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You can access information about different research and studies that have been completed at Clear Lake below. 



Web Sites:

Clear Lake Diagnostic and Feasibility Study - ISU 2001
View the Clear Lake Diagnostic and Feasibility Study here! The study describes the current conditions of the lake and gives suggestions for improvements. This is a very detailed document, if you would like general information read the executive summary or go to the Lake Restoration Suggestions Newsletter

Clear Lake Surface Water Monitoring (2004 - 2007)
Water quality information from 3 sites on Clear Lake, 2 sites on Ventura Marsh, and 7 tributary sites in the watershed are presented in this database. Samples were collected twice per month throughout the open water season. Please note the file contains multiple worksheets shown as tabs on bottom of page.

Iowa Lakes Survey - ISU (2000 - 2007)
The Iowa Lakes Survey collects water quality information from 132 lakes annually. The study began in 2000 and is scheduled to end after 5 years of sampling. Three water samples are collected from each of the lakes annually and the results are presented in this report.

DNR Beach Monitoring Program
Bacteria Levels at the State Park Swim Beaches (Updated Weekly)

Clear Lake Chamber of Commerce
General Information about the community of Clear Lake

Download Files:

ISU Study Executive Summary
The executive summary is a 10 page Microsoft Word document and will open in a new window.  If you are accessing the internet with a dial-up modem, it may take a long time to transmit this file. Please note that this file is also available on the ISU Web site linked above. 


CLEAR Project  ~  PO Box 863  ~  Clear Lake, IA 50428  ~  641-923-2837 Ext.3