Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 31 December 2025

    Newman Creek @ N Queen Anne Rd by Cindy Skrukrud

    beaver dam upstream, collected sample at downstream

  • 31 December 2025

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

    water- green & sediment

  • 31 December 2025

    Lake Run at Nelson Lake in Dick Young Forest Preserve by Maureen Mrenna

    Stream iced over with water pooling in some areas under bridges. Water level much higher than in November. Was able to get water from where ice was thinner. It has been too cold for it to be melt I think but hit ice with hammer and more water bubbled up. Note- I was entirely on solid ground when I accessed this thin spot. (Did not stand on ice).

  • 30 December 2025

    South Branch of Kishwaukee River at N. 1st Street by Patty Ruback

  • 30 December 2025

    East Branch DuPage River at Hidden Lake Forest Preserve by Mark Thomas

  • 30 December 2025

    Glen Crest Creek at Willowbrook Forest Preserve by Mark Thomas

  • 29 December 2025

    Lily Cache Creek by John Griffis

    Lily Cache Creek at Van Horn Woods--width, downstream, upstream, chloride strip. Water level high--depth recorded at edge

  • 29 December 2025

    Lily Cache Creek by John Griffis

    Lily Cache Creek at Four Seasons baseball fields west--upstream, downstream, width, chloride strip

  • 29 December 2025

    Dammrich Rowing Center by Brooke Sprague

    Sorry about the weird date on the Post-It; not sure where my brain was. It should read 12/29/25.