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6.A. - Page 58 of 81 <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. <br />Maintenance Task <br />Frequency of Task <br />1 <br />Evaluate health of trees and groundcover. Remove and replace all dead <br />Twice a year <br />and diseased vegetation. <br />2 <br />Maintain vegetation and the irrigation system. Prune and weed to keep flow- <br />As needed <br />through planter neat and orderly in appearance. <br />3 <br />Check that mulch is 3" deep and replenish as necessary. It is recommended <br />As needed <br />that composted arbor mulch be applied once per year to maintain the 3" <br />depth in all bare soil areas except within six inches of tree trunks. <br />4 <br />Check that soil is at appropriate depth. Till or replace soil with the approved <br />Before wet season and as <br />biotreatment soil mix as necessary to maintain a minimum of 6 inches <br />necessary <br />between top of mulch and overflow weir. <br />5 <br />Remove accumulated sediment, litter and debris from flow-through planter <br />Before wet season and as <br />and dispose of properly. Confirm that no clogging will occur and that the box <br />necessary <br />will drain within three to four hours. <br />6 <br />Inspect flow-through planter to ensure that there are no clogs. Test with <br />Monthly during the wet season, <br />garden hose to confirm that the planter will drain within three to four hours. <br />and as needed after storm <br />events <br />M <br />ATTY/AGR.2019.266/211/217 Vera (Page 15 of 38) <br />