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| ==Tips to Preserve Basic BMP Function== | | ==Tips to Preserve Basic BMP Function== |
| *Maintain grading of the filter bed (or [[Vegetated filter strips|grass filter strip]] if present) at [[curb cut]] [[inlets]] so at least 5 cm of the back of the curb is visible through regular sediment removal and regrading. | | *Because the risk of compaction is higher when topsoil is saturated, any maintenance tasks involving vehicle (e.g., ride mower) or foot traffic on the filter bed should not be performed during wet weather. |
| *To avoid over-compaction of the [[Bioretention: Filter media|filter media soil]], any maintenance tasks involving vehicle or foot traffic on the filter bed should not be performed during wet weather.
| | *Use push mower to maintain enhanced swales with [[grass]] as [[vegetation]] cover or the lightest ride mower equipment available to minimize compaction of the filter bed. |
| *For bioretention with sod (i.e., [[Turf|turf grass]]) as [[vegetation]] cover, maintain with a push mower or the lightest mulching ride mower available and core aerate and dethatch annually in the spring to help maintain permeability. | | *Use a mulching mower to maintain enhanced swales with grass as vegetation cover or leave clippings on the surface to help replenish organic matter and nutrients in the topsoil. |
| *Pruning of mature [[trees]] should be performed under the guidance of a Certified Arborist. | | *Pruning of mature [[trees]] should be performed under the guidance of a Certified Arborist. |
| *Woody [[vegetation]] should not be planted or allowed to become established where snow will be piled/stored during [[Winter]]. | | *Woody vegetation should not be planted or allowed to become established where snow will be piled/stored during winter. |
| *Removal of sediment from the filter bed surface should be done with rake and shovel, or vacuum equipment to minimize plant disturbance. If a small excavator is to be used, keep it off the BMP footprint to avoid damage to side slopes/embankments and over-compaction of the [[filter media]]. | | *Removal of sediment accumulated on the filter bed surface should be performed by hand with rake and shovel, or vacuum equipment where feasible. If a small excavator is the chosen method, keep the excavator off the BMP footprint to avoid damage to side slopes/embankments and compaction of the [[topsoil]]. |
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| ==Routine Maintenance - Key Components and I&M Tasks== | | ==Routine Maintenance - Key Components and I&M Tasks== |