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I ' <br /> I <br /> I , No. 15—StorrnfhiterTr' (leaf compost filter) <br /> Tarntenance Defcitl , L ;sue Cq}it!itiott When Malntenanc@ fs YResutte ExpectedkWhen <br /> Com o ent - 'p i f , Ieec.ed s�, Mai,-,.:ance s•-,—,_. rted ## <br /> Below Ground'` Sediment Sediment depth exceeds 0,25-inches. No sediment deposits which <br /> Vault Accumulation on would impede permeability of <br /> Media. the compost media. <br /> I <br /> Sediment Sediment depth exceeds 6-inches in first No sediment deposits in vault <br /> botto Accumulation in chamber, m of first chamber. <br /> Vault <br /> I Trash/Debris Trash and debris accumulated on <br /> compost filter bed. Trash and debris removed from <br /> Accumulationthe compost filter bed. <br /> Sediment in Vlhen drain pipes,clean-outs, become Sediment and debris removed. <br /> I <br /> Drain full with sediment and/or debris. <br /> Pipes/Clean- <br /> Outs <br /> Damaged Pipes Any part of the pipes that are crushed or Pipe repaired and/or replaced. <br /> I damaged due to corrosion and/or <br /> settlement. <br /> Access Cover Cover cannot be opened;one person Cover repaired to proper <br /> Damaged/Not cannot open the cover using normal working specifications or <br /> I Working lifting pressure,corrosion/deformation of replaced. <br /> cover. <br /> Vault Structure Cracks wider than 1/2-inch or evidence Vault replaced or repairs made <br /> I Includes Cracks of soil particles entering the structure so that vault meets design <br /> in Wall, Bottom, through the cracks, or specifications and is structurally <br /> Damage to maintenance/inspection personnel sound. <br /> Frame and/or determine that the vault is not structurally <br /> Top Slab sound. <br /> I Cracks wider than 1/2-inch at the joint of Vault repaired so that no cracks <br /> any inlet/outlet pipe or evidence of soil exist wider than 1/4-inch at the <br /> particles entering through the cracks. joint of the inlet/outlet pipe. <br /> I Baffles Baffles corroding,cracking warping, Baffles repaired or replaced to <br /> and/or showing signs of failure as specifications. <br /> determined by maintenance/inspection <br /> person. <br /> I Access Ladder Ladder is corroded or deteriorated,not Ladder replaced or repaired and <br /> Damaged functioning properly, not securely meets specifications,and is <br /> attached to structure wall, missing rungs, safe to use as determined by <br /> cracks,and misaligned. inspection personnel. <br /> I <br /> Below Ground Compost Media Drawdown of water through the media Media cartridges replaced. <br /> Cartridge Type takes longer than 1 hour,and/or overflow <br /> occurs frequently. <br /> I Short Circuiting Flows do not properly enter filter Filter cartridges replaced. <br /> cartridges. <br /> I <br /> I <br /> I <br /> February 2005 Volume V—Runoff Treatment BMPs 4-47 <br />