The role of the U.S. Geological Survey in Lake Michigan Diversion Accounting in Illinois, 1984-2010

Open-File Report 2012-1243
Prepared in cooperation with the U.S. Army Corps of Engineers-Chicago District
By: , and 

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Abstract

The State of Illinois' annual withdrawl from Lake Michigan is limited by a U.S. Supreme Court decree. The U.S. Geological Survey (USGS) is responsible for monitoring flows in the Chicago area waterway system (CAWS) as part of the Lake Michigan Diversion Accounting (LMDA) overseen by the U.S. Army Corps of Engineers, Chicago District. Every five years, the USGS streamgage practices in the CAWS are reviewed by a committee of practicing engineers and academics to ensure that the best engineering practices are implemented in accordance with the U.S. Supreme Court decree and as part of LMDA. This report provides a perspective on the role of the USGS in LMDA from 1984 to 2010 including the responses to the review committees. Six technical review committees have been convened by the U.S. Corps of Engineers to evaluate the key components of LMDA especially the USGS streamgages within the CAWS. Any changes in streamgaging practices at CAWS gaging stations require detailed analysis to ensure the change will not adversely affect the ability of the USGS to accurately monitor flows.

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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title The role of the U.S. Geological Survey in Lake Michigan Diversion Accounting in Illinois, 1984-2010
Series title Open-File Report
Series number 2012-1243
DOI 10.3133/ofr20121243
Year Published 2012
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Illinois Water Science Center
Description viii, 73 p.
Time Range Start 1984-01-01
Time Range End 2010-12-31
Country United States
State Illinois
City Chicago
Projection Albers Equal-Area Conic
Scale 100000
Online Only (Y/N) Y
Additional Online Files (Y/N) N
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