Dataset

Winter Chloride Watch

Dataset summary

Observations

1 May 2026

Salt Creek Greenway Trail (just south of North Avenue)

17 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 depth, water level, water use

1 May 2026

Lake Run at Nelson Lake in Dick Young Forest Preserve

7 parameters tested

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

1 May 2026

River Grove at Grand Ave

5 parameters tested

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

30 April 2026

Westernmost bridge in Dunning Read Natural Area Park

5 parameters tested

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

30 April 2026

Timber Trails Park pond

5 parameters tested

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

30 April 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 April 2026

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

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

30 April 2026

Woodland Rd. Creek

14 parameters tested

ice on, air temperature, algae, 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

30 April 2026

Pioneer Park

3 parameters tested

chloride, current weather, weather in the past 24hrs

30 April 2026

Winfield Creek at Emerson School

11 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

30 April 2026

Waubonsie Creek Trail Bridge

3 parameters tested

chloride, current weather, weather in the past 24hrs

30 April 2026

Klein Creek

6 parameters tested

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

30 April 2026

Newman Creek @ N Queen Anne Rd

7 parameters tested

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

30 April 2026

Nippersink Creek @ Rte 12 (west of State Park Rd intersection)

7 parameters tested

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

30 April 2026

North Branch Nippersink Creek @ W Solon Rd

7 parameters tested

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

30 April 2026

Glen Crest Creek at Willowbrook Forest Preserve

5 parameters tested

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

30 April 2026

Glen Crest Creek at Willowbrook Forest Preserve

5 parameters tested

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

30 April 2026

East Branch DuPage River at Hidden Lake Forest Preserve

4 parameters tested

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

30 April 2026

East Branch DuPage River at Hidden Lake Forest Preserve

6 parameters tested

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

29 April 2026

Molitor Bridge at Indian Creek

9 parameters tested

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