Dataset

Winter Chloride Watch

Dataset summary

Observations

25 January 2026

North Aurora Riverfront Park

6 parameters tested

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

25 January 2026

Downers Grove

6 parameters tested

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

24 January 2026

140 and 127 in Greenville

14 parameters tested

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

22 January 2026

Woodland Rd. Creek

7 parameters tested

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

22 January 2026

Nippersink Creek at the Keystone Landing in McHenry County Conservation District's Glacial Park Conservation Area

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

22 January 2026

Brainard's Branch, Grand Ave bridge between 19th and 20th Sts

4 parameters tested

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

22 January 2026

Salt Creek S Elmhurst canoe launch

12 parameters tested

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

22 January 2026

Kickapoo Creek Park, 2000 N. Jefferson St., Lincoln, IL pedestrian bridge on park road

4 parameters tested

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

22 January 2026

West Branch DuPage River

12 parameters tested

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

22 January 2026

Joliet, IL

12 parameters tested

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

21 January 2026

West bridge, Winfield Creek, Northside Park

13 parameters tested

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

21 January 2026

Ferson Creek at LeRoy Oakes FP Bridge

8 parameters tested

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

21 January 2026

DuPage River at Riverwalk South Covered Bridge

12 parameters tested

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

21 January 2026

Creek under Fairmount Ave, east side of bridge

12 parameters tested

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

21 January 2026

Fabyan Forest Preserve

5 parameters tested

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

21 January 2026

Rock Run Preserve

12 parameters tested

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

21 January 2026

Creek at Merry Meadows

12 parameters tested

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

21 January 2026

DuPage River at Riverwalk South Covered Bridge

12 parameters tested

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