East Branch Penobscot River HUC8 01020002
A 2,900 km² sub-basin of the New England region in ME. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
50
Moderate
Drought index
296
Severe
Area in D2+
96.12%
0% exceptional (D4)
Gauges below normal
50%
of 2 reporting
Median flow
37%
p19 of record
Water assets
636
2 springs · 20 wells
USGS gauges (3)
- Seboeis River near Shin Pond, Maine0102920022 cfsp10 · much below normal
- East Branch Penobscot River at Grindstone, Maine01029500535 cfsp27 · normal
- E. Br. Penobscot River below Grand Lake Matagamon01029100190 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-18 | 296 | 96.12 | 1/2 | p19 |
| 2026-10-17 | 296 | 96.12 | 1/2 | p19 |
| 2026-10-16 | 296 | 96.12 | 1/2 | p23 |
| 2026-10-15 | 296 | 96.1 | 1/2 | p28 |
| 2026-10-14 | 296 | 96.1 | 2/2 | p9 |
| 2026-10-13 | 296 | 96.1 | 2/2 | p8 |
| 2026-10-12 | 296 | 96.1 | 2/2 | p12 |
| 2026-10-11 | 296 | 96.1 | 1/2 | p17 |
| 2026-10-10 | 296 | 96.1 | 1/2 | p17 |
| 2026-10-09 | 296 | 96.1 | 1/2 | p16 |
| 2026-10-08 | 200 | 0 | 1/2 | p16 |
| 2026-10-07 | 200 | 0 | 1/2 | p18 |
| 2026-10-06 | 200 | 0 | 2/2 | p13 |
| 2026-10-05 | 200 | 0 | 2/2 | p13 |
Top water assets
- 67Wassataquoik Streamriver
- 67Wassataquoik Streamriver
- 67Wassataquoik Streamriver
- 67Wassataquoik Streamriver
- 67Wassataquoik Streamriver
- 67Wassataquoik Streamriver
- 67Wassataquoik Streamriver
- 65South Branch Trout Brookriver
- 65Seboeis Riverriver
- 65East Branch Penobscot Riverriver