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6.3.A. - Page 63 <br /> Flow-Through Planter Maintenance Plan for <br /> Winslow Street Development <br /> 815 Hamilton Street &840 Middlefield Road <br /> 10-02-15 <br /> "= ° 1 iir., r Project Address and Cross Streets: <br /> j <br /> I 815 Hamilton Street& 840 Middlefield Road, Redwood <br /> - 7 fi ,,. City, CA 94063 <br /> Assessor's Parcel No 052-365-060, -080, -090, -100 <br /> ikit:'.,--f-IL, - II.::,,,: .;--, ,; <br /> Property Owner: Hamilton &Winslow Properties, LLC <br /> 4. \ �: Phone No 650-364-4933 <br /> Flow-through planters are Designated Contact: Robert Dean <br /> designed to treat and <br /> temporarily detain runoff without <br /> allowing seepage Into the <br /> underlying soil. They typically <br /> receive runoff via downspouts <br /> leading from the roofs of <br /> adjacent buildings. <br /> The property contains two(2)flow-through planter(s), located as described below and as shown In <br /> the attached site plan: <br /> • Flow-Through Planter No. 1 Is located at along the Western and Northern edges of <br /> the 3rd floor open roof. <br /> • Flow-Through Planter No.2 is located in the middle of the 3rd floor open roof. <br /> I. Routine Maintenance Activities <br /> The principal maintenance objectives are to ensure that water flows unimpeded Into the <br /> flow-through planter and landscaping remains attractive in appearance. Table 1 shows the <br /> routine maintenance activities, and the frequency at which they will be conducted. <br /> Table 1 <br /> Routine Maintenance Activities for Flow-Through Planters <br /> No. Maintenance Task Frequency of Task <br /> 1 Evaluate health of trees and groundcover. Remove and replace all dead Twice a year <br /> and diseased vegetation. Treat vegetation using preventative and low-toxic <br /> methods. <br /> 2 Maintain vegetation and the Irrigation system.Prune and weed to keep flow- As needed <br /> through planter neat and orderly in appearance. <br /> 3 Check that mulch is at appropriate depth(3 inches per soil specifications) Monthly <br /> and replenish as necessary. <br /> 4 Check that soil is at appropriate depth. Till or replace soil as necessary to Before wet season and as <br /> maintain a minimum of 6 Inches between top of mulch and overflow weir. necessary <br /> 5 Remove accumulated sediment,litter and debris from flow-through planter Before wet season and as <br /> and dispose of properly. Confirm that no clogging will occur and that the box necessary <br /> will drain within three to four hours. <br /> 6 Inspect flow-through planter to ensure that there are no clogs. Test with Monthly during the wet season, <br /> garden hose to confirm that the planter will drain within three to four hours. and as needed after storm <br /> events <br /> ,.rare; M-1013,47:440 ,ta t■f �.R CS b,lis,w1Vit•a . :∎NMAi to:,[tnklv,k. Page 1 NDS Appr <br /> ATTYIAGR.2015.2261Hamiiton&Winslow Properties, LLC <br />