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

This page was last modified on 21 April 2017, at 14:38.

Minnesota Pollution Control Agency | 651-296-6300, 800-657-3864 | Assistance | Web site policy