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Wetland Hydrology

Wetlands provide benefits to humans for water quality and clarity, flood protection, and recreation. Learn about one of the most significant driving forces in the formation, function and ecology of a wetland.

Cover the basic definitions and benefits of wetlands, how wetlands are delineated, and indicators of wetland hydrology. The more advanced materials will include understanding wetland hydroperiods, how wetlands are connected to ground water and surface waters, how hydrology influences the formation of hydric soils and acts as a force that structures plant communities, how wetland hydrology influences nutrient flow, the effects of storm water on wetlands, and restoring wetland hydrology.

Plus, put your boots on the ground and take a tour of some wetlands including one of Wisconsin Wetland Association’s Wetland GemsTM.

Notes on the Field Trip What better way to learn about wetland hydrology than to get your feet wet? Be prepared to walk a half-mile or more on unpaved surfaces and boardwalks during the day. We may choose to venture into areas with saturated soil or standing water, so wear footwear you are willing to get wet. It is recommended that you wear long pants and consider bringing along insect repellent. The field trip will take place rain or shine; so please be ready.

This course can be applied to the Water Technology Certificate.


Ronald  Londré

Ronald Londré

Ronald A. Londré, PWS, is a Senior Ecologist at an environmental consulting company (TRC Environmental Corporation) with over nine years of professional experience in wetland ecology. He is certified by the Society of Wetland Scientists Professional Certification Program as a ... read more

Geoffrey Parish

Geoffrey B. Parish, P.G., P.H., is a hydrologist and geologist for a Milwaukee-based consulting company (GRAEF), with M.S. and B.S. degrees in geosciences from the University of Wisconsin-Milwaukee. He has studied wetland hydrology and soils in Wisconsin and Illinois for ... read more

Who Should Attend

Municipal staff, engineers, landscape architects, developers, land managers, entry level natural resource consultants, students, and anyone interested in learning more about wetland hydrology and wetland ecosystem services

Course Outline/Topics

Class will begin with some of the basics about wetlands and wetland ecology, go into greater depth about wetland hydrology, and then finish with a discussion of restoring wetland hydrology.


Day 1: Classroom Instruction

Welcome From UWM Continuing Education Staff

Introductions and Course Goals
– Ronald A. Londré, M.S., C.E. (GRAEF)
– Geoffrey B. Parish, P.G., P.H. (GRAEF)

Basics of Hydrology
– Geof Parish

Definitions and Benefits of Wetlands
– Ron Londré

Wetland identification and delineation, wetland classification systems, Indicators of wetland hydrology
– Ron Londré

Types of wetland hydrology and wetland hydroperiods
– Geof Parish

How hydrology influences the formation of hydric soils
– Geof Parish


Connectivity of wetlands to ground water and surface waters, nutrient flow, and carbon cycling
– Geof Parish

Hydrology as a force that structures plant communities
– Ron Londré


Influence of storm water on wetlands
– Ron Londré

Restoring the hydrology of a wetland
– Geof Parish

Day 2: Field Trip: UW-Milwaukee Field Station / Cedarburg Bog

Gather in UWM School of Cont. Ed. classroom and prepare to board shuttle or personal vehicles

Board shuttle and travel to the Cedarburg Bog

Gather at field station classroom and discuss characteristics of the Cedarburg Bog

Tour the wetlands of the Field Station grounds and the Sapa Bog to investigate and learn about hydrology


Tours the wetlands of the Cedarburg Bog to investigate and learn about hydrology

Board shuttle and return back

Dates and locations to be announced.