Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 11 December 2024

    North Branch Chicago River at Edgebrook Woods by Alan Matson

    First baseline test of season before snow starts. Always higher than I think it would be.

  • 11 December 2024

    Sandy Creek in Elgin Township Wetland preserve by Holly Hudson

    Creek water level low, still some flow, some ice on edges; generally above average temperatures in November, near average in first week of December, then above average over the four days prior to sampling

  • 10 December 2024

    Crystal Lake Outlet by Eric Trippe

    Easy access from sidewalk. Water was free flowing and no ice

  • 10 December 2024

    West Branch of the Dupage River - Weigand Riverfront Park Canoe Launch by Susan Goreczny

    River level low, sunny day

  • 10 December 2024

    Rock Run Creek by Andy Neill

    Much of the Rock Run Creek at this site near Essington Road Access, Joliet, IL, was covered in a thin sheet of ice, but has since melted completely with unseasonably high temperatures in past 72 hours in 50-60 degree F range.

  • 10 December 2024

    Creek Bend Pond by Lisa O'Brien

    Temperatures have been fluctuating from bitter cold to 50's over the last couple of weeks. Brief snow, but no need for salting. Rain event about 2 weeks ago. Test strip registered about .6, much less than expected, providing less than 30 ppm. Ice was thick enough couldn't get a lot of water and very close to edge of pond.

  • 9 December 2024

    Waubonsie Creek by Mary Theodor

    2 test strips were used to test for accuracy. Both had Quantab readings of 4.0 which convert to 164 PPM.

  • 9 December 2024

    Trinity South Pond - Smythe Settlement by Steve Slivka

    Received three inches of rain in November which might account for the monthly decrease in Chloride.

  • 9 December 2024

    Turnmill Pond - Smythe Settlement by Steve Slivka

    Water level higher due to 3 inches of rain in November. This probably caused chloride to fall from 341 ppm to 158 ppm.

  • 9 December 2024

    Army Trail West Pond - Smythe Settlement by Steve Slivka

    Received three inches of rain in November which might account for the monthly decrease in Chloride.

  • 9 December 2024

    Bayou Path Dr Stream in Atwater Subdivision by Lisa Hjorth

    The large pond (inflow) had some thin ice on it. The water flowed where I tested, so it was without ice. The city had salted the nearby road on 12.05.2024 following a mild snowfall.

  • 9 December 2024

    Lisle Community Park Boat Launch near Short St on East Branch DuPage River by S Neufelder

    Did a QC test today with a second test strip. The result was 3.4 Quantab units whereas the first test strip showed between 3.4 and 3.6 Quantab units. The last picture includes the second test strip to the right of the first test strip.

  • 9 December 2024

    Morgan Creek at Morgan Creek Park by Alyssa Theodor

    Used duplicate test strip to confirm results

  • 9 December 2024

    Sugar Run Creek by Loretta Cerkvenik

    Very thin ice covering <1/3 of surface.