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No. 5-Catch Basins <br /> Maintenance Defect. Conditions When Maintenance is deeded Results'Etpecteci.When <br /> Component <br /> inte[tgnce is <br /> .rfamed <br /> Contamination See"Detention Ponds"(No. 1). No pollution present. <br /> and Pollution <br /> Catch Basin Cover Not in Cover is missing or only partially in place. Catch basin cover is <br /> Cover Place Any open catch basin requires maintenance. closed <br /> Locking Mechanism cannot be opened by one Mechanism opens with <br /> Mechanism maintenance person with proper tools. Bolts proper tools. <br /> Not Working into frame have less than 1/2 inch of thread. <br /> Cover Difficult One maintenance person cannot remove lid Cover can be removed by <br /> to Remove after applying normal lifting pressure. one maintenance person. <br /> (Intent is keep cover from sealing off access <br /> to maintenance.) <br /> Ladder Ladder Rungs Ladder is unsafe due to missing rungs, not Ladder meets design <br /> Unsafe securely attached to basin wall, standards and allows <br /> misalignment, rust,cracks,or sharp edges. maintenance person safe <br /> access. <br /> Metal Grates Grate opening Grate with opening wider than 7/8 inch. Grate opening meets <br /> (If Applicable) Unsafe design standards. <br /> Trash and Trash and debris that is blocking more than Grate free of trash and <br /> Debris 20%of grate surface inletting capacity. debris. <br /> Damaged or Grate missing or broken member(s)of the Grate is in place and <br /> Missing. grate. meets design standards. <br /> No. 6- Debris Barriers (e.g., Trash Racks) <br /> Maintenance Defect Cam»• 0t11, 1ss t 0 r�` Oe -Men iat p s P n <br /> Goat on <br /> ...... <br /> Fo General Trash and Trash or debris that is plugging more Barrier cleared to design flow <br /> Debris than 20%of the openings in the barrier. capacity. <br /> Metal Damaged/ Bars are bent out of shape more than 3 Bars in place with no bends more <br /> Missing inches. than 3/4 inch. <br /> Bars. <br /> Bars are missing or entire barrier Bars in place according to design. <br /> missing. <br /> Bars are loose and rust is causing 50% Barrier replaced or repaired to <br /> deterioration to any part of barrier. design standards. <br /> Inlet/Outlet Debris barrier missing or not attached to Barrier firmly attached to pipe <br /> Pipe pipe <br /> February 2005 Volume V-Runoff Treatment BMPs 4-37 <br />