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<font size=3>'''General summary of comparative BMP phosphorus removal performance<sup>a,e,f</sup>'''</font size><br>
 
<font size=3>'''General summary of comparative BMP phosphorus removal performance<sup>a,e,f</sup>'''</font size><br>
 
Link to this [[Comparative BMP phosphorus removal|table]]
 
Link to this [[Comparative BMP phosphorus removal|table]]
 +
 +
{{alert|The values in this table represent information from the literature. The values do not represent credits provided elsewhere in this manual [See, for example, [[Information on pollutant removal by BMPs]] and [[Phosphorus credits for bioretention systems with an underdrain]]|alert-info}}
 +
 
<table class="sortable" border=2>
 
<table class="sortable" border=2>
 
<tr>
 
<tr>
 
<th>BMP Group</th>
 
<th>BMP Group</th>
 
<th>BMP Design Variation</th>
 
<th>BMP Design Variation</th>
<th>Average TP Removal Rate<sup>b</sup></th>
+
<th>Average TP Removal Rate (%)<sup>b</sup></th>
<th>Maximum TP Removal Rate<sup>c</sup></th>
+
<th>Maximum TP Removal Rate (%)<sup>c</sup></th>
<th>Average Soluble P Removal Rate<sup>dg</sup></th>
+
<th>Average Soluble P Removal Rate (%)<sup>dg</sup></th>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td Rowspan="2">Bioretention</td>
 
<td Rowspan="2">Bioretention</td>
 
<td>Underdrain</td>
 
<td>Underdrain</td>
<td>50%</td>
+
<td>59<br>
<td>65%</td>
+
see [[Phosphorus credits for bioretention systems with an underdrain]]</td>
<td>60%</td>
+
<td>80<br>
 +
see [[Phosphorus credits for bioretention systems with an underdrain]]</td>
 +
<td>0<br>
 +
see [[Phosphorus credits for bioretention systems with an underdrain]]</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Infiltration</td>
 
<td>Infiltration</td>
<td>100</td>
+
<td>
<td>100</td>
+
*100 for infiltrated portion
<td>100</td>
+
*0 for non-infiltrated portion</td>
 +
<td>
 +
*100 for infiltrated portion
 +
*0 for non-infiltrated portion</td>
 +
<td>
 +
*100 for infiltrated portion
 +
*0 for non-infiltrated portion</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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<tr>
 
<tr>
 
<td>Vegetative Filters (dry)</td>
 
<td>Vegetative Filters (dry)</td>
<td>0</td>
+
<td>50</td>
 
<td>55</td>
 
<td>55</td>
 
<td>0</td>
 
<td>0</td>
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<td>Wet Swale</td>
 
<td>Wet Swale</td>
 
<td>0</td>
 
<td>0</td>
<td>40</td>
+
<td>35</td>
 
<td>0</td>
 
<td>0</td>
 
</tr>
 
</tr>
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<td rowspan="2">Infiltration<sup>f,i</sup></td>
 
<td rowspan="2">Infiltration<sup>f,i</sup></td>
 
<td>Infiltration Trench</td>
 
<td>Infiltration Trench</td>
<td>100</td>
+
<td>
<td>100</td>
+
*100 for infiltrated portion
<td>100</td>
+
*0 for non-infiltrated portion</td>
 +
<td>
 +
*100 for infiltrated portion
 +
*0 for non-infiltrated portion</td>
 +
<td>
 +
*100 for infiltrated portion
 +
*0 for non-infiltrated portion</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Infiltration Basin</td>
 
<td>Infiltration Basin</td>
<td>100</td>
+
<td>
<td>100</td>
+
*100 for infiltrated portion
<td>100</td>
+
*0 for non-infiltrated portion</td>
 +
<td>
 +
*100 for infiltrated portion
 +
*0 for non-infiltrated portion</td>
 +
<td>
 +
*100 for infiltrated portion
 +
*0 for non-infiltrated portion</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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<td>50</td>
 
<td>50</td>
 
<td>75</td>
 
<td>75</td>
<td>70</td>
+
<td>0</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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<td>60</td>
 
<td>60</td>
 
<td>75</td>
 
<td>75</td>
<td>75</td>
+
<td>0</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
Line 71: Line 95:
 
<td>Shallow Wetland</td>
 
<td>Shallow Wetland</td>
 
<td>40</td>
 
<td>40</td>
<td>55</td>
+
<td>45</td>
<td>50</td>
+
<td>0</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
 
<td>Pond/Wetland</td>
 
<td>Pond/Wetland</td>
<td>55</td>
+
<td>44</td>
<td>75</td>
+
<td>49</td>
<td>65</td>
+
<td>33</td>
 
