Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 8 November 2025

    Kishwaukee River South Branch at Russell Woods by Rachel Ford

    The water level today was very low and didn't appear to be moving quickly.

  • 8 November 2025

    Rock Run Preserve by Catherine Offerman

    First observation. Clear pond surrounded by trees and wetland on a popular walking trail.

  • 7 November 2025

    West Branch Du Page River by Lawrence Hjorth

    The water level was lower than average. The Sample was taken from the south side of Ogden Ave. in the middle of the bridge.

  • 7 November 2025

    Turnmill Pond - Smythe Settlement by Steve Slivka

    Record high chloride reading for this location. Might have obtained a sample too close to the shore. Will use an extension device and get a sample farther from the shore in December.

  • 7 November 2025

    Trinity South Pond - Smythe Settlement by Steve Slivka

    DUPLICATE TEST: Both strips show 5.2/254 PPM

  • 7 November 2025

    Long Run Creek - Homer Glen, IL by Greg Vejvoda

    First sample of the 2025 - 2026 collection season. The weather for October and early November has had above average temperatures and has been relatively dry.

  • 7 November 2025

    Timber Ridge Forest Preserve by Andy Culbertson

    Photos: - The trail leading to the bridge with a few hikers in the distance. - A wide-angle view of the creek looking north from the bridge. - A view down to the water with my bucket hanging from a rope. - My two readings. Both are 125 PPM. The trail was very slightly damp from the rain, packed rather than soft. Leaves were falling. The water had a slight fresh, organic smell. I saw about 10 trail users in the 15 or so minutes I was there.

  • 7 November 2025

    Lake Charles at Beach Inlet by Darlene Garay

    This is a duplicate test. the initial (Main) test strip does not match the duplicate test strip. the Initial reading was 57 PPM and this duplicate was 49 PPM

  • 7 November 2025

    Lake Charles at Beach Inlet by Darlene Garay

    wind was blowing so hard that the inlet was effectively behaving like an outlet This is the Main test. the initial (Main) test strip does not match the duplicate test strip. the Initial reading was 57 PPM and this duplicate was 49 PPM

  • 7 November 2025

    Ferson Creek Park by Rod Allen

    Flow rate and rain fall from USGS station located about 2mi upstream, on Randall Road

  • 7 November 2025

    Mill Creek at bike trail bridge by Rod Allen

    Rain fall and stream flow data from USGS gauge located upstream about 5km

  • 7 November 2025

    Bayou Path Dr Stream in Atwater Subdivision by Lisa Hjorth

    The PPM was rounded up, although it barely reached the QT 3.6 / PPM 137. The inflow from the large pond was obstructed by what appears to be intentional damming perhaps by a muskrat. Although no muskrat was observed, the mud, sticks, and stones did not appear to have been done by wind and waves. The HOA was notified. The obstructed inflow did reduce the water flowing at the test site (outflow). The outflow was not measured; this observation is based on the lack of water ripples observed in the past. This data was collected prior to the first snowfall which occurred on 11.08 -09.2025

  • 7 November 2025

    Frank Holten State Park by Jen Hemphill

    Water quality taken with EXO2.