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Manufactured Stormwater Treatment Measure Maintenance Plan for <br />Kaiser Redwood City <br />July 3, 2018 <br />Manufactured Stormwater Treatment Measures are PROPRIETARY treatment devices that tend to <br />be installed below ground and operate using some type of proprietary filter media, hydrodynamic <br />separation, or sedimentation and screening. Common examples of manufactured treatment <br />measures include manufactured media filters, inlet fitters or drain inserts, oil /water separators and <br />hydrodynamic separators. In August 2004, the Regional Water Board's Executive Office wrote a <br />letter stating that a project relying on inlet filters or oil/water separators as the sole treatment <br />measure would be unlikely to meet the maximum extent practicable standard of the National <br />Polutant Discharge Elimination System Permit. See the Countywide C.3 Technical Guidance <br />(www.flowstobay.orc) for more information. <br />Project Address: 1100 Veterans Boulevard, Redwood City, CA 94063 -2026 <br />Cross Street: Walnut St. <br />Assessor's Parcel No.: 053- 202 -140, 053- 204 -050, 052 - 376 -030 <br />Property Owner: Kaiser Foundation Hospitals Phone No.: 650 -299 -3254 <br />Designated Contact: Narsimha Irrinki. SSA Phone No.: 650 -299 -3254 <br />Mailing Address: 901 Marshall Street, Floor 3, Redwood City, CA 94063 <br />The property contains 1 Kristar Up -Flo Media Filter located as described below and as <br />shown in the attached site plant. <br />Kristar Up -Flo Media Filter located at ambulance drop -off area on Veterans Blvd. <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 failure of the manufactured treatment <br />measure. Routine maintenance activities, and the frequency at which they will be <br />conducted, are shown in Table 1. <br />Table 1 <br />Routine Maintenance Activities for Manufactured Treatment Measures <br />No. <br />Maintenance Task <br />Frequency of Task <br />1 <br />Inspect for standing water, sediment, trash and debris. <br />Monthly during rainy season <br />2 <br />Remove sediment, trash and debris from sedimentation <br />As needed <br />basin, riser pipe and filter bed, using vactor truck method. <br />Dispose of sediment, trash, filters and debris properly. <br />3 <br />Ensure that manufactured treatment measure drains <br />After major storm events and as <br />completely within five days. <br />needed. <br />4 <br />Inspect outlets to ensure proper drainage. <br />Monthly during rainy season, or as <br />needed after storm events <br />5 <br />Follow manufacturers guidelines for maintenance and <br />As per manufacturer's specifications. <br />1 cartridge replacement. <br />' Attached site plan must match the site plan exhibit to Maintenance Agreement. <br />2, ��. n. ���.w.,,.._... .a.r...._..a._.�,�.��.�..��,... Page 1 <br />NDS Approved 1715/07 <br />Page 22 of 24 <br />REV: 08 -17 -18 PR <br />ATTY /AGR.2018.195 /Kaiser MOS2 - STMMA <br />