Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 17 February 2026

    Lake Killarney outlet dam (Cary, IL, 60013) by Eberhard Veit

    Ice melt

  • 17 February 2026

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

    Oily sheen appears to be natural from decay of organic matter.

  • 17 February 2026

    Bloomington Normal Water Reclamation District (BNWRD) Sugar Creek Monitoring Site by Katie Vogler

  • 17 February 2026

    Thunderbird Trail Crossing of Klein Creek by David Bohnsack

    71%Humidity, 29.89 in Hg, 5 mph SW winds

  • 17 February 2026

    Fairview Park Sugar Creek Stewards Monitoring Site by Katie Vogler

  • 17 February 2026

    Raab Road Retention Basin/Small Pond by Katie Vogler

    Test results were higher than 641

  • 17 February 2026

    Bradford Lane Retention Basin #2 by Katie Vogler

    Tests results were higher than 641

  • 17 February 2026

    Plum Creek at Klemme by Jane Schulten

    Partial ice. Was able to sample from open free flowing water

  • 17 February 2026

    Bradford Lane Retention Basin #1 by Katie Vogler

    Chloride is higher than 641 as test showed 9.3 units

  • 17 February 2026

    Lies Road Crossing of Klein Creek by David Bohnsack

    72% Humidity, 29.90 in Hg, 5 mph SW winds

  • 17 February 2026

    Ratt Creek at Hanson Rd by Brad Andresen

    test results higher than the capacity of the test strips. Actual chloride level higher than 641 ppm.

  • 17 February 2026

    Arbor Lake at Morton Arb by Linda Heuser

    Quantab reading was 0.4, below the range on the conversion chart. The lowest value for ppm (28) was recorded. The lake was covered in ice, with enough breaks in it to obtain water for the sample.

  • 17 February 2026

    Long Run Creek - Homer Glen, IL by Greg Vejvoda

    Experiencing record warm air temperatures for mid February.

  • 17 February 2026

    Villa Ave Bridge at Sugar Creek by Joe Neilly

    Ice along edges of creek.

  • 16 February 2026

    Winfield Creek at Emerson School by Maureen Keil

    The creek looks so sad today--unusually low for this time of the year and clogged up. Mostly frozen, but with lots of branches and scum, half frozen, clogging up the culvert. Plastic trash sitting on the ice (plastic bottles mostly). There is a little bit of a current in the patches on top of the ice where there is muddy water. I've never seen such scummy muddy ice.