Chloride ppm
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392.0
East Branch DuPage River at Hidden Lake Forest Preserve : East Branch DuPage River
Downers Grove, Illinois, United States
Observed by
Mark Thomas
- Observed on: Sun, 09 Mar 2025 14:35:00 -0500
- Testers Mark Thomas
-
Associated with:
National Great Rivers : Winter Chloride Watch - Lat: 41.825679
- Lng: -88.053081
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Notes
February 2025 sampling delayed due to personal reasons; unable to visit sampling site.