Dataset

Winter Chloride Watch

Dataset by National Great Rivers

Dataset summary

Observations

  • 21 February 2026

    South of Kaneville by Scott Meister

    Creek had been frozen for weeks until this past week.

  • 20 February 2026

    Spring Brook in St. James Farm Forest Preserve by Jay Gilbert

  • 20 February 2026

    Dean Nature Sanctuary by Sally Beaumont

    Weather was very warm the day before the test with slight rain overnight turning to brief snow showers. Very windy and cold on 2/20 and no ice on the pond.

  • 19 February 2026

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

  • 19 February 2026

    West branch of DuPage river at Beecher Rd, Winfield by Chris Thomson

  • 19 February 2026

    Des Plaines River from Des Plaines Riverways DuPage FPD by Kevin Blair

  • 18 February 2026

    Rogers St. by Steve Ruffolo

    Reading was above values on the card. Last night's rain likely washed all the extra salt and salt dust from the last few weeks, off the roads and into the creek.

  • 18 February 2026

    Ferson Creek Park, Route 31, Saint Charles, IL by Patricia Gawrys

  • 18 February 2026

    Inflow to East Lagoon at Montgomery to Faraday pedestrian bridge by WILLIAM MARTIN

  • 18 February 2026

    South Branch Kishwaukee River at College Ave. by WILLIAM MARTIN

  • 18 February 2026

    Glen Crest Creek - Lincoln Hill by Richard Whitney

    Creek water flow was slow, but steady. A short ways downstream, water surface is partially obstructed by fallen tree that is snagging debris that is brought by the water flow. I expect a small dam to result that will further impede the flow while raising the level of the water upstream, where the sample is collected.