Difference between revisions of "Climate, soil, terrain factors affecting BMP selection"
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<td>[[Bioretention]] with underdrain</td> | <td>[[Bioretention]] with underdrain</td> | ||
| − | <td>OK. | + | <td>OK. Under certain conditions use [http://stormwater.pca.state.mn.us/index.php/Liners_for_stormwater_management impermeable liner]</td> |
<td>Recommended.</td> | <td>Recommended.</td> | ||
<td>OK. Use salt-tolerant vegetationand pre-treatment. Chlorides will move through untreated.</td> | <td>OK. Use salt-tolerant vegetationand pre-treatment. Chlorides will move through untreated.</td> | ||
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<td>Filtration<sup>a</sup></td> | <td>Filtration<sup>a</sup></td> | ||
| − | <td>OK. | + | <td>OK. Under certain conditions use [http://stormwater.pca.state.mn.us/index.php/Liners_for_stormwater_management impermeable liner]</td> |
<td>Recommended</td> | <td>Recommended</td> | ||
<td>OK. Place below frost line. Use pre-treatment. Chlorides will move through untreated.</td> | <td>OK. Place below frost line. Use pre-treatment. Chlorides will move through untreated.</td> | ||
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<td>[[Stormwater ponds]]</td> | <td>[[Stormwater ponds]]</td> | ||
| − | <td>OK. | + | <td>OK. Under certain conditions use [http://stormwater.pca.state.mn.us/index.php/Liners_for_stormwater_management impermeable liner]; limit depth; geotechnical investigation needed.</td> |
<td>Limited due to available depth and large surface area requirement.</td> | <td>Limited due to available depth and large surface area requirement.</td> | ||
<td>Recommended. Limit depth to avoid stratification. Adapt outlet structure.</td> | <td>Recommended. Limit depth to avoid stratification. Adapt outlet structure.</td> | ||
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<td>[[Stormwater wetlands|Constructed wetlands]]</td> | <td>[[Stormwater wetlands|Constructed wetlands]]</td> | ||
| − | <td>OK. | + | <td>OK. Under certain conditions use [http://stormwater.pca.state.mn.us/index.php/Liners_for_stormwater_management impermeable liner]; limit depth; geotechnical investigation needed.</td> |
<td>OK. Large surface area.</td> | <td>OK. Large surface area.</td> | ||
<td>OK. Use salt-tolerant vegetation.</td> | <td>OK. Use salt-tolerant vegetation.</td> | ||
Revision as of 19:17, 2 December 2015
This table shows the summary of climate, soil and terrain factors that affect the selection of Best Management Practices.
Link to this table
| BMP | Karst | Bedrock and shallow soils | High snowfall - meltwater treatment | Low rainfall | |
|---|---|---|---|---|---|
| Bioretention - no underdrain | Not recommended. Extensive pre-treatment required | Not recommended due to separation distance | OK. Use salt-tolerant vegetationand pre-treatment. Chlorides will move through untreated. | OK. Use appropriate vegetation. | |
| Bioretention with underdrain | OK. Under certain conditions use impermeable liner | Recommended. | OK. Use salt-tolerant vegetationand pre-treatment. Chlorides will move through untreated. | OK. Use appropriate vegetation. | |
| Filtrationa | OK. Under certain conditions use impermeable liner | Recommended | OK. Place below frost line. Use pre-treatment. Chlorides will move through untreated. | Recommended. | |
| Infiltrationb | Not recommended. Extensive pre-treatment required | Not recommended due to separation distance | OK but could be limited. Active management needed to prevent infiltration of chlorides and soluble toxics. | Recommended | |
| Stormwater ponds | OK. Under certain conditions use impermeable liner; limit depth; geotechnical investigation needed. | Limited due to available depth and large surface area requirement. | Recommended. Limit depth to avoid stratification. Adapt outlet structure. | Limited. Water budget calculations may show this to be unsuitable. | |
| Constructed wetlands | OK. Under certain conditions use impermeable liner; limit depth; geotechnical investigation needed. | OK. Large surface area. | OK. Use salt-tolerant vegetation. | Limited. Water budget calculations may show this to be unsuitable. |
aSee sand filters or swales
bSee infiltration trench or infiltration basin