Dataset

Winter Chloride Watch

Dataset summary

Observations

31 January 2026

Salt Creek Greenway Trail (just south of North Avenue)

16 parameters tested

ice on, air temperature, algae, chloride, clarity, colour, current weather, current weather description, odour, water surface, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), water level, water use

31 January 2026

DuPage River Park - Small Pond - Site 2

12 parameters tested

ice on, air temperature, chloride, clarity, colour, current weather, current weather description, odour, water surface, weather in the past 24hrs, weather in the past 24hrs description, water level

31 January 2026

Forest Preserves of Cook County - Burnham, Illinois

5 parameters tested

ice on, current weather, current weather description, weather in the past 24hrs, weather in the past 24hrs description

31 January 2026

Winding Creek

10 parameters tested

air temperature, algae, chloride, clarity, colour, current weather, odour, pollution sources, weather in the past 24hrs, water level

31 January 2026

Forest Preserves of Cook County - Kickapoo Woods

5 parameters tested

ice on, current weather, current weather description, weather in the past 24hrs, weather in the past 24hrs description

31 January 2026

Bemis Woods Kayak Launch

10 parameters tested

ice on, air temperature, algae, chloride, clarity, current weather, current weather description, odour, weather in the past 24hrs, weather in the past 24hrs description

31 January 2026

DuPage River, West Branch

4 parameters tested

ice on, chloride, current weather, weather in the past 24hrs

31 January 2026

Jefferson Ave Bridge, Naperville, West Branch DuPage River

9 parameters tested

ice on, chloride, clarity, colour, current weather, current weather description, pollution sources, weather in the past 24hrs description, water level

31 January 2026

Lily Cache Creek at Rockhurst Rd

3 parameters tested

ice on, current weather, weather in the past 24hrs

31 January 2026

Lily Cache Creek at the Lily Cache Sports Field footbridge

3 parameters tested

ice on, current weather, weather in the past 24hrs

31 January 2026

South Branch Kish

6 parameters tested

ice on, air temperature, chloride, colour, current weather, water surface

31 January 2026

River park boat launch

15 parameters tested

ice on, air temperature, algae, chloride, clarity, colour, current weather, current weather description, odour, water surface, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, water level, water use

31 January 2026

Westernmost bridge in Dunning Read Natural Area Park

5 parameters tested

ice on, current weather, current weather description, weather in the past 24hrs, weather in the past 24hrs description

31 January 2026

West Branch DuPage River at Naperville Riverwalk

3 parameters tested

chloride, current weather, weather in the past 24hrs

31 January 2026

Yorkville- bicentennial riverfront park

12 parameters tested

ice on, algae, chloride, clarity, colour, current weather, current weather description, odour, water surface, pollution sources, weather in the past 24hrs, water use

31 January 2026

East Branch Poplar Creek

14 parameters tested

ice on, air temperature, algae, chloride, clarity, colour, current weather, current weather description, odour, water surface, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, water level

30 January 2026

Wigwam Hollow Creek, beside Indian Trail St, Macomb.

10 parameters tested

ice on, air temperature, algae, chloride, clarity, current weather, current weather description, odour, weather in the past 24hrs, water level

30 January 2026

Spring Brook Creek - N of Meacham Grove FP

5 parameters tested

air temperature, chloride, current weather, weather in the past 24hrs, water temperature

30 January 2026

Glen Crest Creek at Willowbrook Forest Preserve

6 parameters tested

air temperature, chloride, current weather, current weather description, weather in the past 24hrs, weather in the past 24hrs description

30 January 2026

Chicago River North Branch Goose Island

4 parameters tested

air temperature, chloride, current weather, weather in the past 24hrs