Clear Lake Water Quality Data 1998-2011
Sources:  1998-2000 Data - Clear Lake Diagnostic and Feasibility Study (ISU/IDNR) - samples collected twice per month Apr.-Oct.
2004-2010 Data - CLEAR Project/IDNR monitoring - samples collected twice per month Apr.- Oct.
2011 Data - CLEAR Project/IDNR monitoring - samples collected twice per month May - Sept.
   Total P (phosphorus) is a nutrient which promotes algae growth.  Secchi disk depth is a means of measuring water clarity.
   TSS is an indicator of the amount of sediment particles in water. Chlorophyll a is an indicator for the amount of algae in the water.
Ventura Marsh East (Outflow) Water Quality Data 1998-2011
Source:  1998-2000 Data - Clear Lake Diagnostic and Feasibility Study (ISU/IDNR) - samples collected twice per month
2003 Data - Samples collected by Ventura FFA as part as a class project.  Samples analyzed by UHL
2004-2010 Data - CLEAR Project/IDNR monitoring - samples collected twice per month Apr. - Oct.
2011 Data - CLEAR Project/IDNR monitoring - samples collected twice per month May - Sept.