E. coli Data

Bi-Weekly E. coli Report

E. coli data is updated weekly by the Lilly Center’s research team. We sample 14 streams every other week, all year round, and 7 beaches during the summer. You can learn more about E. coli by visiting these educational resources:

Weekly Results: Streams

The EPA’s safety threshold is 235 CFU/100 mL

ND – None Detected

– – –  Data unavailable for this sampling week 

Testing SiteDate Last SampledCFU/100 mL
Winona Lake Inflow: Peterson Ditch7/9/20261,723.9
Winona Lake Inflow: Keefer-Evans7/9/20261,203.2
Winona Lake Inflow: Cherry Creek7/9/20261,413.6
Winona Lake Outflow: Eagle Creek7/9/202657.3
Pike Lake Inflow: Deeds Creek7/9/2026435.2
Pike Lake Outflow: Lones Ditch7/9/2026105.0
Tippy Chain Inflow: Grassy Creek7/3/2026248.1
Tippy Chain Inflow: Tippecanoe River7/3/2026161.6
Tippy Chain Outflow: Tippecanoe River7/3/202642.2
Wawasee-Syracuse Inflow: Papakeechie7/3/2026325.5
Wawasee-Syracuse Inflow: Turkey Creek7/3/2026259.5
Wawsee-Syracuse: Inflow: Dillon Creek7/3/20261,732.9
Wawsee-Syracuse Inflow: Launer's Creek7/3/2026547.5
Wawasee-Syracuse Outflow: Turkey Creek7/3/202688.0

Weekly Results: Beaches

The EPA’s safety threshold is 235 CFU/100 mL

ND – None Detected

– – –  Data unavailable for this sampling week 

Testing SiteDate Last SampledCFU/100 mL
Winona Lake Beach7/1/2026866.4
Center Lake Beach7/1/2026344.8
Pike Lake Beach7/1/2026529.4
Webster Lake Beach7/1/2026488.4
Waubee Lake Beach7/1/202646.4
Syracuse Community Center Beach7/1/202619.9
Syracuse Hoy Beach7/1/202619.9

How does the Lilly Center test for E. coli?

The field research team collects water samples in sterile jars from streams and beaches. They use a gloved hand and a pole to collect the sample from upstream of where they are standing to avoid contamination from other sources. These samples are kept in a cooler to prevent the quantity of E. coli from changing while it is transported back to the Lilly Center’s research lab.

Matt Burlingame

Matt Burlingame

Assistant Director of Research

burlinmn@grace.edu 574-372-5287

Bio

Full data reports are available by contacting the Lilly Center’s assistant director of research, Matt Burlingame.