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Ground Water Level in Jammalamadugu Mandal
Latest groundwater level and trends for Jammalamadugu Mandal.
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Average of 2 monitoring wells.
2 of 2 expected wells reported Historical network: 2 wellsWhat does this mean?
July 2025 groundwater in Jammalamadugu Mandal averaged 8.47 m bgl. It was 0.91 m deeper than the same month last year. It was 1.77 m shallower than the recent historical reference. Improving direction. The trend is statistically significant.
How to read m bgl
Lower m bgl means shallower groundwater.
Higher m bgl means deeper groundwater.
What does m bgl mean?
How to read m bgl
Lower m bgl means shallower groundwater.
Higher m bgl means deeper groundwater.
Recent groundwater levels
Groundwater levels rise and fall through the year. We compare the same month across years when assessing change.
Lower m bgl means shallower groundwater. Gaps show months with no usable value.
Monthly data snapshot
| Month | Mean | Wells |
|---|---|---|
| July 2025 | 8.47 m bgl | 2 |
| June 2025 | 7.44 m bgl | 2 |
| May 2025 | No usable data | — |
| April 2025 | 7.95 m bgl | 2 |
| March 2025 | 8.12 m bgl | 2 |
| February 2025 | 7.54 m bgl | 2 |
View more monthly data
| Month | Mean depth | Wells | Coverage |
|---|---|---|---|
| July 2025 | 8.47 m bgl | 2 | 100% |
| June 2025 | 7.44 m bgl | 2 | 100% |
| April 2025 | 7.95 m bgl | 2 | 100% |
| March 2025 | 8.12 m bgl | 2 | 100% |
| February 2025 | 7.54 m bgl | 2 | 100% |
| January 2025 | 7.80 m bgl | 2 | 100% |
| December 2024 | 8.39 m bgl | 1 | 50% |
| November 2024 | 7.58 m bgl | 2 | 100% |
| October 2024 | 7.28 m bgl | 2 | 100% |
| September 2024 | 7.36 m bgl | 1 | 50% |
| August 2024 | 8.57 m bgl | 2 | 100% |
| July 2024 | 8.50 m bgl | 1 | 50% |
Year on year comparison
- July 2025 mean
- 9.41 m bgl
- July 2024
- 8.50 m bgl
- Change
- 0.91 m deeper
- Status
- Declined
- Comparable wells
- 1
Historical reference
The current value below uses only wells with enough July history.
- Current mean for 1 comparison wells
- 7.53 m bgl
- Historical July mean
- 9.30 m bgl
- Difference
- 1.77 m shallower
- Reference period
- 2015 to 2022
- Years represented
- 8
Long term July trend
Improving direction. The trend is statistically significant.
- Period
- 2016 to 2025
- July observations represented
- 8
- Slope
- -0.470 m per year
- Equivalent
- -47.0 cm per year
- Statistical test
- p = 0.008
Where the measurements come from
Monitoring wells used for Jammalamadugu Mandal.
| Well | Location | Latest month | History |
|---|---|---|---|
| 10404APSEB Substation | JammalamaduguShow coordinates14.8600, 78.5500 |
7.53 m bgl | 1 May 2002 to 1 Sep 2025 |
| 70001Near Veternary hosital | SalevariuppalapaduShow coordinates14.9000, 78.4000 |
9.41 m bgl | 1 Dec 2023 to 1 Sep 2025 |
Data confidence
Confidence is shown for each comparison.
View data quality details
View annual context
Annual values are shown for context. Partial years are marked by the number of months available.
| Year | Mean monthly depth | Months available |
|---|---|---|
| 2025 | 7.89 m bgl | 6 of 12 |
| 2024 | 8.42 m bgl | 12 of 12 |
| 2023 | 7.04 m bgl | 9 of 12 |
| 2022 | 6.13 m bgl | 12 of 12 |
| 2021 | 6.00 m bgl | 10 of 12 |
| 2020 | 5.32 m bgl | 11 of 12 |
| 2019 | 8.97 m bgl | 12 of 12 |
| 2018 | 9.25 m bgl | 12 of 12 |
| 2017 | 11.20 m bgl | 12 of 12 |
| 2016 | 11.31 m bgl | 12 of 12 |
| 2015 | 11.76 m bgl | 12 of 12 |
| 2014 | 12.85 m bgl | 12 of 12 |
About this data
Source: Andhra Pradesh Ground Water Department. Data made available through the National Water Data Portal (NWDP).
Groundwater depth is shown in m bgl. Lower values mean groundwater is closer to the surface.
Latest source date stored: 1 Apr 2026
Page refreshed: 30 Aug 2026
How we calculate
Year on year status compares the same calendar month. It uses wells present in both years where possible.
The historical reference uses the same month across recent years. The long term trend also uses the same month across years.
Missing values are not treated as zero. Invalid readings are excluded.