RFI - Attachment H - Stormwater Management Plan_Issue C_

2.4 Maintenance methods

2.4.1	Minor maintenance/inspection (twice a year)

Minor maintenance typically will involve the steps below, however if it appears that a spill of some type has occurred, the local hazard
control agency and Stormwater360 should be notified immediately.


Steps for Minor Maintenance/Inspection

 1   Maintenance to be performed by a skilled worker familiar            6    Take notes about the external and internal condition. This
     with StormFilter units.                                                  includes inspecting pit penetrations, walls, lids, ladders
                                                                              and grates etc.
 2   If applicable, set up safety equipment to protect
     pedestrians from fall hazards presented by open access              7    Give particular attention to recording the level of
     covers. Also set up appropriate safety equipment for                     sediment build-up on the floor of the vault and on top
     work near roadways.                                                      of the internal components. If flow is occurring, note the
                                                                              level of water and estimate the flow rate per drainage
 3   Inspect the external condition of the unit and take notes
                                                                              pipe. Record all observations.
     concerning defects/problems.
                                                                         8    Remove large loose debris and litter using a pole with a
 4   Open the access covers to the vault and allow the system
                                                                              grapple or net on the end.
     to air out for 5-10 minutes.
                                                                         9    Close and fasten the access cover, and remove
 5   Without entering the vault, inspect the inside of the
                                                                              safety equipment.
     unit, including components.
                                                                         10   Finally, make notes about the local drainage area relative
                                                                              to ongoing construction, erosion problems, or high
                                                                              loadings of other materials to the system.



                                                                                In the case of a spill, workers should abort
                                                                                 maintenance activities until the proper guidance
                                                                                 has been obtained.




                                                                                              Stormwater360 Operations and maintenance   23