Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 13 March 2024

    Chicago River North Branch Goose Island by Jeff Shelden

  • 11 March 2024

    Knolls Pond at Knolls Park by Nancy Buffenmyer

    Duplicate test strip: also 4.4 Quantab units = 329

  • 11 March 2024

    River Park Boathouse by Susanna Lang

    Mallards, geese, seagulls, goldeneyes engaging in mating behavior (a little south of here). Fishermen on both sides of the river. Strong outflow from the canal. Very hard to get a good photo in this wind.

  • 11 March 2024

    Veteran Acres - Sterne Woods (Oakwoods Lodge) by Far Syed

    It seems like the higher the warmth, the more increase in chlorine levels. Probably due to the chlorine levels in this pond, the geese were swimming far from the chlorine content!

  • 11 March 2024

    Jon Duerr Forest Preserve Fox River by Julie Chadwick

    There are just a few geese on the water downstream. The ground is slightly muddy.

  • 11 March 2024

    Prairie DuPont Creek @ Zingg Bridge by Greg Kimutis

  • 11 March 2024

    Blackwell Forest Preserve Silver Lake by Ken List

    Secondary test for this site: chloride is 48 mg/L, same as initial test.

  • 11 March 2024

    Herrick Lake by Ken List

    Secondary test for this site: chloride is 170 mg/L, same as initial test.

  • 11 March 2024

    West Branch DuPage River by Ken List

    Secondary test for this site: chloride is 199 mg/L, same as initial test.

  • 11 March 2024

    Pond at Briarcliff Neighborhood Beach by Lainey Howard

  • 10 March 2024

    Lies Road Crossing of Kline Creek by David Bohnsack

    Water levels are high with 5.66 cm of rain in the last 6 days.

  • 10 March 2024

    Thunderbird Trail Crossing of Kline Creek by David Bohnsack

    Water levels are high with 5.66 cm of rain in the last 6 days. Extensive upstream bank work in progress.

  • 10 March 2024

    Sangamon River Forest Preserve site by Bruce M Colravy

    Although the chloride value was entered at 28ppm, the actual value was less than that, because the conversion chart would not indicate lower than 28ppm. Water levels were very high as a result of all day rain two days ago.