Changes

[[File:MaintenancePICP.png|thumb|300px|Vehicle used for vacuum maintenance of permeable pavements (Source: STEP). ]]

[[File:MaintenancePICP.png|thumb|300px|Vehicle used for vacuum maintenance of permeable pavements (Source: STEP). ]]

[[Inspections and maintenance#Practice-specific Inspection and Maintenance|Practice-specific maintenance guides]] are available for each LID BMP. General maintenance considerations for filter-based LIDs include:

[[Inspections and maintenance#Practice-specific Inspection and Maintenance|Practice-specific maintenance guides]] are available for each LID BMP. General maintenance considerations for filter-based LIDs include:

*'''Inspection and maintenance frequency''': Routine inspections and maintenance are needed to assess and resolve issues, such as [[Sedimentation|sediment]] buildup. [[Maintenance, Rehabilitation and Repair|Frequency of visits]] depends on a variety of factors. LID BMP designs should include safe access for maintenance and inspection crews and confined space entry procedures should be considered for subsurface systems.

*'''Inspection and maintenance frequency''': Routine inspections and maintenance are needed to assess and resolve issues, such as [[Sedimentation|sediment]] buildup. [[Maintenance, Rehabilitation and Repair|Frequency of visits]] depends on a variety of factors. LID BMP designs should include safe access for maintenance and inspection crews and confined space entry procedures should be considered for subsurface systems. [[Monitoring]] should also be undertaken to assess function.

*'''Sediment removal''': Filters can become [[clogging|clogged]] with sediment, organic material, and trash, reducing flow capacity and treatment performance. When solid particles form a film on the filter's surface or accumulate within the media channels, higher pressure is needed to drive stormwater through the filter. Eventually, a point is reached at which flow through the treatment system must be redirected to another flow path (usually a bypass within or upstream of the system). Regular vacuuming or manual removal of accumulated materials is commonly required.  

*'''Sediment removal''': Filters can become [[clogging|clogged]] with sediment, organic material, and trash, reducing flow capacity and treatment performance. When solid particles form a film on the filter's surface or accumulate within the media channels, higher pressure is needed to drive stormwater through the filter. Eventually, a point is reached at which flow through the treatment system must be redirected to another flow path (usually a bypass within or upstream of the system). Regular vacuuming or manual removal of accumulated materials is commonly required.  

*'''Media replacement''': Filter bed media can lose effectiveness over time due to clogging, chemical saturation, erosion, animal burrows, and compaction. Media may need to be replaced, regraded, or core aerated.

*'''Media replacement''': Filter bed media can lose effectiveness over time due to clogging, chemical saturation, erosion, animal burrows, and compaction. Media may need to be replaced, regraded, or core aerated.