Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 3 February 2025

    Hickory Creek in Hickory Creek Forest Preserve, Will County by Loretta Cerkvenik

  • 3 February 2025

    Big Hollow Creek in Iris Park by Robert Rowe

    ice still on

  • 3 February 2025

    Woods Creek at Brookside Pedestrian Bridge by Brad Andresen

  • 3 February 2025

    Crabapple Lake at Morton Arboretum by Linda Heuser

    Quantab reading was below the scale so lowest value of ppm was recorded.

  • 3 February 2025

    Pond at Briarcliff Neighborhood Beach by Lainey Howard

    The test strip shows 1/4 to 1/2 of a quantab unit which is significantly lower than the lowest unit on the conversion chart, so real result should be between 0-32 ppm (closer to 0)

  • 2 February 2025

    Curtis Creek by Jean Reddington

    All ice and snow has finally melted from previous snow and freezing temperatures.

  • 2 February 2025

    River Park Boathouse by Susanna Lang

    Water was released down the canal into the river (see photos). Many geese and mallards, a few mergansers, two night herons (!!) just south of this location.

  • 2 February 2025

    Hickman's Creek @ Zingg & Seager Rd. by Greg Kimutis

    Chloride was less than 32ppm

  • 2 February 2025

    Copper Slough at Porter Park by Lainey Howard

    Small group of mallard ducks in the water

  • 1 February 2025

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

    After rain yesterday at 1/31, frozen creek melted, enabling water sampling.so far, reading being stable.