SANTA ANA R NR MENTONE (RIVER ONLY) CA

CALIFORNIA34.1083°N, -117.1006°W Updated 16 hr ago

FLOW RATE

25cfs

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

25cfs 70.5% vs avg

Optimal band: 21–29 cfs

PERIOD HIGH

618cfs

PERIOD LOW

1cfs

RUNNABLE

22%

last 1 year in band

Precipitation History

Your History · SANTA ANA R NR MENTONE (RIVER ONLY) CA

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34.1083, -117.1006

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DATA · USGS · NOAA · NWSUPDATED 2026-07-06 00:00 UTC

Site #11051499·USGS

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