Brock Reservoir Inlet Near Calexico, CA

USGS Site No: 09527630 • Imperial County, CA

Brock Reservoir Inlet Near Calexico, CA is currently at 4 cfs (Low — 17th percentile for this date) . Gage height: 24.57 ft.

Reading from

4
CFS Discharge
24.57
Gage Height (ft)
Low
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 1
25th Low threshold 9 Today: 4 cfs
50th (Median) Normal (median) 47
75th High threshold 83
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.

1.1k 572 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 19 —
May 27, 2026 18 —
May 26, 2026 15 —
May 25, 2026 13 —
May 24, 2026 5 —
May 23, 2026 602 —
May 22, 2026 969 —
May 21, 2026 381 —
May 20, 2026 344 —
May 19, 2026 48 —
May 18, 2026 56 —
May 17, 2026 70 —
May 16, 2026 11 —
May 15, 2026 3 —
Apr 20, 2026 5 —
Apr 19, 2026 114 —
Apr 18, 2026 605 —
Apr 17, 2026 1,060 —
Apr 16, 2026 298 —
Apr 15, 2026 176 —
Apr 14, 2026 31 —
Apr 13, 2026 40 —
Apr 12, 2026 355 —
Apr 11, 2026 9 —
Apr 10, 2026 9 —
Apr 9, 2026 12 —
Apr 8, 2026 8 —
Apr 7, 2026 14 —
Apr 6, 2026 237 —
Apr 5, 2026 1,040 —

Station Information

USGS Site No
09527630
State
CA
County
Imperial County
Coordinates
32.7095, -115.0254
Datum (ft)
160.0
HUC Code
18100204
View on USGS NWIS →

Recent Extremes

Max discharge
1,590 cfs
Aug 19, 2025
Min discharge
1 cfs
Sep 6, 2025

Computed from the local daily-values archive.

Nearby Gauges

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