AP Water Intelligence
Andhra Pradesh Groundwater Assessment

Mandal Insights

APWRIMS-format readings fused with NASA/NDMC GRACE-DA satellite-model signals.

Prototype. Prototype results do not replace official field measurements or APWRIMS outputs.
OverviewMandal InsightsEdlapadu

Edlapadu Mandal

Palnadu District · 141 observation months
NormalHigh ConfidenceCGWB 2024Safe Back to map
Historical Median Depth
19.02 mbgl
Available history / latest 2026-09
Observation Months
141
APWRIMS (AP-GWD)
NASA GW Percentile
5.8
Very Dry
Root-Zone Moisture
0.4
Very Dry
Surface Moisture
0.4
Very Dry
Overall Agreement
Stable / recovering
Data Completeness
V2
High
Rainfall Context
220.8 mm
CHIRPS · Sep 2026
Location & Context
Basemap © OpenFreeMap · OSM · official boundary (AWARE, rebuilt)
Fusion Explanation
Measured · APWRIMS
19.02 mbgl
141 observation months
Rainfall / ET context
220.8 mm
climate balance: Surplus
Modelled nowcast
9.06 m
model P10–P90 7.5–11.02 m · Normal
The measured trend is stable or recovering. The surplus climate balance is supporting context only.
This seasongauge rain, soil moisture and storage
APWRIMS · research use
Gauge rain, 1 Jun to 17 Oct 2026−52% against normal

281 mm against a normal of 587 mm · Deficient · 23 rainy days · 4 gauges

Last month: 178 mm against 153 mm.

Measured: AP DES mandal rain gauges via APWRIMS.

Soil moisture, 18 Oct 202627% at 30 cm · usual 58%
  • 5 cm47%
  • 30 cm27%
  • 100 cm29%
  • 150 cm31%

3rd driest of 13 years for this date (range 8 to 100%). A week earlier: 44%.

Modelled: NRSC VIC land-surface model via APWRIMS; plant-available water as a share of what the soil holds.

Signals pointing to stress3 of 3 usable
  • Groundwater shortfall flaggedyes
  • Gauge rain 20% or more below normalyes
  • Soil among the driest quarter of years for the dateyes

A count of stated tests, not a score. The soil model is driven by rainfall, so those two are not independent.

Crop vegetation, 17 Sep to 14 Oct 202629 · severely below normal

Weekly since 25 Jun; dashed lines at 40 and 60, the drought manual’s class limits. Cropland is about 63% of this mandal's land.

Satellite index: NOAA STAR VHP, 4 km weekly, weighted to cropland (ESA WorldCover 2021). Plant vigour against the same weeks in other years, not yield.

Groundwater assessment 2025-2026Safe · 25% of the extractable groundwater drawn
  • Irrigation1.6
  • Domestic1.8

3.4 of 15.5 million m³ a year (bars: share of the extractable resource, figures in million m³). 2024-2025: Safe, 30%.

Official: CGWB and the AP State Ground Water Department, GEC-2015 method, via INGRES; unit Edlapadu.

Reservoirs in Palnadu, 19 Oct 2026
  • Nagarjuna Sagar60.2%98.6% a year ago
  • Pulichinthala Project61.9%96.4% a year ago
  • Buggavagu49.1%89% a year ago

Storage at the dam, measured. Whether its canals reach this mandal needs the command-area map, which is not public.

Compare across the state
The State network’s latest reading
AWARE groundwater feed · one reading, not a monthly mean
Latest reading9.86 mbelow ground, 1 Sep 2026 · State band 6–20 m
Since May0.51 m deeperpre-monsoon 9.35 m
Against a year ago4.10 m shallower13.96 m then
Stations1one well carries this mandal

Our monthly series ends Aug 2026 at 9.86 m; the State reading is the same since then. It is shown beside our series, not merged into it, and the model does not use it.

Assembly constituency
Chilakaluripet
Parliamentary constituency
Narasaraopet
Revenue division
Narasaraopet
LGD mandal code
05071
Official area
185.6 km²
Outline drawn
official boundary (AWARE, rebuilt)

AP AWARE groundwater feed (groundwater_aggregatedreadings_api) via the AI Living Labs data lake. Readings 1 Sep–9 Sep 2026.

