Changes

*'''Soil''': Till soil at swales bottom if water does not drain out within 48 hours (swales should drain within 24 hours). Remove sediment build up when the swales volume is reduced by 25 percent.

*'''Soil''': Till soil at swales bottom if water does not drain out within 48 hours (swales should drain within 24 hours). Remove sediment build up when the swales volume is reduced by 25 percent.

*'''Cold Climate Considerations''': In colder climates after spring snow melt, Any collected sand from winter time sanding must be removed. Replacement of damaged vegetation should occur as soon as possible.

*'''Cold Climate Considerations''': In colder climates after spring freshet/snow melt, any collected sand/salt from winter time road maintenance must be removed. Further replacement of damaged vegetation should occur as soon as possible after the melt when damage can be adequately surveyed. Added organic matter (generally mulch) may be required especially if drainage to the swale in question is from a corresponding parking lot of roadway. Finally, Deicing agents (salts) can damage soil structure by reducing the soils' organic matter content, inspect and ensure excess loading is not occurring in the feature. (University of Minnesota-Duluth - LakeSuperiorStreams, 2009). <ref>University of Minnesota-Duluth - LakeSuperiorStreams. 2009. LakeSuperiorStreams: Community Partnerships For Understanding Water Quality and Stormwater Impacts at the Head of the Great Lakes (http://lakesuperiorstreams.org). University of Minnesota-Duluth, Duluth, MN 55812.</ref>

Additions of mulch (added organic matter) may be required if drainage to swale is from roadway or parking lot. Deicing salts can damage soil structure by reducing soils organic matter.

For more detailed guidance, refer to STEP's Low Impact Development Stormwater Management Practice Inspection and Maintenance Guide and Swales Inspection and Maintenance Fact Sheet, both of which can be accessed [https://sustainabletechnologies.ca/home/urban-runoff-green-infrastructure/low-impact-development/low-impact-development-stormwater-practice-inspection-and-maintenance-guide/ here]

For more detailed guidance, refer to STEP's Low Impact Development Stormwater Management Practice Inspection and Maintenance Guide and Swales Inspection and Maintenance Fact Sheet, both of which can be accessed [https://sustainabletechnologies.ca/home/urban-runoff-green-infrastructure/low-impact-development/low-impact-development-stormwater-practice-inspection-and-maintenance-guide/ here]

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