Test Results
Test Results as of September 2, 2011
- IDEM Microcystin Results [PDF] (Results from 09/02/2011)
- IDEM Cyanophyte Counts [PDF] (Results from 09/02/2011)
- Grace College Kosciusko County Lake Results [PDF] (Results from 08/18/2011)
- Indiana Clean Lakes Program Cyanobacteria & Microcystin Results [PDF] (Results from 08/18/2011)
Cell Count and Toxin Guide
Cell Counts:
For protection of human health, the World Health Organization uses a guideline level of greater than 100,000 cells per milliliter (cells/ml) for a high risk health alert in recreational waters.
Toxin Production:
- <4 parts per billion (ppb): Very low/no risk. Corresponds to World Health Organization Level 1 Recreational Water Guideline. Use common sense practices.
- 4-20 parts per billion (ppb): Low to moderate risk of adverse health affects. Corresponds to World Health Organization Level 2 Recreational Water Guideline. Reduce recreational contact with water.
- >20 parts per billion (ppb): Seriously consider avoiding contact with water until levels of toxin decrease.
