Unlimited Access. Try it Today! Your First 10 Days Always $0.99

A sample at the Highland Park lab

In this sample at the Highland Park lab, the small bubble-like growths on this filter indicate atypical bacterial growth from a presumptive test. In a normal circumstance, this would be swabbed and incubated for a confirmatory test that would indicate fecal or total coliform. Gregory Trotter, Chicago Tribune
Loading

72°