Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 27 February 2026

    Lily Cache Creek by John Griffis

    Two chloride tab readings, 2 separate samples at the same site -- 5.0 and 4.6 (I took the 5.0 because I accidentally touched the orange stripe and dripped water on the second tab before taking the reading). Lily Cache Creek at Four Seasons West baseball fields: width (with my awesome shadow); upstream, downstream. Depth taken center stream.

  • 27 February 2026

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

    No snow cover, all accumulation from previous weeks has melted.

  • 27 February 2026

    West Branch DuPage River at Naperville Riverwalk by Amy Phillips

  • 26 February 2026

    Killjordan creek by Jumoke Ogunremi

    Two test strips were used on same water sample and the PPM values were the same.

  • 26 February 2026

    Wigwam Hollow Creek, beside Indian Trail St, Macomb. by Jumoke Ogunremi

    An second test strip was used in the same water sample and the same test result was observed

  • 26 February 2026

    St. Joseph's Creek @ 59th & Williams Street by Jon Yeater

    I did not get a reading in January, as creek was ice covered the entire month. Very dry February (Month totals: 0.12 inches of rain, & 0.21 inches of snow). Last snow event was 2/21

  • 26 February 2026

    Creek at Merry Meadows by James Weiss

    Chloride levels are below 29 ppm

  • 26 February 2026

    West College Drive (Rt 83) & S. 75 th Ave Palos Heights,Il 60463 by Kathy Janik

  • 26 February 2026

    DuPage River at South Hammel Woods Kayak Launch by Miranda Gollwitzer

  • 26 February 2026

    West bridge, Winfield Creek, Northside Park by Kate Fleming

    Quantab units read at 7.8 which is higher than the Quantab conversion chart readings.

  • 26 February 2026

    Killjordan creek by Jumoke Ogunremi

    Two different test strips were used on the same water sample and the ppm values were the same