through Planter Pond TCM -08 is located along the South East of the Broadway <br />Plaza site North of Bay Road. <br />IN OFFICE Flow Through Planter Pond TCM -09 is located along the South of the Broadway Plaza <br />site North of Bay Road. <br />■ OFFICE Self -Retaining Pond SR -1 is located along the East of the Broadway Plaza site West <br />of Woodside Road. <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 bioretention area failure. Routine <br />maintenance activities, and the frequency at which they will be conducted, are shown in <br />Table 1. <br />REV: 4-12-2023 SK <br />ATTY/AGR.2023.072/SI XX, LLC (Broadway Plaza STMMA) (Page 45 of 55) <br />Page 11 of 19 <br />