Ellis River at South Andover, Maine
USGS Site No: 01054300 • Ellis River • Oxford County, ME
Ellis River at South Andover, Maine on the Ellis River is currently at 158 cfs (Normal — 48th percentile for this date) . Gage height: 5.86 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 | 74 | |
| 25th | Low threshold | 112 | |
| 50th (Median) | Normal (median) | 162 | Today: 158 cfs |
| 75th | High threshold | 253 | |
| 95th | Very High threshold | 760 |
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 | 182 | — |
| May 27, 2026 | 226 | — |
| May 26, 2026 | 310 | — |
| May 25, 2026 | 246 | — |
| May 24, 2026 | 168 | — |
| May 23, 2026 | 189 | — |
| May 22, 2026 | 218 | — |
| May 21, 2026 | 257 | — |
| May 20, 2026 | 313 | — |
| May 19, 2026 | 372 | — |
| May 18, 2026 | 450 | — |
| May 17, 2026 | 617 | — |
| May 16, 2026 | 1,130 | — |
| May 15, 2026 | 1,580 | — |
| Apr 21, 2026 | 624 | — |
| Apr 20, 2026 | 888 | — |
| Apr 19, 2026 | 782 | — |
| Apr 18, 2026 | 1,010 | — |
| Apr 17, 2026 | 1,490 | — |
| Apr 16, 2026 | 888 | — |
| Apr 15, 2026 | 1,070 | — |
| Apr 14, 2026 | 914 | — |
| Apr 13, 2026 | 579 | — |
| Apr 12, 2026 | 511 | — |
| Apr 11, 2026 | 618 | — |
| Apr 10, 2026 | 412 | — |
| Apr 9, 2026 | 391 | — |
| Apr 8, 2026 | 443 | — |
| Apr 7, 2026 | 567 | — |
| Apr 6, 2026 | 833 | — |
Station Information
- USGS Site No
- 01054300
- State
- ME
- County
- Oxford County
- Coordinates
- 44.5933, -70.7331
- Drainage Area
- 131 mi²
- Datum (ft)
- 619.2
- HUC Code
- 01040002
Flood Stage Thresholds
- Action Stage
- 14.0 ft
- Flood Stage
- 16.0 ft
- Moderate Flood
- 18.0 ft
- Major Flood
- 19.0 ft
Currently 10.14 ft below flood stage.
Recent Extremes
- Max discharge
-
1,580 cfsMay 15, 2026
- Min discharge
-
7 cfsSep 21, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Swift River Near Roxbury, MaineNormal7.9 mi · 112 cfs
-
Androscoggin River at Rumford, MaineNormal9.7 mi · 3,380 cfs
-
Wild River at Gilead, MaineNormal18.6 mi · 104 cfs
-
Sandy River Near Madrid, MaineNormal22.0 mi · 45 cfs
-
Little Androscoggin River Near South Paris, MaineNormal22.2 mi · 82 cfs