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\� \ <br /> � <br /> CITV OF EVERETT STORMWAItR MANAGEMENT MANUAL <br /> Date <br /> Dnlnage <br /> System Meintenance Acdvltles and Conditions <br /> Frequaney Feoture � � ✓ ✓ Problem Canditlons to Check For That Should Exiet <br /> A Menholel SetHemenV If teilure ot basin has created a safery, function, Basin replaceA or repelred to design <br /> Chamber Misalignment ordesignproblem. standards. <br /> M Manholel Contamina6on end Any e��idence ot oil,gasoline,conteminants or No contaminants ar pallutants present. <br /> Chamber Pollufion other pollutants. (Coordinate removaUcleanup with the City of <br /> Everett SuAacs Weter Management 425- <br /> 257-8BB5 andlor DOE Spill Response 800- <br /> 424-8802.) <br /> A Ca+ch Cover�ot in Place Cover is missing or only pariially in place. Any open catch basin requires mainlenance. <br /> Basin Catch basin cover is closed. <br /> Cover <br /> A Catch Lodcing Mechanism�nnot be opened by one Mechanism opens with proper tools. <br /> Basin Mechanism Not maintenanoe pe�son with proper tools. Bolts into <br /> Cover Working Game heve less than one-halHnch of thread. <br /> A Catch Cover Diffiwlt to One meintenance pereon cannot remove lid Caver can be removed by one maintenance <br /> Basin Remove afler appying normal IiRing pressure. person. <br /> Cover pntent is keep cover(rom sealing oB access to <br /> maiMenanca.) <br /> It you are unsure whether a problem exists, please contact a professional engineer. <br /> Key: <br /> (M) Monthly irom Oclober lhrough April. <br /> (A) Once In late summer(preferably September) <br /> (S► After any major storm (use 1 inch in 24 hours as a guideline). <br /> Appendlces <br /> . F-20 <br />