This table shows the summary of climate, soil and terrain factors that affect the selection of Best Management Practices.
Link to this table

BMP Karst Bedrock and shallow soils High snowfall - meltwater treatment Low rainfall
Bioretention - no underdrain Not recommended. Extensive pre-treatment required Not recommended due to separation distance OK. Use salt-tolerant vegetationand pre-treatment. Chlorides will move through untreated. OK. Use appropriate vegetation.
Bioretention with underdrain OK. Under certain conditions use impermeable liner Recommended. OK. Use salt-tolerant vegetationand pre-treatment. Chlorides will move through untreated. OK. Use appropriate vegetation.
Filtrationa OK. Under certain conditions use impermeable liner Recommended OK. Place below frost line. Use pre-treatment. Chlorides will move through untreated. Recommended.
Infiltrationb Not recommended. Extensive pre-treatment required Not recommended due to separation distance OK but could be limited. Active management needed to prevent infiltration of chlorides and soluble toxics. Recommended
Stormwater ponds OK. Under certain conditions use impermeable liner; limit depth; geotechnical investigation needed. Limited due to available depth and large surface area requirement. Recommended. Limit depth to avoid stratification. Adapt outlet structure. Limited. Water budget calculations may show this to be unsuitable.
Constructed wetlands OK. Under certain conditions use impermeable liner; limit depth; geotechnical investigation needed. OK. Large surface area. OK. Use salt-tolerant vegetation. Limited. Water budget calculations may show this to be unsuitable.

aSee sand filters or swales
bSee infiltration trench or infiltration basin

This page was last edited on 2 December 2015, at 19:17.

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