3900 BROADWAY BASE FILE 2016-01-01 MF Import

CITY OF EVERETT STORMWAI tre MANAGEMENT MANUAL Catch Basins Date DnlnaBe Malntenance Activltlea and Condltfons Sy�t�m Frequency F�aturs � � � � Problem Condltlonn to Chaek For That Should Exist A General 'Dump no Stendl or stamo should be visibla and easily Waming signs(e.g., 'Dump No VJaste-Orelns pollufants"Stencil read to Stream")shall be painted or embossed on or stemp nol visible or adjacen,to all slorm drein intets. M,S General Tresh and Debns Trash or debns whlch is located immediately in No 12sh or debns located immediately in hont of Ihe wlch basin opening or is blocking front o(catch basin or on grare opening. inletting capaciry of 1he basin by more then 10 percenl. M General Trash and Debrix Trash or debns(in the basin)lhat exceeds 60 No trash or debns in lhe catch basm. percert of Ihe sump depth ae measured hom the bottom of basin to invert of the lowest pipe into or oul of the basin,but in no case less Ihen a minimum of 6 inches dearance from the debris suriace to the inveR ot the lowesl pipe. M General Tresh and Dabns Trash or dabns in any inlel or outlet pipe Inlet and outlet pipes her.of irash or de6ns. blodcing more lhan one-third of its heighl. M General Trash and Debns Dead animals or vegelation Ihet could generate No dead arimals or vegetation present within odors that could cause compleints or dangerous the catch basin. gases(e.g.,methane). �d General Sediment Sediment(in Ne bas�n)thal exceeds 60 percen� No sediment in Ihe catch basin 01 the sump depih as measured hom Iho bottom ot basin to invert ot the lowest pipe into or out of the hasin, but in no case less than a minimum of 6 fnches Gearance kom the sediment suAace to the invert ot Ihe lowest pipe. A General Slrudure Damage Top slab hes holes larger than 2 square inches Top slab is free ol holes and uacks. to Frame andlor or aacks wider Ihan ane-fourth inch(intenl is to Top Slab make sure no matenal is mm�ing into basin), Appendices F-14