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Wednesday , 14th April 2021
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Pudukkotai District Profile

  • Pudukkottai district is bounded by Thanjavur district in the East, Thiruchirappali in the North and west, Sivaganga and Ramanathapuram Districts in the South and Bay of Bengal in the south-east.
  • The District lies between 9º51’00” to 10º44'40”N Latitude, 78º25'30”E to 79º16'15”E Longitude and has an areal extent of 4651 sq.km.
  • There are 13 Blocks, 497 Villages and 4558 Habitations in the District.

Physiography and Drainage

  • Pudukottai district has an undulating topography with a gentle slope towards East-North East along the coast.
  • There are no major hill ranges in this district, except some detached patches of residual hills at Thirumayam, Kudimiyanmalai, Sithannavasal, Viralimalai and Narthamalai.
  • There is no perennial river, however, Agniar, Vellar, Koraiyar, Gundar, etc are some of the seasonal rivers that drain the district.
  • The rivers Vellar and pambar flow in the N.W.S.E direction. Apart from these rivers, there are approximately 5451 shallows interconnected tanks which are mainly rainfed.

Rainfall:

The average annual rainfall and the 5 years rainfall collected from IMD, Chennai is as follows:

Acutal Rainfall in mm Normal Rainfall in mm
2013 2014 2015 2016 2017 2018
613.70 794.9 1096.5 470.8 724.4 692.1 887.4

Geology:

Rock Type Geological Formation
Hard Rock 60%,Sedimentary Rock 40% CharnockGneiss, Granite, Charnockite,Quartzite, Pegmatite,Laterite,Sandstone, Alluvium and Marine Deposit

Hydrogeology:

Type of Aquifer Water Table conditions in hard rock Water table to
confined conditions in the sedimentary terrain
Aquifer parameters Hard rock Cretaceous Tertiary
Well yield in lpm 1 - 2 3 - 4 5 - 10
Transmissivity (T)(m 2/day) 5 - 25 9 - 47 89 - 157
Permeability (K)(m/day) 3 - 16 0.5 - 2.8 1.5 - 3.0
Depth of Water level 1.3 m to 12m

Sustainability:

With a view to enhancing the Sustainability of the drinking water sources, recharge structures are being implemented by TWAD Board under various State and Central Government assistance.

The Recharge Structures implemented so far is as under.

Groundwater Potential as on March 2011 (as per CGWB):

Net Groundwater Availability (in MCM) 1431.08
Existing Gross Groundwater draft for all users (in MCM) 314.38
Stage of Groundwater development (in %) 22 %
Categorization of District Safe

Categorization of Firkas:

The status of Categorization of firkas as of March 2011 for the District is shown below.

Categorisation based on Extraction (as on March 2013) No. of Firkas Firkas
Over Exploited (>100%) -  
Critical (90%-100%) 0  
Semi Critical (70%-90%) 5 Alangudi, Arasarkulam, Keeramangalam, Karaiyur, Viralimalai.
Safe (<70%) 36 Aranthangi, Arasamalai, Athani,
Avudaiyarkoil, Embal, Gandarvakottai,
Illuppur, Kallakkottai,
Karambakudi, Keelanilai, Keeranur,
Killukkottai, Kodumbalur, Kottur(P),
Kudumiyanmalai, Kunnandarkoil,
Malaiyur(P), Manamelkudi, Mimisal,
Nagudi, Narthamalai, Neerpalani,
Ponnamaravathy, Ponpette,
Poovathakudi, Pudukkottai, Pudunagar,
Sengeerai, Silattur, Sithanavasal,
Thirumayam, Vallanadu, Varappur(P),
Veerapatty, Vennavalkudi, Virachilai.
Others (Poor& Saline) 3 Kottaipattinam, Perumaruthur,
Sinkavanam.
Total 44  
Water supply status as on 1.4.2018

Rural Habitations

Total No. of Rural Habitations: 4558

Partially covered 1795 (10-39 lpcd )
Fully covered 2763 (40 lpcd and above)

Urban Towns ( Water Supply Status - 1.8.2019)

S.No Name of Towns Population Present water supply level LPCD
Municipalities
1 Aranthangi 40814 90
2 Pudukkottai 117638 90
Town Panchayats
1 Karambakudi 14626 90
2 Eluppur 14127 71
3 Ponnamaravathi 12676 84
4 Keeranur 11667 72
5 Alangudi 12367 75
6 Keeramangalam 9357 111
7 Annavasal 8906 70
8 Arimalam 8948 74

Ground Water Level:

The Ground Water levels from the 24 number of observation wells of TWAD have been analysed for Post-Monsoon and Pre-Monsoon. 5 years average Ground water level in m Below Ground Level for pre and post monsoon is as follows:

Jan
2013

May
2013

Jan
2014

May
2014

Jan
2015

May
2015

Jan
2016

May
2016

Jan
2017

May
2017

Jan
2018
May
2018
Jan
2019
May
2019

5 Years
Pre Monsoon
Average

5Years
Post Monsoon
Average

8.70

25.43

17.80

19.57

13.71

17.60

16.56

18.63

30.74

21.7

33.8 32.2 41.0 43.9

23.11

27.5