East Hartley above Backwater near Caldwell, ID
USGS Site No: 132109867 • Canyon County, ID
East Hartley above Backwater near Caldwell, ID is currently at 61 cfs (Normal — 60th percentile for this date) . Gage height: 4.65 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 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 | 47 | |
| 25th | Low threshold | 54 | |
| 50th (Median) | Normal (median) | 60 | |
| 75th | High threshold | 63 | Today: 61 cfs |
| 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.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 65 | — |
| May 27, 2026 | 65 | — |
| May 26, 2026 | 66 | — |
| May 25, 2026 | 63 | — |
| May 24, 2026 | 65 | — |
| May 23, 2026 | 65 | — |
| May 22, 2026 | 67 | — |
| May 21, 2026 | 62 | — |
| May 20, 2026 | 62 | — |
| May 19, 2026 | 65 | — |
| May 18, 2026 | 66 | — |
| May 17, 2026 | 62 | — |
| May 16, 2026 | 60 | — |
| May 15, 2026 | 62 | — |
| Apr 20, 2026 | 56 | — |
| Apr 19, 2026 | 56 | — |
| Apr 18, 2026 | 56 | — |
| Apr 17, 2026 | 48 | — |
| Apr 16, 2026 | 41 | — |
| Apr 15, 2026 | 40 | — |
| Apr 14, 2026 | 37 | — |
| Apr 13, 2026 | 40 | — |
| Apr 12, 2026 | 33 | — |
| Apr 11, 2026 | 31 | — |
| Apr 10, 2026 | 29 | — |
| Apr 9, 2026 | 23 | — |
| Apr 8, 2026 | 22 | — |
| Apr 7, 2026 | 21 | — |
| Apr 6, 2026 | 18 | — |
| Apr 5, 2026 | 20 | — |
Station Information
- USGS Site No
- 132109867
- State
- ID
- County
- Canyon County
- Coordinates
- 43.7003, -116.6732
- Datum (ft)
- 2,359.4
- HUC Code
- 170501140409
Recent Extremes
- Max discharge
-
76 cfsOct 3, 2025
- Min discharge
-
12 cfsMar 11, 2026
Computed from the local daily-values archive.
Nearby Gauges
-
West Hartley Gulch near Caldwell IDVery Low0.6 mi · 21 cfs
-
Mason Creek at Caldwell IDNormal1.3 mi · 155 cfs
-
Boise River at Caldwell, IDNormal2.1 mi · 1,640 cfs
-
South Middleton Drain at Middleton IDNormal2.7 mi · 66 cfs
-
North Middleton Drain Mill Slough at Middleton IDNormal2.8 mi · 44 cfs