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| |'''[[Bioretention]]''' | | |'''[[Bioretention]]''' |
| |1 (infiltrating); Not a constraint (non-infiltrating) | | |1 (infiltrating); Not a constraint (non-infiltrating) |
− | |5:1 to 15:1||[[Underdrain]] recommended<br>if < 15 mm/hr||1 to 2||5 to 10||0 to 2||No (infiltrating); Yes (non-infiltrating)||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 yr (infiltrating); None (non-infiltrating) | + | |5:1 to 15:1||Decompaction and [[Underdrain]] recommended<br>if < 15 mm/hr||1 to 2||5 to 10||0 to 2||No (infiltrating); Yes (non-infiltrating)||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 yr (infiltrating); None (non-infiltrating) |
| |- | | |- |
| |'''[[Stormwater planters]]''' | | |'''[[Stormwater planters]]''' |
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| |'''[[Vegetated filter strips]]''' | | |'''[[Vegetated filter strips]]''' |
| |Not a constraint | | |Not a constraint |
− | |4:1 or less||Decompact if < 15 mm/hr||0 to 1||15 to 20||1 to 5||No||None||Yes||None | + | |4:1 or less||Decompaction if < 15 mm/hr||0 to 1||15 to 20||1 to 5||No||None||Yes||None |
| |- | | |- |
| |'''[[Permeable pavements]]''' | | |'''[[Permeable pavements]]''' |
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| |'''[[Enhanced swales]] (featuring check dams)''' | | |'''[[Enhanced swales]] (featuring check dams)''' |
| |1 | | |1 |
− | |5:1 to 10:1||Decompact if < 15 mm/hr||1 to 3||5 to 15||0.5 to 6||No||4m- Building Foundation<br>Underground Utilities||No||2 Yr | + | |5:1 to 10:1||Decompaction if < 15 mm/hr||1 to 3||5 to 15||0.5 to 6||No||4m- Building Foundation<br>Underground Utilities||No||2 Yr |
| |- | | |- |
| |'''[[Bioswales]] (Dry swales)''' | | |'''[[Bioswales]] (Dry swales)''' |
| |1 (infiltrating); Not applicable (non-infiltrating) | | |1 (infiltrating); Not applicable (non-infiltrating) |
− | |5:1 to 15:1||Underdrain recommended <br> if < 15 mm/hr||1 to 3||5 to 10||0.5 to 6||No (infiltrating); Yes (non-infiltrating)||4m (3m if impermeable liner<br>is used) Building foundation,<br> Underground utilities,<br> Drinking Water Wellhead Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 Yr (infiltrating); None (non-infiltrating) | + | |5:1 to 15:1||Decompaction and [[Underdrain]] recommended <br> if < 15 mm/hr||1 to 3||5 to 10||0.5 to 6||No (infiltrating); Yes (non-infiltrating)||4m (3m if impermeable liner<br>is used) Building foundation,<br> Underground utilities,<br> Drinking Water Wellhead Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 Yr (infiltrating); None (non-infiltrating) |
| |- | | |- |
| |'''[[Exfiltration trenches]]''' | | |'''[[Exfiltration trenches]]''' |