Concord River HUC8 01070005
A 1,035 km² sub-basin of the New England region in MA. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
63
Moderate
Drought index
104
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
60%
of 5 reporting
Median flow
29%
p22 of record
Water assets
4,541
1 springs · 2,817 wells
USGS gauges (6)
- SUDBURY RIVER AT SAXONVILLE, MA0109853010 cfsp15 · below normal
- CONCORD R BELOW R MEADOW BROOK, AT LOWELL, MA0109950069 cfsp20 · below normal
- NASHOBA BROOK NEAR ACTON, MA010973000 cfsp22 · below normal
- COCHITUATE BK BL LAKE COCHITUATE AT FRAMINGHAM, MA010985001 cfsp26 · normal
- ASSABET RIVER AT MAYNARD, MA0109700034 cfsp48 · normal
- SUDBURY RIVER AT ASHLAND, MA010974803 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 104 | 0 | 3/5 | p22 |
Top water assets
- 65Hopkinton State Park Swimming Pool Damreservoir
- 65Barefoot Brook Damreservoir
- 65Grist Mill Damreservoir
- 65Framingham Reservoir No. 2 Damreservoir
- 65Lester G. Ross Damreservoir
- 65Nagog Pond Damreservoir
- 65Curve Street Damreservoir
- 65Snake Brook Damreservoir
- 65Assabet River At Maynard, Mariver
- 65Mill Pond Damreservoir