Stormwater filtration BMPs - treatment properties
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Stormwater BMP |
Illustration |
Pollutant Removal Mechanism |
Location in Treatment Train |
Pollutant Removal 1,2 |
Potential Application 1 |
Dry swale or step pool |
![image dry swale](/images/thumb/0/0c/Dry_swale_credit_picture_1.jpg/100px-Dry_swale_credit_picture_1.jpg) |
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 |
![Screen shot of the Watershed tab for Wet swale](/images/thumb/1/13/Watershed_tab_for_wet_swale.png/100px-Watershed_tab_for_wet_swale.png) |
Sedimentation / Transpiration |
throughout |
- TSS: Medium
- TN: Low
- TP: Low
- Chloride: Low
- Metals: Low
- Oils and Grease: Low
- Pathogens: Low
|
- Residential
- Commercia
- Ultra Urban
- Industrial
- Highway/Road
- Recreation
|
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%