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 |