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I <br /> NO.5-CATCH BASINS AND MANHOLES <br /> Maintenance Defect or Problem Condition When Maintenance Is Needed Results Expected When <br /> Component Maintenance Is Performed <br /> Structure Sediment Sediment exceeds 60%of the depth from the Sump of catch basin contains no <br /> bottom of the catch basin to the invert of the sediment <br /> lowest pipe into or out of the catch basin or is <br /> within 6 inches of the invert of the lowest pipe <br /> into or out of the catch basin. <br /> Trash and debns Trash or debris of more than'Y cubic foot which No Trash or debris blocking or <br /> is located immediately in front of the catch basin potentially blocking entrance to <br /> opening or is blocking capacity of the catch basin catch basin. <br /> by more than 10%. <br /> Trash or debris in the catch basin that exceeds No trash or debns in the catch basin <br /> the depth from the bottom of basin to invert the <br /> lowest pipe into or out of the basin. <br /> Dead animals or vegetation that could generate No dead animals or vegetation <br /> odors that could cause complaints or dangerous present within catch basin. <br /> gases(eg..methane). <br /> Deposits of garbage exceeding 1 cubic foot in No condition present which would <br /> volume. attract or support the breeding of <br /> insects or rodents <br /> Damage to frame Corner of frame extends more than%inch past Frame is even with curb. <br /> and/or top slab curb face into the street(If applicable). <br /> Top slab has holes larger than 2 square inches or Top slab is free of holes and cracks. <br /> cracks wider than%inch. <br /> Frame not sitting flush on top slab.i.e., Frame is sitting flush on top slab. <br /> separation of more than 14 inch of the frame from <br /> the top slab. <br /> Cracks in walls or Cracks wider than h inch and longer than 3 feet. Catch basin is sealed and <br /> bottom any evidence of soil particles entering catch structurally sound. <br /> basin through cracks.or maintenance person <br /> judges that catch basin is unsound. <br /> Cracks wider than Y,inch and longer than 1 foot No cracks more than./ inch wide at <br /> at the joint of any inlet/outlet pipe or any evidence the joint of inleVoutlet pipe. <br /> of soil particles entenng catch basin through <br /> cracks. <br /> Settlement/ Catch basin has settled more than 1 inch or has Basin replaced or repaired to design <br /> misalignment rotated more than 2 inches out of alignment. standards. <br /> Damaged pipe joints Cracks wider than'4-inch at the joint of the No cracks more than%-inch wide at <br /> inlet/outlet pipes or any evidence of soil entering the joint of inleVoutlet pipes. <br /> the catch basin at the joint of the inlet/outlet <br /> pipes. <br /> Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of <br /> pollution as oil,gasoline,concrete slurries or paint according to applicable regulations. <br /> Source control BMPs implemented if <br /> appropriate. No contaminants <br /> present other than a surface oil film. <br /> Inlet/Outlet Pipe Sediment Sediment filling 20%or more of the pipe. Inlet/outlet pipes clear of sediment. <br /> accumulation <br /> Trash and debns Trash and debns accumulated in inlet/outlet No trash or debns in pipes. <br /> pipes(includes floatabies and non-floalables). <br /> Damaged Cracks wider than%inch at the joint of the No cracks more than Y.-inch wide at <br /> inlet/outlet pipes or any evidence of soil entenng the joint of the inieVoutlet pipe. <br /> at the joints of the inlet/outlet pipes. <br /> 111 <br /> NO.5-CATCH BASINS AND MANHOLES <br /> Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When <br /> Component Maintenance is Performed <br /> Metal Grates Unsafe grate opening Grate with opening wider than'/,inch. Grate opening meets design <br /> (Catch Basins) standards. <br /> Trash and debns Trash and debns that is blocking more than 20% Grate free of trash and debris. <br /> of grate surface. footnote to guidelines for disposal <br /> Damaged or missing Grate missing or broken member(s)of the grate Grate is in place and meets design <br /> Any open structure requires urgent standards. <br /> maintenance. <br /> Manhole Cover/Lid Cover/lid not in place Cover/lid is missing or only partially in place Cover/lid protects opening to <br /> Any open structure requires urgent structure <br /> maintenance. <br /> Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. <br /> Not Working maintenance person with proper tools.Bolts <br /> cannot be seated Self-locking cover/lid does not <br /> work. <br /> Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and <br /> Remove cover/lid after applying 80 lbs.of lift. reinstalled by one maintenance <br /> person <br /> 1 <br />