Prairie DuPont Tributary
Millstadt, Illinois, United States
Location created by
Greg Kimutis
- Group: National Great Rivers : Winter Chloride Watch
- Site ID: R07017201
- Lat: 38.4850179
- Lng: -90.1015806
- Waterbody Type: Creek
- Timezone: America/Chicago
Latest photos
Observation tests summary
Air temperature
°C
11.7
Latest
9.8
Average
Water temperature
°C
13.0
Latest
11.0
Average
Chloride
ppm
44.0
Latest
36.8
Average
Conductivity
μS/cm
572
Latest
574
Average
pH (0-14)
8.3
Latest
8.0
Average
Ice On
- 2025-02-21
- 2024-01-16
Ice Off
- 2025-04-01
- 2025-03-01
- 2025-02-02
- 2025-01-01
- 2024-12-04
- 2024-05-01
- 2024-04-15
- 2024-03-30
- 2024-03-15
- 2024-03-11
- 2024-03-07
- 2024-02-29
- 2024-02-21
- 2024-02-15
- 2024-02-01
- 2024-01-13
- 2024-01-10
- 2024-01-01
- 2023-12-15
- 2023-12-02
- 2023-11-30