RFI - Attachment H - Stormwater Management Plan_Issue C_

2.1 Types of maintenance
Presently, procedures have been developed for two levels               Inspection/minor maintenance typically involves opening
of maintenance:                                                        the flow restricting valves (to pre-set levels) and cleaning up
                                                                       vegetation and debris. Major maintenance typically includes
•    Inspection and/or minor maintenance
                                                                       cartridge recharging. Major maintenance may involve disposal
•    Major maintenance.                                                of materials that require consideration of regulatory guidelines.
Inspection/minor maintenance activities are combined since             Depending on the particular unit configuration and equipment
the minor maintenance does not require special equipment               used, major maintenance may require an understanding
and typically little or no materials are in need of disposal.          of OSHA rules. Table 1 summarises the primary activities
                                                                       associated with StormFilter maintenance.


Table 1: StormFilter

    Facility component          Maintenance activity        When maintenance                         Expected facility performance
    requiring maintenance                                   activity is required                     after maintaining

    StormFilter cartridges      Litter and                  Floatable objects or other litter        Permanent removal from
    and containment structure   debris removal              is present in the filter. Remove         storm system.
                                                            to avoid hindrance of filtration
                                                            and eliminate unsightly debris
                                                            and litter.

    StormFilter cartridges      Cartridge replacement       Media has been contaminated              New media is able to effectively
    and containment structure   and sediment removal        by high levels of pollutants,            treat stormwater.
                                                            such as after a spill.

    Drainage system piping      Flushing with water         Drainage system is obstructed            Outflow is not restricted.
                                                            by debris or sediment.




                                                                                                Stormwater360 Operations and maintenance   21