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6.113. - Page 60 of 64 <br />Flow -Through Planter Maintenance Plan Date of Inspection: <br />Property Address: Treatment Measure No.: <br />Table 1 <br />Routine Maintenance Activities for 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. Treat vegetation using preventative and low -toxic <br />methods. <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 at appropriate depth (3 inches per soil specifications) <br />Monthly <br />and replenish as necessary. <br />4 <br />Check that soil is at appropriate depth. Till or replace soil as necessary to <br />Before wet season and as <br />maintain a minimum of 6 inches between top of mulch and overflow weir. <br />necessary <br />5 <br />Remove accumulated sediment, litter and debris from flow-through planter <br />Monthly during the wet season, <br />and dispose of properly. Confirm that no clogging will occur and that the box <br />and as needed atter storm <br />will drain within three to four hours. Test with garden hose to confirm that <br />events <br />the planter will drain within three to four hours. <br />6 <br />Inspect NDS bubblers to ensure flow is unimpeded into the planter. Remove <br />Before the wet season, and as <br />debris and repair as necessary to allow the bubblers to properly distribute <br />necessary <br />flow. <br />7 <br />Inspect overflow inlet and pipe to ensure that it will safely convey excess <br />Monthly during the wet season, <br />flows to storm drain. Repair or replace any damaged or disconnected <br />and as needed after storm <br />piping, <br />events <br />8 <br />Inspect flow-through planter, including the cleanout, to ensure that box is <br />Annually <br />structurally sound (no cracks or leaks). Repair as necessary. <br />9 <br />Inspect flow-through planter using the attached inspection checklist. <br />Monthly, or after large storm <br />events, and after removal of <br />accumulated debris or material <br />ll. Prohibitions <br />The use of pesticides and quick release fertilizers shall be minimized, and the principles of <br />integrated pest management (IPM) followed: <br />1. Employ non -chemical controls (biological, physical and cultural controls) before using <br />chemicals to treat a pest problem. <br />2. Prune plants properly and at the appropriate time of year. <br />3. Provide adequate irrigation for landscape plants. Do not over water. <br />4. Limit fertilizer use unless soil testing indicates a deficiency. Slow-release or organic <br />fertilizer is preferable. Check with municipality for specific requirements. <br />5. Pest control should avoid harming non -target organisms, or negatively affecting air and <br />water quality and public health. Apply chemical controls only when monitoring indicates <br />that preventative and non -chemical methods are not keeping pests below acceptable <br />levels. When pesticides are required, apply the least toxic and the least persistent <br />pesticide that will provide adequate pest control. Do not apply pesticides on a <br />prescheduled basis. <br />6. Sweep up spilled fertilizer and pesticides. Do not wash away or bury such spills. <br />7. Do not over apply pesticide. Spray only where the infestation exists. Follow the <br />manufacturer's instructions for mixing and applying materials. <br />8. Only licensed, trained pesticide applicators shall apply pesticides. <br />9. Apply pesticides at the appropriate time to maximize their effectiveness and minimize <br />the likelihood of discharging pesticides into runoff. With the exception of pre -emergent <br />pesticides, avoid application if rain is expected. <br />K: NM176347_120 ECR, RWCIDOCS\06-Design lD-Stormwate:_SystemM-Stm AyneementlC2_BioretentionMaintenatnceCliecklist.doc Page 2 <br />ATTYlAGR.2020.299lPinn Bros (Page 18 of 21) 89 <br />