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Link to this [[Pollutant removal percentages for filtration BMPs|table]]</center> | Link to this [[Pollutant removal percentages for filtration BMPs|table]]</center> | ||
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Pollutant Removal Percentages for Filtration BMPs (Source: ASCE International BMP Database (ww.bmpdatabase.org) and Winer (CWP), 2000 (see also Appenidx N) | ||||||
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Practice | TSS High-Med-Low3 | TP High-Med-Low3 | TN4 | Metals4 (average of Zn and Cu) | Bacteria4 | Hydrocarbons4 |
Media Filter1 | 75-85-90 | 30-50-55 | 35 | 80 | 35 | 80 |
Vegetative Filter2 | 40-70-80 | (-)51-0-35 | 35 | 80 | 35 | 80 |
1 For example, sand, mixed sand/peat and other geologic media 2 Grass filter/swale 3 See Appendix N discussion 4 Not enough information given in databases to differentiate ype of filter so both combined for this entry |