Brock Reservoir Outlet Near Calexico, CA

USGS Site No: 09527660 • Imperial County, CA

Brock Reservoir Outlet Near Calexico, CA is currently at 11 cfs (Normal — 27th percentile for this date) . Gage height: 25.51 ft.

Reading from

11
CFS Discharge
25.51
Gage Height (ft)
Normal
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 2
25th Low threshold 7
50th (Median) Normal (median) 64 Today: 11 cfs
75th High threshold 287
95th Very High threshold 0

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

744 372 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 -2 —
May 27, 2026 609 —
May 26, 2026 409 —
May 25, 2026 471 —
May 24, 2026 34 —
May 23, 2026 3 —
May 22, 2026 8 —
May 21, 2026 -4 —
May 20, 2026 -10 —
May 19, 2026 20 —
May 18, 2026 235 —
May 17, 2026 246 —
May 16, 2026 330 —
May 15, 2026 689 —
Apr 20, 2026 4 —
Apr 19, 2026 9 —
Apr 18, 2026 -1 —
Apr 17, 2026 6 —
Apr 16, 2026 25 —
Apr 15, 2026 -1 —
Apr 14, 2026 224 —
Apr 13, 2026 70 —
Apr 12, 2026 248 —
Apr 11, 2026 469 —
Apr 10, 2026 446 —
Apr 9, 2026 414 —
Apr 8, 2026 582 —
Apr 7, 2026 176 —
Apr 6, 2026 3 —
Apr 5, 2026 1 —

Station Information

USGS Site No
09527660
State
CA
County
Imperial County
Coordinates
32.7058, -115.0343
Datum (ft)
97.9
HUC Code
18100204
View on USGS NWIS →

Recent Extremes

Max discharge
1,040 cfs
Mar 13, 2026
Min discharge
-20 cfs
May 7, 2025

Computed from the local daily-values archive.

Nearby Gauges

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