Gram Panchayat|LGD 226051Water profile

Perakkarai Nadu

Part of Kollihills block, Namakkal district, in the Mettur Reservoir to Noyyal confluence sub-basin.

Within limits

Universal taps on a source still within its limit

All 654 households report a tap connection and Kolli Hills remains assessed safe at 0.5 percent of extraction.

100%

Households with a tap connection

654 of 654 households, across 22 habitations.

Drinking-water sources

Deep Tubewell, Open Well

0.5%

Groundwater extraction, containing taluktaluk projection

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

80 mm

Rainfall, last 30 days

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

198d ago

Last water-quality sample

Safe on 2026-02-20. 140 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: 226051
Block: Kollihills
District: Namakkal
Mapped area: 908.759 ha
Centroid: 11.3977, 78.3149

Loading map

Plotted from the centroid of the TNGIS polygon. The marker is the Panchayat, not a settlement; the polygon is withheld pending the licence reply.

Habitations

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

Habitation	Population	Households	Tap connections
Aruvankadu	79	26	26
Bolekadu	111	50	50
Chettikadu	170	58	58
Kaiyankodai	89	26	26
Kulikadu	25	10	10
Naduvalavu	20	7	7
Oomathangadu	98	37	37
Oorpuram	109	39	39
Othakadai	21	9	9
Periyakadu	58	16	16
Pudhukkadu	33	19	19
Puthadivalavu	42	16	16
Saiyankadu	6	2	2
Solankadu	26	10	10
Sottapalathi	82	27	27
Thathakiraipatty	15	5	5
Thottigadu	70	27	27
Ulparappu	113	43	43
Vadakadu	376	126	126
Valakadu	168	58	58
Veeraganoorpatty Oorpuram	12	3	3
Vilarikadu	105	40	40

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
Open Well	Ground Water	24
Deep Tubewell	Ground Water	14

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

Kolli Hills taluk, by centroid in taluk.

0.5%

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.

Kolli Hills

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. 4 TNRD blocks span more than one revenue taluk, so a block-to-taluk name match would have been wrong.

Water-quality testing

140 samples between 2022-12-27 and 2026-02-20. 116 were taken at a source and 24 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	19
2023	20
2024	42
2025	49
2026	10

What is missing

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

Named gap

No source carries it (13)

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 inventory
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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