Wetlands come in many different shapes, sizes and types. They vary in the amount of water they hold, how long they hold water and the type of vegetation they support. Not all wetland have standing water during the growing season.

All wetlands monitored in WHEP must meet three criteria:

  1. soils developed in wet conditions
  2. wet either above ground or wet within 12 inches of the surface during all or part of the growing season
  3. plants adapted to live in wet soil conditions

The U.S. Fish and Wildlife Service divided wetlands into eight types (Types 1-8). The two primary characteristics used in the classification system include the wetland's dominant plant type and water depth during the growing season. Wetlands monitored in WHEP are depressional wetlands with emergent marsh vegetation (Types 3, 4, or 5). 

The Minnesota Pollution Control Agency designed and tested the WHEP sampling protocols for Type 3, 4 and 5 wetlands located in the Central Hardwood Region of the State of Minnesota.

Wetlands sampled in WHEP are chosen by the sponsoring agency (city, watershed management organization or park department). 

Wetlands monitored in the 2022 season are:

Apple Valley

AV-1 Hidden Valley, EVR-P53 map 2.4MB
AV-10 Alimagnet Park Ridgeview Drive Parking Lot Wetland, AL-P9.6 map 2.4MB
AV-12 Everest Pond, EVR-P12 map 411.8KB
AV-18 Sunset Park Pond, AL-P8 map 2.5MB


B-1 Crystal West map 3.0MB
B-4 Alimagnet map 2.3MB
B-9 Crosstown West map 2.9MB
B-18 Terrace Oaks North Central map 2.4MB
Alternate: B-12 Terrace Oaks Burnsville Pkwy map 2.4MB

Dakota County Parks Team 1

DC-1 Empire Lake map 1.6MB
DC-4 East Jenson map 1.9MB
DC-8 Star Pond East map 1.5MB
DC-13 Thompson Lake map 153.3KB

Dakota County Parks Team 2

DC-2 Buck Pond map 1.9MB
DC-3 Tamarack Swamp map 1.2MB
DC-6 BB's Wetland map 1.9MB
DC-7 Lilypad Pond map 1.9MB


E-31 Walnut Hill map 705.6KB
E-36 Mooney map 869.5KB
E-41 O'Leary map (reference wetland) 862.0KB
Alternate: E-18 Pond DP-14 at Moonshine Park map 781.4KB


F-3 Kral Pond map 106.6KB
F-7 Autumn Glen map 123.1KB
F-9 Cambodia Ave map 155.1KB


H-4 Stonegate Treated map 1.0MB
H-6 Lake Rebecca map 215.7KB
H-56 180th Street Marsh map 1008.4KB
H-57 Cari Park Pond map 192.7KB
Alternate: H-30 Sand Coulee Pond map 194.1KB


L-7 DNR 387 map 1.1MB
L-8 DNR 393 map 2.0MB

Mendota Heights

MH-2 Copperfield map 1.5MB
MH 20 City Hall Orchard Heights map 554.6KB

North Cannon River Watershed Management Organization

NC-1 Loretto Map 381.5KB
NC-3 Jordan Map 292.9KB


R-1 Kelly Marsh_WMP-362 map 2.7MB
R-21 CR-38 Mitigation Site 1 map 2.5MB
R-23 CR-38-Mitigation Site 2 map 1.5MB
R-26 Erickson Pond map updated access info map 188.2KB
R-26 Erickson Pond map 395.8KB

  • Alternate sites: R-4, R-15 or R-20 (all sampled in 2021)

South St. Paul

SSP-1 Anderson Pond map 2.0MB
SSP-3 Levander map 2.1MB

West St. Paul

WSP-10_WSP-3_WSP-4 map.pdf 1.8MB
WSP-6 map.pdf 274.8KB

WSP-3 Duck Pond (cross check)

WSP-4 Weschcke Pond

WSP-6 Marthaler Pond (WSP-6 replaced WSP-9 Marie Ave in 2022)

WSP-10 Humboldt Pond