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E ER Ell NS MS EN MO <br /> CITY OF EVERETT STORMWATER MANAGEMENT MANUAL <br /> Filterra® <br /> Also check DOE website and manufacturer guidelines for updates to O&M requirements. <br /> Date <br /> Drainage <br /> System Maintenance Activities and Conditions <br /> Frequency Feature ✓ ✓ ✓ I Problem Conditions to Check For That Should Exist <br /> M Inlet Excessive Sediment Accumulated sediments or trash impair free Inlet should be free of obstructions allowing <br /> or Trash flow of water into Filterra free distributed flow of water into Filterra. <br /> Accumulation Sediments and/or trash should be removed. <br /> M Mulch Trash and Floatable Excessive trash and/or debris accumulation. Minimal trash or other debris on mulch cover. <br /> Cover Debris Accumulation Trash and debris should be removed and • <br /> mulch cover raked level. <br /> M• Mulch Pending of Water on Pending in unit could be indicative of clogging Stormwater should drain freely and evenly <br /> Cover Mulch Cover. due to excessive fine sediment accumulation or through mulch cover. Recommend contact <br /> spill of petroleum oils. manufacturer and replace mulch or soil if <br /> necessary. <br /> M Vegetation Plants not Growing Soil/mulch too wet,evidence of spill. Incorrect Plants should be healthy and pest free. <br /> or in Poor Condition. plant selection. Pest infestation. Vandalism to Contact manufacturer for advice. <br /> plants. <br /> M Vegetation Plant Growth Plants should be appropriate to the species and Trim/prune plants in accordance with <br /> Excessive location of Filterra. manufacturers recommendations. <br /> A Structure Structure has Cracks wider than one-half inch or evidence of Vault repaired or replaced so that vaults <br /> Cracks in Wall, soil particles entering the structure through the meets design specifications and is <br /> Bottom,and cracks,or maintenance/inspection personnel structurally sound. <br /> Damage to Frame determine that the vault is not structurally <br /> and/or Top Slab. sound. <br /> A Structure Structure has Cracks wider than one-half inch at the joint of Vault repaired so that no cracks exist wider <br /> Cracks at the Joint any inlet/outlet pipe or evidence of soil particles than one-fourth inch at the joint of inlet/outlet <br /> of any Inlet/Outlet entering through the cracks pipe. <br /> Pipe. <br /> If you are unsure whether a problem exists,please contact a professional engineer or the manufacturer's representative. <br /> Comments: <br /> Key: (M) Monthly from October through April. <br /> (A) Once in late summer(preferably September). <br /> (S) After any major storm (use 1 inch in 24 hours as a guideline). <br /> Appendices <br /> F-50 <br />