American River at Discovery Park

Recent sample exceeded bacteria thresholds.

Last sampled: Jun 10, 2025 (330 days ago)

0.22 in of rain in the last 72 hours may have changed water quality since the last sample was taken.

How is this decided?

Map

Recent Rainfall

48h rain (advisory ≥ 1.00 in) 0.00 in
72h rain (advisory ≥ 0.50 in) 0.22 in

Bacteria Readings

IndicatorLatest30-day geomeanEPA limit
E. coli547 MPN/100mL≤235

Nearby Swim Spots

Data from: California Safe-to-Swim (ODbL 1.0), Open-Meteo — Precipitation (CC-BY 4.0)

Information provided for general guidance only. Conditions change rapidly. Swim at your own risk. Not medical advice.