Every constituency
Drought manual checkKharif 2026 · rain to 11 Oct 2026
steps 1–2 · not a declaration

Edlapadu

Palnadu district · official boundary (AWARE, rebuilt)
Moderate
Step 1 · Trigger 1Set
Rainfall vs normal−50%281 mm against 563 mm · Deficient. Table 3.1 (IMD): normal +19 to −19%, deficient −20 to −59%, large deficient −60 to −99%, no rain −100%. Measured: AP DES gauges via APWRIMS.
Longest dry spell6 wk3.2.1 B: consecutive weeks after the monsoon's due onset with under 50% of the week's normal; usually 4 weeks, 3 on light soils.
1 Jundashed line: half of normal11 Oct
SPI route (satellite)−0.35Near normal; would set Trigger 1 on its own route. 3.2.1 C: SPI below −1 is a deficit; below −1.5 sets Trigger 1 without a dry spell. CHIRPS v3 since 1981.
Trigger 1 set by a dry spell. Table 3.11: a dry spell sets Trigger 1. Without one, only large-deficient rainfall (or SPI below −1.5) does.
Step 2 · Trigger 2 · 3 of 3 indicatorsModerate
Remote sensing · VCI Severe35Table 3.4: VCI 60–100 normal, 40–60 moderate, 0–40 severe. NOAA STAR VHP, 4 km, last four weeks. Satellite index over all vegetation; coarser than the manual prefers.
Soil moisture · PASM Severe47%Usual for the date 58%. This date read Severe in 3 of 12 earlier years. Table 3.6 (2020): PASM 76–100 no drought, 51–75 moderate, 0–50 severe. The State may recalibrate. Modelled: NRSC VIC at 30 cm via APWRIMS, four-week mean.
Hydrology · GWDI Normal+0.17Normal: 10.4 m below ground against a 15.1 m mean for the month, 12 years. Table 3.9: GWDI above −0.15 normal, to −0.30 mild, to −0.45 moderate, to −0.60 severe, below extreme. Measured: APWRIMS wells.
Agriculture · area sown n/a—Not published per mandal: the Agriculture department holds it. 3.2.3.1: sown area under 85% of normal is drought; 75% or less is severe.
3.3.1 Step 2: severe if two of three are severe and the third at least moderate; moderate if two are moderate or worse.
Step 3 · the State
Field verification due before harvest. 3.2.6: field checks in 10% of villages, about 5 sites per major crop; crop loss of 33% qualifies, over 50% for severe.
Every mandal on the Drought Watch
Aquifer Water Balancerainfall minus actual ET
TerraClimate 2025
Annual rainfall1,320.27 mm
Modelled actual ET856.27 mm
Annual rainfall minus actual ET+464 mm
Surplus

Rainfall minus modelled actual ET is climatic context, not crop water requirement, groundwater recharge, pumping or safe yield.

