Minnesota Administrative Rules
Agency 183 - Water and Soil Resources Board
Chapter 8420 - WETLAND CONSERVATION
BOUNDARY OR TYPE, NO-LOSS, AND EXEMPTION STANDARDS
Part 8420.0405 - BOUNDARY OR TYPE
Current through Register Vol. 49, No. 13, September 23, 2024
Subpart 1. Wetland boundary.
Wetland boundaries must be determined using the methodologies in the United States Army Corps of Engineers Wetlands Delineation Manual (January 1987), including subsequent updates and supplements, and guidance provided by the board.
Subp. 2. Wetland type.
Wetland type must be identified according to United States Fish and Wildlife Service Circular No. 39 (1971 edition) Wetlands of the United States and Classification of Wetlands and Deepwater Habitats of the United States, including modifications or guidance provided by the board. Wetland type in relation to Wetland Plants and Plant Communities of Minnesota & Wisconsin is shown in the following table:
| Wetland Plants and Plant Communities of Minnesota and Wisconsin (Eggers and Reed 1997), as modified by the Board of Water and Soil Resources-United States Army Corps of Engineers Wetland Mitigation Memorandum of Understanding (May 2007) | Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al. 1979) | Fish and Wildlife Service Circular 39 (Shaw and Fredine 1971) |
| Shallow, open water | Palustrine or lacustrine, littoral; aquatic bed; submergent, floating, and floating-leaved | Type 5: Inland open fresh water |
| Deep marsh | Palustrine or lacustrine, littoral; aquatic bed; submergent, floating, and floating-leaved; emergent; persistent and nonpersistent | Type 4: Inland deep fresh marsh |
| Shallow marsh | Palustrine; emergent; persistent and nonpersistent | Type 3: Inland shallow fresh marsh |
| Sedge meadow | Palustrine; emergent; narrow-leaved persistent | Type 2: Inland fresh meadow |
| Fresh (wet) meadow | Palustrine; emergent; broad- and narrow-leaved persistent | Type 1: Seasonally flooded basin or flat Type 2: Inland fresh meadow |
| Wet to wet-mesic prairie | Palustrine; emergent; broad- and narrow-leaved persistent | Type 1: Seasonally flooded basin or flat Type 2: Inland fresh meadow |
| Calcareous fen | Palustrine; emergent; narrow-leaved persistent; scrub/shrub; broad-leaved deciduous | Type 2: Inland fresh meadow Type 6: Shrub swamp |
| Open bog or coniferous bog | Palustrine; moss/lichen; scrub/shrub; broad-leaved evergreen; forested; needle-leaved evergreen and deciduous | Type 8: Bog |
| Shrub-carr or alder thicket | Palustrine; scrub/shrub; broad-leaved deciduous | Type 6: Shrub swamp |
| Hardwood swamp or coniferous swamp | Palustrine; forested; broad-leaved deciduous; needle-leaved evergreen and deciduous | Type 7: Wooded swamp |
| Floodplain forest | Palustrine; forested; broad-leaved deciduous | Type 1: Seasonally flooded basin or flat |
| Seasonally flooded basin | Palustrine; flat; emergent; persistent and nonpersistent | Type 1: Seasonally flooded basin or flat |
Statutory Authority: MS s 103G.2242
