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6.1.A. - Page 68 FloGard Perk Filter Maintenance Plan for ELAN-Redwood City January 18, 2013 Project Address & Cross Streets:145 Monroe St Redwood City, CA Bounded by Franklin St and Wilson St Assessor's Parcel No.: APN's 053-173-04, 05, 06, 07, 11, 12, 13, 16, 19, and 21 Property Owner: Elan-Redwood City, LLC. Phone No.: (415) 293-8246 Designated Contact: Ali Warner Mailing Address: One Market-Spear Tower 35th & 36th Floor San Francisco, CA 94105 The property contains three (2) treatment structures, located as described below and as shown in the attached site plan: ■ Flo-Gard Perk Filter#1 is located on the proposed Access Drive at the north east portion of the project. ■ Flo-Gard Perk Filter#2 is located in the sidewalk on Franklin Street. I. Routine Maintenance Activities Table 1 shows the routine maintenance activities, and the frequency at which they will be conducted. In addition, Table 1 Routine Maintenance Activities for FloGard Perk Filter No. Maintenance Task Frequency of Task 1 Remove accumulated sediment, litter and debris from FloGard Perk Filter Before wet season and as and dispose of properly. Confirm that no clogging will occur and that the necessary structure will drain per design standards. 2 Inspect FloGard Perk Filter to ensure that there are no clogs. Test with Monthly during the wet season, garden hose to confirm that the filter will drain per design standards. and as needed after storm events 3 Inspect overflow pipe to ensure that it will safely convey excess flows to Before the wet season, and as storm drain. Repair or replace any damaged or disconnected piping. necessary 4 Inspect FloGard Perk Filter to ensure that box is structurally sound (no Annually cracks or leaks). Repair as necessary. 5 Inspect FloGard Perk Filter using the attached inspection checklist for Level Per manufacturer's 1, Level 2 and Level 3 inspections(see attached FloGard Perk Filter recommendations(attached) Systems Operations and Maintenance Manual) Page 1