BMP use in soil with low infiltration capacity

Structural BMP use in soil with low infiltration capacity
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BMP	Low infiltration capacity soil considerations
Bioretention	Should be constructed with an underdrain. Recharge criteria, if applicable, can be met by modifying the design to include and infiltration gallery below the underdrain, so long as it is appropriately sized.
Media filter	Recommended practice in tight soils. Some design variants can be modified to incorporate an infiltration gallery that can help meet recharge criteria, if properly sized.
Vegetative filter	Recommended practice in areas of shallow bedrock and soil Dry swales with engineered soil media will need an underdrain if minimum separation distance of three feet is not present between practice bottom and bedrock
Infiltration trench or basin	Not recommended as a practice Soils analysis should be conducted to confirm limiting aspects of soil profile
Stormwater ponds	Acceptable practice with tight soils. Soils should help maintain permanent pool.
Constructed wetlands	Acceptable practice with tight soils. Soils should help maintain permanent pool if practice is not tied into groundwater table. Compost amendments may be necessary to establish suitable planting beds