Water Quality Assessment Tool

Enter your pond's physicochemical measurements to calculate a weighted Water Quality Score and Eutrophication Risk rating — grounded in peer-reviewed science.

13 Parameters Weighted Scoring Model Eutrophication Risk Engine Peer-Reviewed Thresholds

Water Quality Score (WQS): Each parameter is classified as Good, Moderate, or Poor against peer-reviewed thresholds. Scores of 100, 60, or 20 are assigned and multiplied by parameter weights, then summed to give a final score from 0–100.

Eutrophication Risk is assessed independently using rule-based logic on Phosphate, Dissolved Oxygen, and Nitrate — the three parameters most predictive of eutrophication events.

Classifications: 80–100 = Excellent · 60–80 = Good · 40–60 = Moderate · <40 = Poor

Thresholds sourced from Boyd (2019), Carlson TSI (1977), Elser et al. (2022), US EPA, WHO, and MSc experimental data. For educational and indicative use.

Load scenario:
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Assessment Results
Water Quality Score
Eutrophication Risk

Parameter Breakdown
bar width reflects score (Good=100, Mod=60, Poor=20)