Difference between revisions of "Event mean concentrations for total phosphorus"
m |
m |
||
| Line 9: | Line 9: | ||
<th>Land cover/land use</th> | <th>Land cover/land use</th> | ||
<th>Range (mg/L)</th> | <th>Range (mg/L)</th> | ||
| − | |||
<th>Recommended value (mg/L)<sup>1</sup></th> | <th>Recommended value (mg/L)<sup>1</sup></th> | ||
<th>Notes</th> | <th>Notes</th> | ||
| Line 16: | Line 15: | ||
<td>Commercial</td> | <td>Commercial</td> | ||
<td>0.20 - 0.34</td> | <td>0.20 - 0.34</td> | ||
| − | <td>0. | + | <td>0.200</td> |
| − | |||
<td>If applicable to models being used, adjust curve numbers/runoff coefficients when calculating loads</td> | <td>If applicable to models being used, adjust curve numbers/runoff coefficients when calculating loads</td> | ||
</tr> | </tr> | ||
| Line 23: | Line 21: | ||
<td>Industrial</td> | <td>Industrial</td> | ||
<td>0.23 - 0.55</td> | <td>0.23 - 0.55</td> | ||
| − | |||
<td>0.235</td> | <td>0.235</td> | ||
<td> | <td> | ||
| Line 33: | Line 30: | ||
<td>Residential</td> | <td>Residential</td> | ||
<td>0.26 - 0.38</td> | <td>0.26 - 0.38</td> | ||
| − | |||
<td>0.325</td> | <td>0.325</td> | ||
<td>Concentrations vary widely depending on local conditions</td> | <td>Concentrations vary widely depending on local conditions</td> | ||
| Line 40: | Line 36: | ||
<td>High-density/Multi-family residential</td> | <td>High-density/Multi-family residential</td> | ||
<td>0.28 - 0.40</td> | <td>0.28 - 0.40</td> | ||
| − | |||
<td>Calculate</td> | <td>Calculate</td> | ||
<td> | <td> | ||
| Line 50: | Line 45: | ||
<td>Medium density residential</td> | <td>Medium density residential</td> | ||
<td>0.18 - 0.40</td> | <td>0.18 - 0.40</td> | ||
| − | |||
<td>Calculate</td> | <td>Calculate</td> | ||
<td>*Insufficient information to recommend a specific emc | <td>*Insufficient information to recommend a specific emc | ||
| Line 58: | Line 52: | ||
<td>Low density residential</td> | <td>Low density residential</td> | ||
<td>0.24 - 0.40</td> | <td>0.24 - 0.40</td> | ||
| − | |||
<td>Calculate</td> | <td>Calculate</td> | ||
<td> | <td> | ||
| Line 68: | Line 61: | ||
<td>Freeways/transportation</td> | <td>Freeways/transportation</td> | ||
<td>0.25 - 0.45</td> | <td>0.25 - 0.45</td> | ||
| − | |||
<td>0.28</td> | <td>0.28</td> | ||
<td> | <td> | ||
| Line 77: | Line 69: | ||
<td>Mixed</td> | <td>Mixed</td> | ||
<td>0.25 - 0.45</td> | <td>0.25 - 0.45</td> | ||
| − | |||
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
| Line 83: | Line 74: | ||
<tr> | <tr> | ||
<td>Parks and recreation</td> | <td>Parks and recreation</td> | ||
| − | |||
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
| Line 91: | Line 81: | ||
<td>Open space</td> | <td>Open space</td> | ||
<td>0.12 - 0.31</td> | <td>0.12 - 0.31</td> | ||
| − | |||
<td>0.19</td> | <td>0.19</td> | ||
<td></td> | <td></td> | ||
| Line 99: | Line 88: | ||
<td>0.05 - 0.20</td> | <td>0.05 - 0.20</td> | ||
<td>0.09</td> | <td>0.09</td> | ||
| − | |||
<td></td> | <td></td> | ||
</tr> | </tr> | ||
| Line 106: | Line 94: | ||
<td>0.18 - 0.40</td> | <td>0.18 - 0.40</td> | ||
<td>0.26</td> | <td>0.26</td> | ||
| − | |||
<td></td> | <td></td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Cropland</td> | <td>Cropland</td> | ||
| − | |||
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
| Line 118: | Line 104: | ||
<tr> | <tr> | ||
<td>Forest/shrub/grassland</td> | <td>Forest/shrub/grassland</td> | ||
| − | |||
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
| Line 125: | Line 110: | ||
<tr> | <tr> | ||
<td>Open water</td> | <td>Open water</td> | ||
| − | |||
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
| Line 132: | Line 116: | ||
<tr> | <tr> | ||
<td>Wetlands</td> | <td>Wetlands</td> | ||
| − | |||
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
| Line 139: | Line 122: | ||
<tr> | <tr> | ||
<td>Farmsteads</td> | <td>Farmsteads</td> | ||
| − | |||
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
| Line 148: | Line 130: | ||
<td>0.05 - 0.25</td> | <td>0.05 - 0.25</td> | ||
<td>0.25</td> | <td>0.25</td> | ||
| − | |||
<td></td> | <td></td> | ||
</tr> | </tr> | ||
Revision as of 17:22, 26 December 2019
Information: This page was updated October 31, 2019. Read table caption below.
Event mean concentrations for total phosphorus. This table was updated October 31, 2019. We retained data from the previous table, but we recommend using the median values from a literature review (3rd column). To see supporting information used to derive this table, link here.
Link to this table
| Land cover/land use | Range (mg/L) | Recommended value (mg/L)1 | Notes |
|---|---|---|---|
| Commercial | 0.20 - 0.34 | 0.200 | If applicable to models being used, adjust curve numbers/runoff coefficients when calculating loads |
| Industrial | 0.23 - 0.55 | 0.235 |
|
| Residential | 0.26 - 0.38 | 0.325 | Concentrations vary widely depending on local conditions |
| High-density/Multi-family residential | 0.28 - 0.40 | Calculate |
|
| Medium density residential | 0.18 - 0.40 | Calculate | *Insufficient information to recommend a specific emc
|
| Low density residential | 0.24 - 0.40 | Calculate |
|
| Freeways/transportation | 0.25 - 0.45 | 0.28 |
|
| Mixed | 0.25 - 0.45 | ||
| Parks and recreation | |||
| Open space | 0.12 - 0.31 | 0.19 | |
| Conventional roof | 0.05 - 0.20 | 0.09 | |
| Public/semi public (institutional) | 0.18 - 0.40 | 0.26 | |
| Cropland | |||
| Forest/shrub/grassland | |||
| Open water | |||
| Wetlands | |||
| Farmsteads | |||
| Forest | 0.05 - 0.25 | 0.25 |