The E. coli and fecal coliform levels in Crystal Lake are within normal limits, according to the most recent test results collected on July 3, 2020.
A previous water sample taken Wednesday, July 1, exceeded acceptable bacteria levels at a freshwater beach. We test for E. coli and fecal coliform. The accepted level of E. coli for a single sample is 235 cfu/100 ml or below. The accepted level of fecal coliform is 200 cfu/100 ml or below. (CFU stands for colony-forming units, the unit of measure used for samples like this.)