Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 18 November 2025

    Des Plaines River from Des Plaines Riverways DuPage FPD by Kevin Blair

  • 18 November 2025

    Fox River by Julie Chadwick

    The water on the north side of the island is calm, and the water level is very low. A flock of ducks took off from the water as I approached.

  • 17 November 2025

    Lake Killarney to Silver Lake Creek (Cary, IL, 60013) by Eberhard Veit

    Performed QC test with second strip. Results identical, QC passed.

  • 17 November 2025

    Prentiss Creek at Prentiss Street by Gloria Walsh-Rock

    First time - I hope everything looks correct.

  • 16 November 2025

    Prentiss Creek in Downers Grove (1911 Prentiss St.) by Patricia Weikersheimer

  • 16 November 2025

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

  • 15 November 2025

    Lake Katherine Nature Center & Botanic Garden by Michael Bielski

  • 15 November 2025

    Woodscreek Park: 3 Pipe Inlet, Ackman Rd and Golf Course Rd, Crystal Lake, Il by Songjie Su

    Warm last 2 days, 1 week after this season’s first snow with some accumulation.

  • 15 November 2025

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

    water clear but brown, with floating leaves and debris; little flow

  • 15 November 2025

    Kickapoo Creek Park, 2000 N. Jefferson St., Lincoln, IL pedestrian bridge on park road by Pamela Moriearty

    1.water low, with floating debris, leaves, slow flow 2. chloride strips with duplicate of Brainard Branch strip.

  • 15 November 2025

    Salt Creek (26th Street Woods) by Robert Wagner

    Water was clear and flowing at a steady, moderate pace.