Difference between revisions of "Pollutant removal percentages for filtration BMPs"
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| − | <td colspan=7><sup>1</sup> For example, sand, mixed sand/peat and other geologic media | + | <td colspan=7> |
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| + | <sup>1</sup> For example, sand, mixed sand/peat and other geologic media | ||
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<sup>2</sup> Grass filter/swale | <sup>2</sup> Grass filter/swale | ||
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<sup>3</sup> See Appendix N discussion | <sup>3</sup> See Appendix N discussion | ||
| − | <sup>4</sup> Not enough information given in databases to differentiate | + | |
| + | <sup>4</sup> Not enough information given in databases to differentiate ype of filter so both combined for this entry</td> | ||
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</table> | </table> | ||
Revision as of 16:29, 4 February 2013
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 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 |
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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 |
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