Reservoir · Victoria · Australia · BOM Water Data Online
Bostock Reservoir
20.4% full
Capacity
7.4 hm³
Volume stored
2 hm³
River
Moorabool River East Branch
Year completed
1954
Coordinates
37.602°S, 144.177°E
Last updated
2026-07-28
Current fill
20.4%vs 7 days ago
-0.1%losing
vs 1 year ago
+14.3%year-over-year
7-day trend
→stable
Data source: Bureau of Meteorology — Water Data Online (KiWIS) — daily mean storage volume, quality-controlled. Capacity from the BOM Water Storages ArcGIS layer (total design capacity in ML). Last reading: 2026-07-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -37.602, 144.177 · Open in Google Maps
About Bostock Reservoir
As of July 28, 2026, Bostock Reservoir is filled to 20.4% of its total capacity, holding roughly 2 hm³ of water out of a maximum 7 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 14.3 points above its level on the same date a year earlier.
Across the readings we hold for Bostock Reservoir — 1086 data points between July 30, 2023 and July 28, 2026 — the level has ranged from a low of 1.6% (December 23, 2025) to a high of 98.6% (September 11, 2023). On average the reservoir is fullest around August and at its lowest around July.
The dam at Bostock Reservoir was completed in 1954. It is operated by BOM primarily for water supply. It lies within the Moorabool River East Branch Basin basin at 37.602°S, 144.177°E.
Key facts
- Current fill level
- 20.4%
- Water stored
- 2 hm³
- Total capacity
- 7 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▲ 14.3 pts
- Primary use
- Water supply
- River
- Moorabool River East Branch
- River basin
- Moorabool River East Branch Basin
- Year completed
- 1954
- Operator
- BOM
- Coordinates
- 37.602°S, 144.177°E
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 20.4% | 2 |
| 27 Jul 2026 | 20.5% | 2 |
| 26 Jul 2026 | 20.6% | 2 |
| 25 Jul 2026 | 20.7% | 2 |
| 24 Jul 2026 | 20.8% | 2 |
| 23 Jul 2026 | 21.0% | 2 |
| 22 Jul 2026 | 21.1% | 2 |
| 21 Jul 2026 | 21.3% | 2 |
| 20 Jul 2026 | 21.4% | 2 |
| 19 Jul 2026 | 21.5% | 2 |
| 18 Jul 2026 | 21.5% | 2 |
| 17 Jul 2026 | 21.5% | 2 |
Frequently asked questions
What is the current water level of Bostock Reservoir?
As of July 28, 2026, Bostock Reservoir is at 20.4% of its capacity, holding approximately 2 hm³ of water, according to BOM data.
Is Bostock Reservoir reservoir full?
No. As of July 28, 2026, Bostock Reservoir is low at 20.4% of its capacity, so it is not full.
Is the water level at Bostock Reservoir rising or falling?
The level at Bostock Reservoir has been broadly stable over the latest week on record (-0.1 points).
How much water can Bostock Reservoir hold?
Bostock Reservoir has a total capacity of 7 hm³.
Where is Bostock Reservoir reservoir located?
Bostock Reservoir is located in Victoria, Australia, within the Moorabool River East Branch Basin basin (coordinates 37.602°S, 144.177°E).
When was Bostock Reservoir dam built?
The dam at Bostock Reservoir was completed in 1954.
What is Bostock Reservoir used for?
Bostock Reservoir is used primarily for water supply, and is managed by BOM.