Difference between revisions of "Event mean concentrations for total suspended solids"
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<font size=3>'''Event mean concentrations for total suspended solids.</font size><br> | <font size=3>'''Event mean concentrations for total suspended solids.</font size><br> | ||
Link to this [[Event mean concentrations for total suspended solids|table]] | Link to this [[Event mean concentrations for total suspended solids|table]] | ||
| Line 84: | Line 80: | ||
<td>Conventional roof</td> | <td>Conventional roof</td> | ||
<td></td> | <td></td> | ||
| − | <td>< | + | <td><20</td> |
<td></td> | <td></td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Institutional</td> | <td>Institutional</td> | ||
| − | <td></td> | + | <td>17-140</td> |
| − | <td></td> | + | <td>80</td> |
<td></td> | <td></td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Forest/shrub/grassland</td> | <td>Forest/shrub/grassland</td> | ||
| − | <td></td> | + | <td>26-140</td> |
| − | <td></td> | + | <td>72</td> |
| − | <td></td> | + | <td>Sediment concentrations from forested areas vary widely with factors such as slope and forest condition. Concentrations may be very high, but the annual volume of runoff is typically much less than non-forested areas.</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
| Line 105: | Line 101: | ||
<td> | <td> | ||
*If data exist, use the TSS concentration for the water body of interest | *If data exist, use the TSS concentration for the water body of interest | ||
| − | *If data for a specific | + | *If data for a specific water body do not exist, use data from similar lakes in the area</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Cropland (row crops)</td> | <td>Cropland (row crops)</td> | ||
| + | <td>50-160</td> | ||
<td></td> | <td></td> | ||
| − | <td> | + | <td>Literature review was not adequate to recommend an emc</td> |
| − | |||
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Pasture</td> | <td>Pasture</td> | ||
| − | <td></td> | + | <td>75-150</td> |
| − | <td></td> | + | <td>84</td> |
| − | <td></td> | + | <td>Concentrations are a function of intensity of use.</td> |
</tr> | </tr> | ||
</table> | </table> | ||
<noinclude> | <noinclude> | ||
| − | [[ | + | [[Category:Level 2 - Pollutants/Sediment (total suspended solids)]] |
| + | [[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Pollutant loading, concentrations, and characteristics]] | ||
| + | [[Category:Level 2 - Pollutants/Concentrations, export, loads]] | ||
</noinclude> | </noinclude> | ||
Latest revision as of 16:46, 23 March 2023
Event mean concentrations for total suspended solids.
Link to this table
| Land cover/land use | Range (mg/L) | Recommended value (mg/L) | Notes |
|---|---|---|---|
| Commercial | 42-164 | 75 | If applicable to models being used, adjust curve numbers/runoff coefficients when calculating loads |
| Industrial | 70-170 | 93 |
|
| Residential | 42-101 | 73 | |
| High-density/Multi-family residential | Calculate |
|
|
| Medium density residential | Calculate |
|
|
| Low density residential | Calculate |
|
|
| Freeways/transportation | 50-90 | 87 | |
| Mixed | 47-188 | 76 or calculate |
|
| Parks and recreation | Use value for open space or calculate |
|
|
| Open space | 11-70 | 21 | |
| Conventional roof | <20 | ||
| Institutional | 17-140 | 80 | |
| Forest/shrub/grassland | 26-140 | 72 | Sediment concentrations from forested areas vary widely with factors such as slope and forest condition. Concentrations may be very high, but the annual volume of runoff is typically much less than non-forested areas. |
| Open water and wetlands | see Notes (next column) |
|
|
| Cropland (row crops) | 50-160 | Literature review was not adequate to recommend an emc | |
| Pasture | 75-150 | 84 | Concentrations are a function of intensity of use. |
This page was last edited on 23 March 2023, at 16:46.