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<tr>
 
<tr>
 
<th>Practice</th>
 
<th>Practice</th>
<th>TSS Low-Med-High<sup>3</sup></th>
+
<th>TSS Low-Med-High</th>
<th>TP Low-Med-High<sup>3</sup></th>
+
<th>TP Low-Med-High</th>
 
<th>TN<sup>4</sup></th>
 
<th>TN<sup>4</sup></th>
<th>Metals<sup>4</sup> (average of Zn and Cu)</th>
+
<th>Metals<sup>3</sup> (average of Zn and Cu)</th>
<th>Bacteria<sup>4</sup></th>
+
<th>Bacteria<sup>3</sup></th>
<th>Hydrocarbons<sup>4</sup></th>
+
<th>Hydrocarbons<sup>3</sup></th>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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<font size=1><sup>1</sup> For example, sand, mixed sand/peat and other geologic media<br>
 
<font size=1><sup>1</sup> For example, sand, mixed sand/peat and other geologic media<br>
 
<sup>2</sup> Grass filter/swale<br>
 
<sup>2</sup> Grass filter/swale<br>
<sup>3</sup> See Appendix N discussion<br>
+
<sup>3</sup> Not enough information given in databases to differentiate ype of filter so both combined for this entry</font size>
<sup>4</sup> Not enough information given in databases to differentiate ype of filter so both combined for this entry</font size>
 
  
 
[[category:table]]
 
[[category:table]]

Revision as of 15:46, 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-High TP Low-Med-High TN4 Metals3 (average of Zn and Cu) Bacteria3 Hydrocarbons3
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 Not enough information given in databases to differentiate ype of filter so both combined for this entry