Reservoir · Andhra Pradesh · India · CWC
Subsidiary Reservoir -I
32.0% full
Total capacity
60 hm³
Live storage
52 hm³
River
Pennar
Basin
Pennar
Operator
AP Water Resources Dept
Coordinates
14.846°N, 78.714°E
Last updated
2026-07-29
Current fill
32.0%vs 7 days ago
-0.5%losing
vs 1 year ago
N/A7-day trend
→stable
Weekly storage
Fill history — multi-year
About this reservoir
Data source
official
Storage data: CWC (Central Water Commission) Weekly Storage Bulletin, India.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 14.846, 78.714 · Open in Google Maps
About Subsidiary Reservoir -I
As of July 29, 2026, Subsidiary Reservoir -I is filled to 32.0% of its total capacity, holding roughly 19 hm³ of water out of a maximum 60 hm³. At this level the reservoir is low. Of that total, about 52 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-0.5 pts).
Across the readings we hold for Subsidiary Reservoir -I — 4 data points between July 2, 2026 and July 29, 2026 — the level has ranged from a low of 32.0% (July 29, 2026) to a high of 34.0% (July 2, 2026).
It is operated by AP Water Resources Dept. It lies within the Pennar basin at 14.846°N, 78.714°E.
Key facts
- Current fill level
- 32.0%
- Water stored
- 19 hm³
- Total capacity
- 60 hm³
- Usable capacity
- 52 hm³
- 7-day change
- ▼ 0.5 pts
- River
- Pennar
- River basin
- Pennar
- Operator
- AP Water Resources Dept
- Coordinates
- 14.846°N, 78.714°E
- Last updated
- July 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Jul 2026 | 32.0% | 19 |
| 22 Jul 2026 | 32.5% | 20 |
| 15 Jul 2026 | 33.0% | 20 |
| 2 Jul 2026 | 34.0% | 21 |
Frequently asked questions
What is the current water level of Subsidiary Reservoir -I?
As of July 29, 2026, Subsidiary Reservoir -I is at 32.0% of its capacity, holding approximately 19 hm³ of water, according to AP-WRIMS data.
Is Subsidiary Reservoir -I reservoir full?
No. As of July 29, 2026, Subsidiary Reservoir -I is low at 32.0% of its capacity, so it is not full.
Is the water level at Subsidiary Reservoir -I rising or falling?
The level at Subsidiary Reservoir -I has been broadly stable over the latest week on record (-0.5 points).
How much water can Subsidiary Reservoir -I hold?
Subsidiary Reservoir -I has a total capacity of 60 hm³, of which about 52 hm³ is usable storage.
Where is Subsidiary Reservoir -I reservoir located?
Subsidiary Reservoir -I is located in Andhra Pradesh, India, within the Pennar basin (coordinates 14.846°N, 78.714°E).