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Wednesday , 14th April 2021
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Perambalur District Profile

  • Perambalur district is bounded by Ariyalur district in the East, Cuddalore and Villupuram districts in the northeast and north while in the northwest it is Salem District in the North West and Tiruchirapalli district in the west and south-west directions.
  • Perambalur district is bounded by Ariyalur district in the East, Cuddalore and Villupuram districts in the northeast and north while in the northwest it is Salem District in the North West and Tiruchirapalli district in the west and south-west directions.
  • There are 4 Blocks, 121 Villages and 630 Habitations in the District.

Physiography and Drainage

  • Perambalur district forms parts of Vellar and Cauvery basins.
  • Vellar River flows through the northern boundary of the district while Chinnar River draining in the northern part of the district confluences with R.Vellar.
  • The southern part of the district falls in the R.Cauvery basin with many small streams draining the district area.

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
725.6 811.9 1096.5 566.4 1005.5 533.2 861.86

Geology:

Rock Type Geological Formation
Hard Rock 90%,Sedimentary Rock 10% Gneiss, Charnockite, Limestone,Sandstone, Shale and Alluvium

Hydrogeology:

Type of Aquifer Water Table to Semi confined conditions.
Aquifer parameters Alluvium Sedimentary Hard rock
Well yield in lpm 300 - 950 300 - 550 80 - 210
Transmissivity (T) m 2/day 225 - 1500 90 - 190 35 - 130
Permeability (K) m/day 20 - 50 15 - 30 5 - 20
Depth of Water level 3 m to 15m

Sustainability:

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

The Recharge Structures implemented so far is as under.

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

Net Groundwater Availability (in MCM) 207.62
Existing Gross Groundwater draft for all users (in MCM) 280.76
Stage of Groundwater development (in %) 135 %
Categorization of District Over Exploited

Categorization of Firkas:

The status of Categorization of Firkas as of March 2013 for the District is shown below.

Categorisation based on Extraction (as on March 2013)) No. of Firkas Firkas
Over Exploited (>100%) 6 Chettikulam, Kurumbalur, Pasumbalur,
Perambalur, Valikandapuram, Vengalam.
Critical (90%-100%) -  
Semi Critical (70%-90%) 3 Keelapuliyur, Kolakanatham, koothur
Safe (<70%) 2 Vadakkalur, Varagur.
Others (Poor& Saline) -  
Total 11  
Water supply status as on 1.4.2018

Rural Habitations

Total No. of Rural Habitations: 630

Partially covered 0 (10-39 lpcd )
Fully covered 630 (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 Perambalur 49648 87

 

Town Panchayats
1 Labbaikudikadu 11891 72
2 Kurumbalur 12420 70
3 Poolambadi 10737 70
4 Arumbavur 12467 70

Ground Water Level:

The Ground Water levels from the 16 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

9.80

13.54

9.30

9.50

8.93

12.12

2.88

6.31

13.68

35.5

8.0 17.1 16.4 19.8

9.8

13.4