TerraClimate 2025 annual actual ET vs rainfall (~4 km, modeled). Not groundwater depth or a field irrigation instruction.
Measured History · APWRIMS-format
2014-06 – 2026-09
10.45m below ground
2026-09monsoon
020402014201620182020202220242026
Measured (APWRIMS) Modelled nowcast · p10–p90 Monsoon (Jun–Sep)Depth increases downward — a higher fill is a shallower water table.
Show the numbers
Depth to water by month, metres below ground (APWRIMS)
MonthDepth (m)
Sep 202610.45
Aug 20269.86
Jul 20269.55
Jun 20268.90
May 20269.35
Apr 20268.56
Mar 20267.51
Feb 20267.12
Jan 20267.10
Dec 20256.95
Nov 20256.95
Oct 202510.48
Sep 202510.55
Aug 202515.42
Jul 202515.62
Jun 202516.70
May 202517.20
Apr 202517.41
Mar 202515.26
Feb 202514.81
Jan 202514.21
Dec 202413.50
Nov 202414.57
Oct 202412.66
Sep 202414.05
Aug 202415.62
Jul 202426.08
Jun 202421.02
May 202426.26
Apr 202427.12
Mar 202425.19
Feb 202421.02
Jan 202412.76
Dec 20239.99
Nov 20236.84
Oct 20235.17
Sep 20235.60
Aug 20237.49
Jul 20238.16
Jun 202310.36
May 202323.04
Apr 20233.11
Mar 202322.36
Feb 202322.07
Jan 20233.60
Dec 20222.84
Nov 20222.76
Oct 20222.79
Sep 20222.85
Aug 20222.35
Jul 20222.59
Jun 20225.84
May 20225.03
Apr 20224.91
Mar 20224.15
Feb 20224.21
Jan 20223.12
Aug 202123.45
Jul 202119.96
May 202117.14
Feb 202115.14
Jan 202116.02
Dec 202016.25
Nov 202016.13
Oct 202024.98
Sep 202018.75
Aug 202024.98
Jul 202024.99
Jun 202025.32
May 202030.26
Apr 202025.32
Mar 202025.93
Feb 202025.84
Jan 202023.11
Dec 201922.50
Nov 201923.66
Oct 201923.66
Sep 201925.80
Aug 201926.23
Jul 201933.68
Jun 201934.46
May 201935.03
Apr 201936.62
Mar 201933.90
Feb 201933.48
Jan 201932.18
Dec 201830.72
Nov 201832.03
Oct 201830.88
Sep 201826.66
Aug 201825.14
Jul 201828.90
Jun 201832.30
May 201833.17
Apr 201832.87
Mar 201832.25
Feb 201832.43
Jan 201830.17
Dec 201726.93
Nov 201723.23
Oct 201720.90
Sep 201719.91
Aug 201721.11
Jul 201725.13
Jun 201723.98
May 201728.05
Apr 201728.93
Mar 201727.62
Feb 201725.25
Jan 201723.16
Dec 201622.45
Nov 201621.55
Oct 201616.31
Sep 201615.98
Aug 201624.19
Jul 201624.01
Jun 201623.64
May 201627.09
Apr 201628.12
Mar 201627.83
Feb 201625.88
Jan 201624.09
Dec 201521.16
Nov 20157.33
Oct 201516.88
Sep 201517.00
Aug 201518.11
Jul 201519.54
Jun 201518.86
May 201519.87
Apr 201518.70
Mar 201516.94
Feb 201514.68
Jan 201513.37
Dec 201413.16
Nov 201412.69
Oct 201414.26
Sep 201413.53
Aug 201418.88
Jul 201419.02
Jun 201422.16
APWRIMS-format monthly observations (m below ground). The dashed extension is the modelled nowcast — 9.06 m, P10–P90 7.5–11.02 m — not a measurement.
Monsoon Cycle · Recharge by Year
pre-monsoon May vs post-monsoon November
Typical monsoon recovery+10.82 mmedian across 10 paired years
Weakest recovery+1.14 min 2018
  1. 2015▲ 12.54 m
  2. 2016▲ 5.54 m
  3. 2017▲ 4.82 m
  4. 2018▲ 1.14 m
  5. 2019▲ 11.38 m
  6. 2020▲ 14.13 m
  7. 2022▲ 2.27 m
  8. 2023▲ 16.20 m
  9. 2024▲ 11.69 m
  10. 2025▲ 10.25 m
Pre-monsoon (May) — the annual low Post-monsoon (Nov) — after rechargeRecovery is the metres the water table rose over the monsoon. A short bar is a monsoon that did not refill the aquifer.
Derived from the measured APWRIMS-format history, not modelled. Years without both a May and a November reading are omitted rather than interpolated.
Data Quality & Freshness
Observation records141
Latest observation period2026-09
Satellite sample—
Measured labelAPWRIMS (AP-GWD)
Boundarypublic_prototype
141 observation months; modelled.
Data Sources
Measured Input · APWRIMS
APWRIMS mandal reading (2014-2026)
NASA Satellite-Model (GRACE-DA)
Real percentiles 0–100 · —
CHIRPS Rainfall Context
Monthly areal average · not direct measured recharge
Boundary Source
The State's outline (AWARE), rebuilt from its points · 185.6 km²
Recommended Action
Collect an additional field observation before interpretation
Review the APWRIMS-format observation history
Reassess once the authorised APWRIMS export arrives
Do not treat as official until the APWRIMS export is authorised
Action Output
AWARE / APWRIMS Action Output (Preview)
{
  "district_name": "PALNADU",
  "mandal_name": "EDLAPADU",
  "status": "Stable monitoring indicator",
  "confidence_label": "High",
  "recommended_action": "Continue routine monitoring.",
  "source_caveat": "Unreleased preview; field verification and official schema required."
}
Prototype InsightAPWRIMS reading + real NASA satellite-model percentileNot official until the APWRIMS export is authorised · official boundary (AWARE, rebuilt)Go to watchlist