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− | <font size=3>''' | + | <font size=3>'''Settling chamber surface area for sand filters and perimeter sand filters'''.</font size><br> |
Link to this [[Settling chamber surface area|table]] | Link to this [[Settling chamber surface area|table]] | ||
<table class="sortable"> | <table class="sortable"> | ||
<tr> | <tr> | ||
− | < | + | <th rowspan=2 colspan=2><center>'''Sand Filter'''</center></th> |
− | < | + | <th colspan=2>'''Maximum Ponding Depth (feet)'''</th> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | < | + | <th><center>'''< 4'''</center></th> |
− | < | + | <th><center>'''4 to 10'''</center></th> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td rowspan=2>Impervious</td> | <td rowspan=2>Impervious</td> | ||
− | <td> | + | <td>≥ 75%</td> |
− | <td>(0.25 | + | <td>(0.25 V<sub>wq</sub>) / D<sub>max</sub></td> |
− | <td>(0.25 | + | <td>(0.25 V<sub>wq</sub>) / D<sub>max</sub></td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td><75%</td> | + | <td>< 75%</td> |
− | <td>(0.25 | + | <td>(0.25 V<sub>wq</sub>) / D<sub>max</sub></td> |
− | <td>0.066 | + | <td>0.066 V<sub>wq</sub></td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | < | + | <th rowspan=2 colspan=2>'''Perimeter Sand Filter'''</th> |
− | < | + | <th colspan=2>'''Maximum Ponding Depth (feet)'''</th> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | < | + | <th>'''<7.5'''</th> |
− | < | + | <th>'''8 to 10'''</th> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td rowspan=2>Impervious</td> | <td rowspan=2>Impervious</td> | ||
− | <td> | + | <td>≥ 75%</td> |
− | <td>(0.5 | + | <td>(0.5 V<sub>wq</sub>) / D<sub>max</sub></td> |
− | <td>(0.5 | + | <td>(0.5 V<sub>wq</sub>) / D<sub>max</sub></td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td><75%</td> | + | <td>< 75%</td> |
− | <td>(0.25 | + | <td>(0.25 V<sub>wq</sub>) / D<sub>max</sub></td> |
− | <td>0.066 | + | <td>0.066 V<sub>wq</sub></td> |
</tr> | </tr> | ||
</table> | </table> | ||
− | [[ | + | |
+ | <noinclude>[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Sand filter, iron enhanced sand filter, media filter]]</noinclude> |
Settling chamber surface area for sand filters and perimeter sand filters.
Link to this table
Maximum Ponding Depth (feet) | |||
---|---|---|---|
Impervious | ≥ 75% | (0.25 Vwq) / Dmax | (0.25 Vwq) / Dmax |
< 75% | (0.25 Vwq) / Dmax | 0.066 Vwq | |
Perimeter Sand Filter | Maximum Ponding Depth (feet) | ||
<7.5 | 8 to 10 | ||
Impervious | ≥ 75% | (0.5 Vwq) / Dmax | (0.5 Vwq) / Dmax |
< 75% | (0.25 Vwq) / Dmax | 0.066 Vwq |
This page was last edited on 4 August 2022, at 16:21.