Chloride ppm
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43.0
Big Rock Forest Preserve : Big Rock Creek
Big Rock, Illinois, United States
Observed by
Ryan Kriz
- Observed on: Fri, 18 Apr 2025 08:50:00 -0500
- Testers Ryan Kriz, Daisy Kriz
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Associated with:
National Great Rivers : Winter Chloride Watch - Lat: 41.7374717
- Lng: -88.5102796
Observation report
See trends at this locationWater quality tests
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Latest photos
Notes
Second test strip used and reflected 50 ppm. See pictures, both test strips were very close.