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#over-swelling clays or unstable subsoils,
#over-swelling clays or unstable subsoils,
#contaminated soils or sites with high risk of contamination from on-site activities,
#contaminated soils or sites with high risk of contamination from on-site activities,
#in flood prone areas where the wastewater system is sensitive to groundwater conditions causing sewer backups, and where LID BMPs have been found to be ineffective,
#in flood prone areas where the wastewater system is sensitive to groundwater conditions causing sewer backups,
#in areas where the ecology and natural hydrology are dependent upon surface water,
#in areas where the ecology and natural hydrology are dependent upon surface water,
#in areas where increased infiltration will result in elevated groundwater levels, which can be demonstrated to damage critical utilities or private property, or
#in areas where increased infiltration will result in elevated groundwater levels, which can be demonstrated to damage critical utilities or private property, or