</tr>
 
</tr>
 
</table>
 
</table>
  
 
<font size=1>
 
<font size=1>
<sup>a</sup> Removal rates shown in table are a composite of five sources: [http://www.bmpdatabase.org ASCE/EPA International BMP Database];[http://yosemite.epa.gov/r10/water.nsf/95537302e2c56cea8825688200708c9a/159859e0c556f1c988256b7f007525b9/$FILE/Evaluating%20the%20Impact%20of%20Watershed%20Treatment.pdf Caraco (CWP)], 2001; [http://www.mde.state.md.us/programs/Water/StormwaterManagementProgram/MarylandStormwaterDesignManual/Pages/programs/waterprograms/sedimentandstormwater/stormwater_design/index.aspx MDE], 2000; [http://www.stormwatercenter.net/Library/STP-Pollutant-Removal-Database.pdf Winer (CWP)], 2000; and Issue Paper D [http://wwwalker.net/p8/ P8] modeling<br>
+
<sup>a</sup> Removal rates shown in table are a composite of five sources: [http://www.bmpdatabase.org ASCE/EPA International BMP Database]; Caraco (CWP), 2001; [https://mde.maryland.gov/programs/water/stormwatermanagementprogram/pages/stormwater_design.aspx MDE], 2000; [http://www.stormwatercenter.net/Library/STP-Pollutant-Removal-Database.pdf Winer (CWP)], 2000; and [https://stormwater.pca.state.mn.us/index.php?title=File:Issue_paper_D_-_unified_sizing_criteria_for_Minnesota.pdf Issue Paper D] [http://wwwalker.net/p8/ P8] modeling<br>
<sup>b</sup> Average removal efficiency expected under [http://www.pca.state.mn.us/index.php/water/water-types-and-programs/stormwater/construction-stormwater/index.html MPCA Construction General Permit] Sizing Rules 1 and 3<br>
+
<sup>b</sup> Average removal efficiency expected under [http://www.pca.state.mn.us/index.php/water/water-types-and-programs/stormwater/construction-stormwater/index.html MPCA Construction General Permit] sizing requirements<br>
 
<sup>c</sup> Upper limit on phosphorus removal with increased sizing and design features, based on national review<br>
 
<sup>c</sup> Upper limit on phosphorus removal with increased sizing and design features, based on national review<br>
 
<sup>d</sup> Average rate of soluble phosphorus removal in literature<br>
 
<sup>d</sup> Average rate of soluble phosphorus removal in literature<br>
<sup>e</sup> See also [[Calculating stormwater volume and pollutant reductions and credits]]<br>
+
<sup>e</sup> See also [[Stormwater pollutant removal, stormwater credits]]<br>
 
<sup>f</sup> Note that the performance numbers apply only to that portion of total flow actually being treated; it does not include any runoff that by-passes the BMP<br>
 
<sup>f</sup> Note that the performance numbers apply only to that portion of total flow actually being treated; it does not include any runoff that by-passes the BMP<br>
 
<sup>g</sup> Note that soluble P can transfer from surface water to ground water, but this column refers only to surface water<br>
 
<sup>g</sup> Note that soluble P can transfer from surface water to ground water, but this column refers only to surface water<br>
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</font size>
 
</font size>
 
{{alert|Removal rates shown here are composite averages intended solely for use in comparing performance between BMP designs and for use in calculating load reduction in site-based TP models. They have been adapted, rounded and slightly discounted from statistical values published in BMP performance databases.|alert-warning}}
 
{{alert|Removal rates shown here are composite averages intended solely for use in comparing performance between BMP designs and for use in calculating load reduction in site-based TP models. They have been adapted, rounded and slightly discounted from statistical values published in BMP performance databases.|alert-warning}}
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 +
 +
<noinclude>
 +
[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Pollutant removal]]
 +
</noinclude>

Latest revision as of 20:07, 4 August 2022

General summary of comparative BMP phosphorus removal performancea,e,f
Link to this table

Information: The values in this table represent information from the literature. The values do not represent credits provided elsewhere in this manual [See, for example, Information on pollutant removal by BMPs and Phosphorus credits for bioretention systems with an underdrain
BMP Group BMP Design Variation Average TP Removal Rate (%)b Maximum TP Removal Rate (%)c Average Soluble P Removal Rate (%)dg
Bioretention Underdrain 59
see Phosphorus credits for bioretention systems with an underdrain
80
see Phosphorus credits for bioretention systems with an underdrain
0
see Phosphorus credits for bioretention systems with an underdrain
Infiltration
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
Filtration Media Filter 50 55 0
Vegetative Filters (dry) 50 55 0
Wet Swale 0 35 0
Infiltrationf,i Infiltration Trench
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
Infiltration Basin
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
  • 100 for infiltrated portion
  • 0 for non-infiltrated portion
Stormwater Ponds Wet Pond 50 75 0
Multiple Pond 60 75 0
Stormwater Wetlands Shallow Wetland 40 45 0
Pond/Wetland 44 49 33

a Removal rates shown in table are a composite of five sources: ASCE/EPA International BMP Database; Caraco (CWP), 2001; MDE, 2000; Winer (CWP), 2000; and Issue Paper D P8 modeling
b Average removal efficiency expected under MPCA Construction General Permit sizing requirements
c Upper limit on phosphorus removal with increased sizing and design features, based on national review
d Average rate of soluble phosphorus removal in literature
e See also Stormwater pollutant removal, stormwater credits
f Note that the performance numbers apply only to that portion of total flow actually being treated; it does not include any runoff that by-passes the BMP
g Note that soluble P can transfer from surface water to ground water, but this column refers only to surface water
h Note that 100% is assumed for all infiltration, but only for that portion of the flow fully treated in theinfiltration facility; by-passed runoff or runoff diverted via underdrain does not receive this level of treatment

Caution: Removal rates shown here are composite averages intended solely for use in comparing performance between BMP designs and for use in calculating load reduction in site-based TP models. They have been adapted, rounded and slightly discounted from statistical values published in BMP performance databases.

This page was last edited on 4 August 2022, at 20:07.