Difference between revisions of "Stormwater filtration BMPs – selection considerations"
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<td>Media filter (sand filter)</td> | <td>Media filter (sand filter)</td> | ||
| − | <td></td> | + | <td>[[File:Sand filter credit article.jpg|left|thumb|100px|alt=schematic showing sand filter system]]</td> |
| − | <td></td> | + | <td>Low</td> |
| − | <td></td> | + | <td>Simple-moderate</td> |
| − | <td></td> | + | <td>Small</td> |
| − | <td></td> | + | <td>Needed Oil/Water Separator, Vegetated Filter, Sediment Basin</td> |
| − | <td></td> | + | <td>Low</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Green roof</td> | <td>Green roof</td> | ||
| − | <td></td> | + | <td>[[File:MIDS calculator green roofs symbol.jpg|100px|alt=green roof schematic]]</td> |
| − | <td></td> | + | <td>High</td> |
| − | <td></td> | + | <td>Moderate-intensive</td> |
| − | <td></td> | + | <td>Small</td> |
| − | <td></td> | + | <td>Low</td> |
| − | <td></td> | + | <td>Medium</td> |
</tr> | </tr> | ||
</table> | </table> | ||
Revision as of 18:51, 19 March 2018
Stormwater filtration BMPs – selection considerations
Link to this Stormwater filtration BMPs – selection considerations
| Stormwater BMP | Illustration | Cost | Maintenance Requirements 3 | Space needed | Pretreatment 4 | Habitat Quality 5 |
|---|---|---|---|---|---|---|
| Dry swale or wet pool | 
 |
Low to medium (depends on components) | Simple‐Intensive | Small | Oil/Water Separator Sediment Basin (depending on watershed soil types, contributing drainage area, and potential for system fouling/plugging) | Low |
| Wet pool |  |
Low | Simple | Small | Oil/Water Separator | Low |
| Biofiltration Basin |  |
Low $0.5‐$1.3 CF | Simple‐Intensive | Small to medium | Needed Oil/Water Separator, Vegetated Filter, Sediment Basin, Water Quality Inlets | Medium‐High |
| Permeable Pavement (with underdrain) |  |
Medium 3‐10 CF | Medium | Small to medium | No Pretreatment Required | None |
| Tree Trench/Tree Box (with underdrain) |  |
High
$1.80 ‐ $12.70 CF based on recommended soil volume of 1,414 CF per tree |
Intensive | Small to large | Needed Oil/Water Separator, Water Quality Inlets | Medium |
| Media filter (sand filter) | Low | Simple-moderate | Small | Needed Oil/Water Separator, Vegetated Filter, Sediment Basin | Low | |
| Green roof |  |
High | Moderate-intensive | Small | Low | Medium |
1 Maintenance requirements to be addressed and updated in future section
2 Pretreatment requirements to be revised as per updated section
3 Habitat quality refers to the possible diversity of plantings commonly installed with each BMP