Reservoir · Massachusetts · United States · USGS NWIS
Wachusett Reservoir
92.6% full
Capacity
246.05 hm³
Volume stored
228 hm³
Coordinates
42.385°N, 71.745°W
Last updated
2026-08-01
Current fill
92.6%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
Data source: USGS National Water Information System (NWIS) — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-08-01.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.385, -71.745 · Open in Google Maps
About Wachusett Reservoir
As of August 1, 2026, Wachusett Reservoir is filled to 92.6% of its total capacity, holding roughly 228 hm³ of water out of a maximum 246 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Wachusett Reservoir — 1 data points between August 1, 2026 and August 1, 2026 — the level has ranged from a low of 92.6% (August 1, 2026) to a high of 92.6% (August 1, 2026).
It is operated by MWRA primarily for water supply. It lies within the Massachusetts basin at 42.385°N, 71.745°W.
Key facts
- Current fill level
- 92.6%
- Water stored
- 228 hm³
- Total capacity
- 246 hm³
- 7-day change
- No change
- Primary use
- Water supply
- River basin
- Massachusetts
- Operator
- MWRA
- Coordinates
- 42.385°N, 71.745°W
- Last updated
- August 1, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 1 Aug 2026 | 92.6% | 228 |
Frequently asked questions
What is the current water level of Wachusett Reservoir?
As of August 1, 2026, Wachusett Reservoir is at 92.6% of its capacity, holding approximately 228 hm³ of water, according to MWRA (Massachusetts Water Resources Authority) data.
Is Wachusett Reservoir reservoir full?
No. As of August 1, 2026, Wachusett Reservoir is high at 92.6% of its capacity, so it is not full.
Is the water level at Wachusett Reservoir rising or falling?
The level at Wachusett Reservoir has been broadly stable over the latest week on record (0.0 points).
How much water can Wachusett Reservoir hold?
Wachusett Reservoir has a total capacity of 246 hm³.
Where is Wachusett Reservoir reservoir located?
Wachusett Reservoir is located in Massachusetts, United States, within the Massachusetts basin (coordinates 42.385°N, 71.745°W).
What is Wachusett Reservoir used for?
Wachusett Reservoir is used primarily for water supply, and is managed by MWRA.