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Hydrologic Data Collection & Analysis
The Hydrologic Studies Program of the Water Resources Division calculates flood and low flow discharges, provides hydrologic engineering support for Nonpoint Source Pollution projects, and conducts other types of hydrologic analyses in support of the department's water-related programs.

This page can be accessed as www.mi.gov/hydrology.


Information

• Presentations from the 2006 MSFA Conference

• Introduction to Hydrology

• The Hydrologic Cycle

• Glossary

• Michigan's Major Watersheds PDF icon

• Frequently Asked Questions - Hydrologic Studies

• Relevant Laws and Rules

• Drought Flow Fact Sheet PDF icon

• NFIP Map Modernization County Status

• Stormwater Management Guidebook

• Nonpoint Source Hydrologic Analysis

• Miscellaneous Discharge Measurements


Reports

• Computing Flood Discharges for Small Ungaged Watersheds

• General Guidelines for Hydrogeological Investigations PDF icon


Online Services

• Request a Flood or Low Flow Discharge Form

• Flood & Low Flow Discharge Reporting System

• Form to report a stream with zero flow PDF icon


DEQ Related Links

• USGS Publication: 100-Year Flood, It's All About Chance PDF icon

• NRCS National Engineering Handbook

• Michigan Committee for Severe Weather Awareness

• NWS North Central River Forecast Center

• FEMA flood maps and Flood Insurance Studies

• USGS Michigan Water Resources Home Page

• U.S. Army Corps of Engineers Hydrologic Engineering Center Software

• NWS Office of Hydrologic Development

• U. S. Army Corps of Engineers Detroit District


DEQ Title SW Water GIS

• Calculating Runoff Curve Numbers with GIS

• GIS Data for Michigan

• Online Maps - DNR


Quick Links
 •  Contact Information for Hydrologic Data Collection & Analysis
 •  Current river stages
 •  Michigan's Major Watersheds PDF icon

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