Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 13 January 2026

    Springbrook Creek @ N Circle Ave, Bloomingdale by Elizabeth Bolivar

  • 13 January 2026

    Winfield Creek at Emerson School by Maureen Keil

    We have had ducks on the creek all winter. A lot of brush is clogging the culvert under this bridge. On the other side of the bridge an entire bicycle and a couple of sports balls are tangled in the debris. The city brined the roads today in anticipation of the next potential light snow fall projected for the next three days

  • 13 January 2026

    Glen Crest Creek - Lincoln Hill by Richard Whitney

    Creek is starting to be impacted by fallen tree, which is trapping debris. If left alone, a dam will form. Note the floating exercise ball in the water.

  • 13 January 2026

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

    Lower than usual reading. Melting surface ice in lake and rain earlier in the week. Normal is 209-226 PPM - - - - - - - - - - - - - - - - - - See Lake Killarney outflow data. - - - - - - - - - - - - - - - - - - Historically low reading at Lake Killarney dam. Probably due to melting surface ice and sampling near the surface + recent rainfalls. Normal is 209-226 PPM at lake as all the influent creeks are at that level, including my well water.

  • 13 January 2026

    Ron Haimbaugh by Ron Haimbaugh

    Water level was high because over the last week we had excessive rainfall. Note, Nitrite reading was zero. Some trash in the water. The last few days have been exceptionally warm.

  • 13 January 2026

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

    Historically low reading. Probably due to melting surface ice and sampling near the surface and recent rainfalls. Normal is 209-226 PPM as all the influent creeks are at that level, including my well water.

  • 13 January 2026

    Lake Kakusha by Amy Brewer

    Yearly double check on first photo

  • 12 January 2026

    Fullersburg FP - Graue Mill Canoe / Kayak launch by Kevin Blair

  • 12 January 2026

    Bayou Path Dr Stream in Atwater Subdivision by Lisa Hjorth

    Duplicate test strips were done today and both readings were identical PPM's of 226. Water levels were higher than normal due to excessive rain on January 8 and 9, 2026. The stream was flowing well.