Media filters
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For gravel filter ideas which use the filtering of geotextile, see infiltration trenches.
| Surface filter | Underground filter | Perimeter filter | Pocket filter | Organic filter | Bioretention | |
|---|---|---|---|---|---|---|
| Minimum head (m) | 1.5 | 1.2 | 0.9 | 0.9 | 1.5 | 1.2 |
| Ultra-urban | Maybe | Ideal | Yes | Maybe | Maybe | Maybe |
| Parking lots | Ideal | Yes | Ideal | Yes | Yes | Ideal |
| Roads | Maybe | Maybe | Maybe | Maybe | No | Yes |
| Residential | Maybe | Maybe | Maybe | Yes | Maybe | Yes |
| Landscaped | No | No | No | No | Maybe | Ideal |
| Rooftop | Yes | Yes | Yes | Yes | Yes | Yes |