Stormwater filtration BMPs - treatment properties
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Stormwater filtration BMPs - treatment properties

Stormwater filtration BMPs - treatment properties
Link to this table

Stormwater BMP	Pollutant Removal Mechanism	Location in Treatment Train	Pollutant Removal ^1,2	Potential Application ¹
Dry swale or step pool	Sedimentation / Infiltration	Throughout	TSS: Medium TN: Low TP: Medium Chloride: Low Metals: Medium Oils and Grease: Low Pathogens: Low	Residential Commercial Industrial Ultra Urban Highway/Road Recreational
Wet swale	Sedimentation / Infiltration	End	TSS: High TN: Medium/High TP: Medium/High Chloride: Low Metals: High Oils and Grease: High Pathogens: High	Residential: Yes Commercial: Yes Ultra Urban: Limited Industrial: Limited Retrofit: Yes Highway/Road: Limited
Biofiltration Basin	Sedimentation / Infiltration	Beginning	TSS: High TN: Low/Medium TP: Medium/High Chloride: Low Metals: High Oils and Grease: High	Residential: Yes Commercial: Yes Ultra Urban: Limited Industrial: Limited Retrofit: Yes Highway/Road: Limited
Permeable pavement with underdrain	Infiltration	Beginning	TSS: High TN: Medium/High TP: Medium/High Chloride: Low Metals: High Oils and Grease: High	Residential: Yes Commercial: Yes Ultra Urban: Yes Industrial: Limited Retrofit: Yes Highway/Road: Limited
Tree Trench/Tree Box (with underdrain)	Infiltration, Transpiration	Throughout	TSS: High TN: Medium/High TP: Medium/High Chloride: Low Metals: High Oils and Grease: High Pathogens: High	Residential: Limited Commercial: Yes Ultra Urban: Yes Industrial: Limited Retrofit: Yes Highway/Road: Limited
Green roof			TSS: High TN: Medium/High TP: Medium/High Chloride: Low Metals: High Oils and Grease: High Pathogens: High	Residential: Yes Commercial: Yes Ultra Urban: Yes Industrial: Yes Retrofit: Yes Highway/Road: No

¹ Treatment Capabilities and Potential Applications referenced from Manual Section BMP's for stormwater infiltration
² Low = < 30%; Medium = 30‐65%; High = 65‐100%