Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 15 November 2025

    Forest Preserves of Cook County - Burnham, Illinois by David Schmid

    Freezing temperatures last Sunday and Monday. Lake (Michigan) effect snow in the area. Trucks were on the main roads spreading salt.

  • 15 November 2025

    Forest Preserves of Cook County - Kickapoo Woods by David Schmid

    Freezing temperatures on Sunday and Monday of this week. This area was affected by lake (Michigan) effect snow. Trucks spread salt on major roads.

  • 14 November 2025

    Brookbank Rd bridge over St. Joseph creek in Downers Grove. by Steve Ruffolo

  • 13 November 2025

    Kenyon Woods Forest Preserve by Michelle Besch

    Water level was very low. Air was slightly crisp, smelled slightly moist.

  • 13 November 2025

    River Park Boathouse by Susanna Lang

    We've already had our first snow--last weekend, when I was out of town. When I came back Sunday evening, salt trucks were out.

  • 13 November 2025

    Kickapoo Creek at Vicary Bottom Park by Robert Rowe

    Training new water team members today;

  • 13 November 2025

    Ron Haimbaugh by Ron Haimbaugh

    No amphibians or reptiles because it's been cold at night and they are getting ready to hibernate. The water level is quite low and did not see any minnows. Water clarity was normal for this creek.

  • 13 November 2025

    Springbrook Creek @ N Circle Ave, Bloomingdale by Elizabeth Bolivar

    Lots of ducks up stream

  • 13 November 2025

    Oakton College by Tess Lesniak

    Ran this one twice for quality check, as seen in picture.

  • 12 November 2025

    Waubonsie Creek by Mary Theodor

    A large apartment complex was constructed alongside Waubonsie Creek near my collection site.