Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 28 November 2025

    Hudson Crossing Park by Kaelyn Groth

    A beautiful sunny day with clear flowing water and minimal people/animals.

  • 28 November 2025

    DuPage River at Riverwalk South Covered Bridge by Shelley Birdsong

    Cool day. Winter storm coming in. Construction on Washington bridge, just north of collection site, now complete.

  • 28 November 2025

    DuPage River Park - Small Pond - Site 2 by Leah Gladkowski

    Water was very low, but clear. Could see what looked like minnows or tadpoles swimming around.

  • 28 November 2025

    Blackberry Creek Forest Preserve by Ryan Kriz

    The first major snowfall in the area for the season began several hours after taking this water sample.

  • 28 November 2025

    Big Rock Forest Preserve by Ryan Kriz

    The first major snowfall in the area for the season began several hours after taking this water sample.

  • 27 November 2025

    Spring Brook Creek - N of Meacham Grove FP by Karen Snyder

    Both test strips tested the same at 164 ppm

  • 27 November 2025

    DuPage River Electric Park Launch by Lea Rodbarry

    5" snow expected in 2 days