Example Infiltration Requirements in the Twin Cities Metro Area (2009)
{{alert|Note these were infiltration requirements in 2009. These are examples for illustration purposes. Some of these requirements have likely changed since 2009.
Example Infiltration Requirements in the Twin Cities Metro Area (2009)
Link to this table
| Municipalities | ||
|---|---|---|
| Entity | Infiltration Requirement | Requirement Applies To |
| Afton | 0.6” | Impervious area |
| Inver Grove Heights NWA | 3.6” Pre-Post | Entire site |
| Lakeville | 1.5” | Impervious area (within areas draining to trout waters) |
| Woodbury | 0.5” | Entire site |
| Maplewood | 1” | Entire site |
| Watershed Districts | ||
| Entity | Infiltration Requirement | Requirement Applies To |
| Brown's Creek | 2.8” Rainfall Event Pre-Post, 3.6” Rainfall Event if Landlocked | Entire site |
| Capitol Region | 1” | Impervious area |
| Comfort Lake-Forest Lake | 2.8” Rainfall Event Pre-Post, 3.6” Rainfall Event if Landlocked | Entire site |
| Minnehaha Creek | 1” | Impervious area |
| Nine Mile Creek | 1” | Impervious area |
| Prior Lake-Spring Lake | 0.5” | New Impervious |
| Ramsey-Washington Metro | 1” | Impervious area |
| Watershed Management Organizations | ||
| Entity | Infiltration Requirement | Requirement Applies To |
| Scott County | 0.5” | New impervious area |
| Vermillion River | 2.8” Rainfall Event Pre-Post | Entire site |
| Shingle Creek | 0.5” | Impervious area |
| West Mississippi | 0.5” | Impervious area |
| Upper Rum River | 0.5” | New impervious area |