Changes

|Surface ponding remains for > 48 hours or surface infiltration rate is < 15 mm/h.

|Surface ponding remains for > 48 hours or surface infiltration rate is < 15 mm/h.

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*Remove sediment as described above. Core aerate (for grass swales); or remove [[stone]], sediment and [[vegetation|plant]] cover and till 5 cm of yard waste compost into the exposed planting [[Soil groups|soil]] to a depth of 20 cm; or remove and replace the uppermost 15 cm of material with planting soil that meets design specifications. Test [[Infiltration: Testing surface infiltration rate]] to confirm it has been restored to > 15 mm/h. Replace stone and plants (re-use/transplant where possible).

*Remove sediment as described above. Core aerate (for grass swales); or remove [[stone]], sediment and [[vegetation|plant]] cover and till 5 cm of yard waste compost into the exposed planting [[Soil groups|soil]] to a depth of 20 cm; or remove and replace the uppermost 15 cm of material with planting soil that meets design specifications. Test [[Infiltration: Testing|surface infiltration rate]] to confirm it has been restored to > 15 mm/h. Replace stone and plants (re-use/transplant where possible).

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|Damage to filter bed or slide slope is present (e.g., [[erosion]] rills, animal burrows, sink holes, ruts)

|Damage to filter bed or slide slope is present (e.g., [[erosion]] rills, animal burrows, sink holes, ruts)