Gram Panchayat|LGD 229510Water profile

Nallur

Part of Sholavaram block, Tiruvallur district.

Within limits

Universal taps on a source still within its limit

All 7,295 households report a tap connection and Ponneri remains assessed safe at 37.9 percent of extraction.

100%

Households with a tap connection

7,295 of 7,295 households, across 30 habitations.

Drinking-water sources

Deep Tubewell, Shallow Tubewell

37.9%

Groundwater extraction, containing taluktaluk projection

Ponneri is assessed safe. This describes the taluk, not this Panchayat.

69 mm

Rainfall, last 30 days

29 rain days between 2026-08-07 and 2026-09-06, modelled rather than gauged.

16d ago

Last water-quality sample

Safe on 2026-08-21. 310 samples over 5 years, none of them recorded unsafe.

Place and boundary

The mapped extent comes from the TNGIS Panchayat polygon for this LGD code, so the place on the map is the place the records describe.

LGD Panchayat code: 229510
Block: Sholavaram
District: Tiruvallur
Mapped area: 938.952 ha
Centroid: 13.2118, 80.1605

Loading map

Plotted from the centroid of the TNGIS polygon. The marker is the Panchayat, not a settlement; the polygon is not drawn on this page.

Habitations

JJM records service for each habitation separately. A Panchayat total can hide a habitation that is behind.

Habitation	Population	Households	Tap connections
Anna Nagar	216	54	54
Annai Indiragandhi Nagar	1,076	215	215
ARINGNAR ANNA NAGAR	708	142	142
Attanthangal	1,912	378	378
Bala Ganesa Nagar	2,016	404	404
BALAJI NAGAR	208	52	52
Balamurugan Nagar	1,928	382	382
Dr.varaprasad Nagar	850	212	212
E.g.nagar	284	71	71
Gandhi Nagar East	1,076	269	269
Gandhi Nagar West	7,200	1,440	1,440
Indira Nagar	1,239	309	309
Kalaignar Karunanidhi Nagar	1,644	411	411
Kannur Amman Nagar	288	64	64
M.g.r. Nagar	439	109	109
Marudhu Pandiar Nagar	1,096	274	274
METTU ATTANTHANGAL	316	79	79
NAGATHAMMAN NAGAR	366	91	91
Nallur	1,059	212	212
NALLUR AMBEDKAR NAGAR	1,308	262	262
Nallur Colony	232	58	58
Pannervakkam	28	7	7
PERUMAL NAGAR	1,108	222	222
Rajiv Gandhi Nagar	220	55	55
Sivanthi Adhithan Nagar	2,396	600	600
Solaiamman Nagar	2,316	463	463
Sri Krishna Nagar	460	115	115
V.p.singh Nagar	389	97	97
VEERAPANDY NAGAR	420	105	105
Vijayanallur	572	143	143

Where the water comes from

The schemes JJM records as serving this Panchayat, grouped by the kind of source they draw on.

Source	Category	Count
Deep Tubewell	Ground Water	68
Shallow Tubewell	Ground Water	1

Groundwater, projected from the taluk

IN-GRES assesses revenue taluks. This Panchayat inherits its containing taluk's category unchanged, as containing-area context rather than a measurement of the place.

safe

taluk categorytaluk projection

Ponneri taluk, by centroid in taluk.

37.9%

stage of extraction, taluktaluk projection

Groundwater drawn each year as a share of what recharges, for the whole taluk. Above 100 is more drawn than recharges.

Ponneri

containing revenue taluktaluk projection

Sub-district on the revenue hierarchy, which the Panchayat hierarchy does not nest inside.

The assessment unit is a revenue taluk, not the Gram Panchayat: each Panchayat inherits its containing taluk's category and stage of extraction unchanged, as containing-area context rather than a measurement of the place. Containment is decided by the TNGIS polygon centroid (vertex fallback for concave polygons); a Panchayat that falls in no taluk or in a taluk without an assessment is deferred, never guessed. 6 TNRD blocks span more than one revenue taluk, so a block-to-taluk name match would have been wrong.

Tanks and water bodies

Mapped by TNGIS and assigned to this Panchayat by the register itself, not by a name match.

5 water bodies cover 5.2 ha here, the largest of them 2.9 ha. The register names 3 of them; the names and polygons are not shown on this page.

Waterspread is the mapped extent, not storage. It says nothing about whether these hold water through the year, whether they are encroached, or when any one of them was last surveyed.

Registered by	Water bodies
NRSC	3
AED	2

Water-quality testing

310 samples between 2022-10-08 and 2026-08-21. 250 were taken at a source and 60 at households.

None was recorded unsafe. A clean run this long describes the reporting as much as the water, so read it as an absence of recorded failures rather than as evidence of safety.

Year	Samples
2022	40
2023	31
2024	49
2025	96
2026	94

What is missing

14 of 40 capabilities are supported by acquired evidence. The rest are named here rather than left blank.

Named gap

No source carries it (12)

Nothing acquired for this district answers these, so they are named rather than estimated.

drinking water reliability
historical water access
groundwater level observation
groundwater level trend
aquifer context
catchment context
water body condition
waterway network
flood hazard
observed flood events
natural drainage
wastewater service

Named gap

Not determined whether it applies here (14)

These may not be meaningful for an inland rural Panchayat. Until that is decided, they are neither claimed nor dismissed.

surface water change
engineered stormwater drainage
wastewater treatment assets
pollution pressure inventory
measured water pollution
coastal and estuarine
historical agricultural baseline
current crop and irrigation state
soil water context
agricultural water system relation
crop water demand
agricultural water stress observation
agricultural water pollution pressure
composite priority score

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