Chloride ppm
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328.0
River Park Boathouse : Chicago River
Chicago, Illinois, United States
Observed by
Susanna Lang
- Observed on: Mon, 20 Mar 2023 20:06:51 +0000
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Associated with:
Winter Chloride Watchers - Lat: 41.9731813
- Lng: -87.7017242
Observation report
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Notes
The usual large number of mallards, two geese, a gull.