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No. 5 — Catch Basins <br />M�intenance Defact <br />Componcnt <br />rencral Trash & <br />Debris <br />Conditions Wlien Malntenance Is Needed Roaults Expected When <br />Maintanance is <br />performnd <br />Tra<h or debris which Is localeo Immedia�ely No Tr2sh or Jebris localed <br />in fmnl o( Ihe catch basin openinp or is immodiately in front of <br />blocking Inlelling capacity of Iho basin by calch basin or on Arate <br />more �han 10%. opening. <br />Trash or dobris (in thc� basin) Ihal exr.eeAs 60 No trash ar debris in Ihe <br />petcent of the sump depth as meas��reA from calch basin. <br />Ihe bottom of b�sin to invert of the Inwest <br />pipe into or out nf Ihe basin, bul in no case <br />less Ihan a minimum of six inches dearance <br />Irom Iho dobds suAace to �he invr.rt of Ihe <br />��WPS� r�n�, <br />Trash or debris in any inlet or outlot pipe Inlet end outlot pipes free <br />blocking more tlian 1/3 of its height. of trash or debds. <br />Deacl animals or vegntation tha� could No dead animals or <br />generatr odors thal r.outd cause wmplainls vec�e�atlon present within <br />or dangerous gasos (e.g., melhnne). Ihe catch basin. <br />Sr,dimenl Sediii;erd (in Ihc basin) Ih,d exceeds fi0 No sediment in �he catch <br />perconl oi ihe surnp depth as measurcid frorn basin <br />Pie botlom of basin to invcrt of Ihe lowest <br />pipe inlo or oul of Ihn basin, ou� in no case <br />less Cian a minimum of G inch�s dearanco <br />from Ihe sediment suAace lo the invcrt of the <br />lowesl pipa. <br />Strur.turo <br />Damage lo <br />Framc nnd/ur <br />Top S�ab <br />FracUues or <br />Crecks in <br />H�sin Walls/ <br />Bollom <br />Top slab has holes larc�or Ihan 2 square <br />inches or cracks wider than 1/4 Inch <br />(Intent is to mako sure no material is n�nning <br />into basin), <br />Top slab is freo o( holes <br />and cracks. <br />Fmme no� silting flush un top slab, i.e, Frams is sqting flush on <br />separaLon of morF� than 3/4 inch ol lhe Iramo lhe riser nngs nr top slab <br />from Ihe lop elnb. Frame no� securely and firtnly ettach�d. <br />altached <br />Maintenance person judges that struclure fs Basin repiaced or repaireA <br />unsound. lo design standards. <br />Grout fillet has separated or crackeA wider Pi, e is regrouled and <br />�han 1/2 inch end longer Uian 1 lool at �he secure at basin wall. <br />joint of �ny iNeUoullol pipe or any evidence of <br />soil particles eNering catch basin Ihrough <br />cracks. <br />Se111emenU II f�ilure ol basin hes croated a salety, I Basin replacod a repaired <br />Miselignmenl function, or design pioblem. to design standards. <br />Vegetalion Vegelation growing across anA blocking more I No vegetalion b�ocking <br />ihan 10Yo of the basin opaning. opening lo basin. <br />Veootalion c�rowing ir� inleUoullcl pipe Join�s No vegetation or roo� <br />that is morc Ihan six inrhes tall and less Ihan growlh present. <br />six inr.hes apah <br />.._-------- � - - -------------------- ---- _.. <br />4-3fi Volunrc V— Runnlf TreafmPnf BMPs August 2001 <br />J`� <br />