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No. 12 — WeNaults <br />Malntenanco <br />Component <br />('enerel <br />/lugirst 2001 <br />Dclrtct <br />Trash/Dehris <br />Accumulallon <br />Sedimenl <br />Acr,umulalion in <br />Vault <br />�aniayod Pipes <br />Access Covr.r <br />Damac�od/Nol <br />✓Vurkinc� <br />Vanlil�ition <br />Yault Siructurc <br />Dama�c - <br />Includes Cracks <br />in Walls 6ottom, <br />Damage to Frame <br />end�or Tc p Slab <br />f3ames <br />Condilion When Maintenence Results Exrocted When <br />fa Needod Maintanance is Per}orm¢d <br />Trash and detris accumulaled <br />in vault, pipe � •r inleVoutlat <br />(inGudes floatables end non- <br />Iloalables). <br />Sedimenl accumulalion In vault <br />bottom oxceec'c the depth of th� <br />sedimenl zona p!us 6�Inches. <br />InloVoidlot piping damaged or <br />broken and in need of repair. <br />Cover cannot b�t opened or <br />removod, especially by one <br />person. <br />Venlila�ion aroa blockad or <br />plugged. <br />Ma in lenance/lnspection <br />personnel determino Iha1 iho <br />vaull is no� siructurally sound. <br />Cracks widar Ihan 1l2inch a� <br />thr, joint of any InleVoidlel pipo <br />or evfdenr.e of soil particles <br />enlcring �hrough tho cracks. <br />Baffles corroding, crarking, <br />warping end/or showinc� signs o( <br />failuro as delermined by <br />mainlenancelnspection staff. <br />Access Ladder I Ladder is mrrafed or <br />Dama�e deleriora!ed, nol (unctioninn <br />properly, not atter ned lo <br />slrucWrc wall, missing rungs, <br />has cracks and/or miseligned. <br />ConfineA spar.r, warning sign <br />missin� <br />Remove trash and debris from vautt. <br />Remove seJ�ment from vault. <br />Pipo repaired and/or replaced. <br />Pipe repairecl or replaced to proper <br />worhing specifications. <br />Blocking material removed or cleared <br />Irom ventilalion erafl. A specifiad °/a <br />ol thQ vaull sudaco area must provide <br />ven�ila!ion to ihe vaul! Inlenor (sne <br />design specifications!. <br />Vault replaced or repairs made so <br />Ihat vault mcets dosign spr,r.ifications <br />and is structurally sound. <br />Vault repaired su ihat no cracks exist <br />wider ihan 1/4�incii at the loint of Ihe <br />inloVoull�t pipe. <br />Beflles repaired or replaced to <br />specifications. <br />Laddar replaced or repaired lo <br />spacifications, nnd is safo to use es <br />determined by Inspection personnel. <br />Replaco sign warninc� d confined <br />space eniry requirements. Ladder <br />and en�ry noli0calion compfies with <br />OSHA standards. <br />Volume V— RunoH Treatment BMPs <br />4-43 <br />� <br />