Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 21 February 2025

    Prairie DuPont Creek @ Zingg Bridge by Greg Kimutis

    Some open water where there is a riffle

  • 20 February 2025

    Bourbonnais Creek Upstream by ONU Earth & Space Sciences River Keepers

  • 18 February 2025

    Waubonsie Creek by Mary Theodor

    The creek was ice covered and I was required to take my sample from a location which was 500 feet upstream from my usual spot.

  • 18 February 2025

    Morgan Creek at Morgan Creek Park by Alyssa Theodor

    The creek was almost completely iced over. Brush had very recently been cleared on the south side of the creek.

  • 17 February 2025

    Villa Ave Bridge at Sugar Creek by Joe Neilly

    Chloride level was much higher than maximum of test strips. Sample taken below bridge where creek was not frozen.

  • 17 February 2025

    West Ridge Nature Park Pond- North by Margaret (Maggie) Scholle

    Regular location had significant ice cover and could not sample surface, shifted site ~200m south along the shore where the creek meets the pond.

  • 16 February 2025

    Lily Cache Creek by John Griffis

    Depth was 0.15m. Creek half frozen over. A pair of mallard ducks were resting on the ice.

  • 16 February 2025

    Lily Cache Creek by John Griffis

    Depth 0.13 m. Creek half frozen over.

  • 16 February 2025

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

    The water level in the creek increased from my previous observation.

  • 15 February 2025

    West branch of DuPage river at Beecher Rd, Winfield by Chris Thomson

  • 15 February 2025

    East Branch DuPage River at East Branch Forest Preserve by Ralph Watkins

  • 15 February 2025

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

    no evidence of salt on local roads; ice free areas about 1/3 of total stream surface