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lY�3F1/2003 16:30 42577pp409 TFIE MCPWUGHTOId GROUP <br />9. Remove the used cartridges (250 Ibs. each) (rom the vault. <br />PAGE 11 <br />Care must be used lo avold darnaging lhe cartridges during removal and inslallalion. The cost o( <br />repairing componenLs damaged during maintenance will be the responsibilily of Iho owner unless <br />Slormwaler Managemsnt periorms ihe mainlenance activities and damrage is not relaled to <br />discharges to lhe system. <br />10. Set {he used cartridge aside or load onlo lhe hauling truck. <br />11. Continue steps U through 10 unlll all cartridges liave baen rernoved. <br />12. Remove deposiled sediment from ihe floor of the vault and, if large �mounts are present, from ihe <br />forebay_ This c;an usually be accompiished by sl�oveliny lhe sediment into con(ainers, which, <br />once full, are Hfted mechanically (rom the vault and placed onto Ihe hauling truck. In some cases <br />of extrorne sediment loading, especially if tho sediment fs saluraled, a���aclor truck may be <br />required. <br />13. Once lfie sediments are romoved, assess the condilfon of the vauit and ihe condition of ihe <br />manifold and wnnec(ors. The connectors are short sections o( 2-lnch schedule 40 PVC, or <br />threaded schedule a0 PVC that should protrude above the floor of the v�uit. <br />a. If roquirod, appiy a liyht coatfng of FDA approved silicon grease to the outslde uf the exposed <br />portion of ihe connectors, This ehsures a watertight conneclion belween the cartridge and <br />ihe drainage pipe. <br />b. Replace any damaged connectors. <br />14. Using the boom, crane, or tripod, lower ond install the new carlridges. once again, taice c:are not <br />io damage conneclions. <br />15. Close and fasten the door. <br />iG. Remove safely equlpment, <br />17. Make notes about the locai drainage aiea relative to ongoing construcl�on, eroslon problems, or <br />hfgh loadinps of olher materials to the system. <br />10. Finally, dispose of lhe residual materials in accordance wilh applica6la regulalions. Malc� <br />arrangemenls to retum lhe used cartridges to Stormwater Management Inc. <br />T 800.54a,4667 F 500.5G1.1271 W www.stormwaterinc.com <br />