Browse 2026 provisional lake observations by location, variable, device and sampling depth.
They describe sampled water conditions, including temperature, oxygen and pigment signals. The interpretation below changes with your chosen series. A single signal cannot establish toxins, water safety or the cause of a change.
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| Date | Mean | Minimum | Maximum | Records | With QA notes |
|---|
Each card selects the method with the latest date, then the longest record when dates tie. Cards can use different methods; read each method label. The newest day may still be incomplete.
What was measured: daily mean from 96 numeric records; range 15.67–16.89 °C.
Compared with 2026-10-17: 0.68 °C lower. This compares two sampled dates, not a proven trend.
What it means: Temperature describes the water’s thermal conditions. It influences biological activity and how much oxygen water can hold. A lower reading means cooler sampled water, not automatically better water quality.
cb75 · site b · depth 1 m · 0 records with QA notes.
What was measured: daily mean from 96 numeric records; range 6.76–7.32 mg/L.
Compared with 2026-10-17: 0.12 mg/L higher. This compares two sampled dates, not a proven trend.
What it means: This is oxygen available in the water, expressed in mg/L. Aquatic animals depend on it. Oxygen can vary with depth, temperature, mixing, photosynthesis and decomposition. The retained minimum in this group is above 5 mg/L. That narrow observation is not a whole-waterbody or water-safety assessment.
cb75 · site b · depth 1 m · 0 records with QA notes.
What was measured: daily mean from 88 numeric records; range 0.30–0.60 RFU.
Compared with 2026-10-17: 0.04 RFU higher. This compares two sampled dates, not a proven trend.
What it means: Phycocyanin is a pigment associated with cyanobacteria. Its fluorescence is useful as a screening signal. RFU is a sensor response, not a toxin concentration.
cb75 · site b · depth 1 m · 0 records with QA notes.
What was measured: daily mean from 95 numeric records; range 0.50–3.50 RFU.
Compared with 2026-10-17: 0.42 RFU higher. This compares two sampled dates, not a proven trend.
What it means: Chlorophyll is a photosynthetic pigment. Fluorescence gives a signal related to pigment-bearing material; some algae are a normal part of aquatic food webs.
cb75 · site b · depth 1 m · 0 records with QA notes.