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EXHIBIT C <br />Bioretention Area' Maintenance Plan for <br />Kaiser Foundation Hospitals <br />Redwood City Medical Center <br />July 3, 2018 <br />Project Address and Cross Streets: 1100 <br />Veterans Boulevard. Redwood ON. CA 94063- <br />'. ?n7F r�rncc throat YAfalnnh <br />8faretention areas function as soft andpiant- <br />wsed fifratbr) devices chat remove powtants <br />through a variety of phystcaf, boiogkal, and <br />chernieal treatment processes. These facAies <br />normaiy consist of a grass utter 6UP, sand :tea, <br />pondng area, organic fayer or rrwkh Iayer, <br />pfantdng .5 ail, and plants <br />Assessor's Parcel No.: 053-202-140,053-204- <br />050. 052-376-030 <br />53-202-140,053-204- <br />050.052-376-030 <br />Property O•Amer: Kaiser Foundation Hospitals <br />Phone No.: 650-299-3048 <br />Designated Contact: Narsimha Irdnki. SSA <br />Phone No.: 650-299-3254 <br />Mailing Address: 901 Marshall Street, Floor 3 <br />Redwood ON CA 94063 <br />The property contains ten (19) bioretention area(s), located as described below and as <br />shown in the attached site plane. <br />• Bioretention Area No.1 —8 are located in Parking Lot E-1. <br />• Biorentione area No. 9 is located at hospital drop-off area <br />• Bio rention Area No. 10 is located in Parking Lot N-1 . <br />• Bioretention Area No. 11-17 are located near MOB2. <br />• Bioretention Area No.1849 are located near Cypress Building. <br />1. 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 />Table 1 <br />Routine Maintenance Activities for Bioretention Areas <br />Na. Maintenance Task <br />1 Remail a obstructions, dehhs and trash from hioretention <br />area and dispose of properly <br />2 Inspect bioretention area to ensure that it drains between <br />storms and within five days atter rainfall. <br />3 Inspect inlets for channels soil exposure or other <br />evidence of erosion. Clear obstructions and remove <br />sediment. <br />4 Remove and replace all dead and diseased vegetation. <br />Frequency of Task <br />M nrdhy, or as needed after storm <br />events <br />M Why, or as needed after Storm <br />events <br />M onthy, or as needed after storm <br />events <br />Twice ayear <br />6.1.F. - Page 79 <br />1 Hiorel.enkm arcas include linear treatment measures designed to filter eater through biolreatment soils. A biordention <br />area that has no vwterproof lin er beneath it and has a raised underdrain in the uiderlyrng rock layer to promote <br />infiltratim,as shown in Swoon 5.1 ofthe C.3 Technical Guidance, may also be called a"bioinfiltaationarea". <br />'— Attached site plan must matdr the site plan udiibit to Maintenance Agreement., <br />Page 1 Ex47ibit C <br />iAYl'11iWIlINOA GTL4vnThrnlw...lWyearlm�. eex�w a*rm�.e.rpvra�¢ens4Pld�y6y o�am- <br />Page 18 of 24 <br />REV: 08-17-18 PR <br />ATTYIAGR.2018.195IKaiser MO132 - STMMA <br />