Wetland Delineations
From an isolated wetland in your backyard, to complex projects with wetlands that cross Minnesota, Wisconsin, Iowa or North Dakota and South Dakota's state boundaries. Acorn Environmental Consultants, has the certified wetland professionals on staff and experience to assist you. When your turn key consultant is broken turn to a specialist.

Wetland Site Investigations often involve a multi-technology solution. Our wetland delineators are skilled in using remotely sensed wetland inventory products, database reviews, function and value assessments like MnRAM and Wisconsin Rapid Assessment, GPS and GIS, and electronic wetland hydrology monitoring data loggers.

Wetland Delineations are more than a line along the water. The U.S. Army Corps of Engineers (USACOE) along with the NRCS, and U.S. Fish and Wildlife Service (USFWS) have worked together to establish a working solution to provide consistency in determining wetland boundaries. A three parameter approach has been developed. Wetlands are driven by water at or near the soil surface. The first criterion is a hydrophytic plant community. The second is wetland hydrology and the third is hydric soils.

Using the three parameter approach (vegetation, hydrology and soils) to determine wetland boundaries has developed since the original Corps of Engineers Wetlands Delineation Manual 1987 was approved. Now a series of regional supplements are being developed and implemented.

Three Parameter Approach to Identifying Wetlands


Hydrophytic Vegetation

You can follow this link to more information about plants found in wetlands.


Wetland Hydrololgy

This link will take you to more information about the hydrology criterion used to determine wetland boundaries.



Hydric Soils

Take this link to more information about hydric soils and their relationship to wetlands.