Difference between revisions of "Pollutant removal percentages for filtration BMPs"
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| Line 26: | Line 26: | ||
<td>Vegetative Filter<sup>2</sup></td> | <td>Vegetative Filter<sup>2</sup></td> | ||
<td>40-70-80</td> | <td>40-70-80</td> | ||
| − | <td>(-) | + | <td>(-51)-0-35</td> |
<td>35</td> | <td>35</td> | ||
<td>80</td> | <td>80</td> | ||
Revision as of 15:45, 7 March 2013
Pollutant removal percentages for filtration BMPs.
Link to this table
| Pollutant Removal Percentages for Filtration BMPs (Source: ASCE International BMP Database (ww.bmpdatabase.org) and Winer (CWP), 2000 (see also Appenidx N) | ||||||
|---|---|---|---|---|---|---|
| Practice | TSS Low-Med-High3 | TP Low-Med-High3 | 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