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Wednesday , 14th April 2021
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Salem District Profile

  • Salem district is bounded by Villupuram district in the East, Erode district in the West, and Dharmapuri district in the North and Namakkal district in the South.
  • The District lies between 11º 21' 30’’ N to 11º 59' 00”N Latitude,77º 38' 00” E to 78º 50' 00” E Longitude and has an areal extent of 5245 sq.km.
  • There are 20 Blocks, 385 Villages and 6123 Habitations in the District.

Physiography and Drainage

  • Salem district is characterized by undulating terrain and major part of the Eastern Ghats falls in the district.
  • The Shevroy hills, Yercaud part of the Eastern Ghats is located at an altitude of 1900m the highest peak in this district.
  • The terrain between plains and the hills are generally 150 to 400m above MSL with a low lying plain in the western side of the district.
  • River Cauvery is the major river which traverses at the western part of the district.
  • The major tributaries are Sarabanga and Thirumanimuttar. The Vasishta Nadhi and Vellar also drain in the Eastern part of the district.

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
830.80 857.70 1135.50 577.5 1006.5 712.9 997.9

Geology:

Rock Type Geological Formation
Hard Rock Charnockite, Gneiss, Granite,Pegmatite, Pyroxenite and Alluvium

Hydrogeology:

Type of Aquifer Discontinuous unconfined to semi confined aquifers in fissured formations
Well yield in lpm 45 - 545
Transmissivity (T)m2/day 10.2 - 542.8
Permeability (K)(m/day)) 0.1 - 50
Depth of Water level 20m to 36m

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) 523.56
Existing Gross Groundwater draft for all users (in MCM) 856.32
Stage of Groundwater development (in %) 164 %
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%) 27 Attur, Edappadi, Ernapuram, Gangavalli,
Kadayampatti, Karippatti, Kattukkottai,
Konganapuram, Malliyakarai, Mecheri,
Nangavalli, Omalur, Palamalai,
Panamarathuppatti,
Pethanaickanpalayam,
Salem Town, Sankari East, Sankari
West, Semmandappatti,
Thalaivasal, Tharamangalam,
Thirumalaigiri, Valasaiyur, Vazhappadi,
Veerapandi, Vembadithalam, Yethapur.
Critical (90%-100%) 2 Poolampatti,Suramangalam
Semi Critical (70%-90%) 7 Karupur, Kolathur ,Belur,
Pottaneri, Thevur, Veeraganoor,Mettur.
Safe (<70%) 6 Arunoothumalai, Kalrayanmalai,
Puthur(S), Vellakkadai, Yercaud, Patchamalai
Others (Poor& Saline) -  
Total 42  
Water supply status as on 1.4.2018

Rural Habitations

Total No. of Rural Habitations: 6123

Partially covered 587(10-39 lpcd )
Fully covered 5536(40 lpcd and above)

Urban Towns ( Water Supply Status - 1.4.2018)

S.No Name of Towns Population Present water supply level LPCD
Corporation
1 Salem 829267 135
Municipalities
1 Mettur 52813 185
2 Edaipaddi 54823 90
3 Athur 61793 90
4 Narasingapuram 23084 90
Town Panchayats
1 Arasiramani 14834 88
2 Attayampatti 13852 70
3 Ayothiapattinam 11517 70
4 Belur 8736 70
5 Edaganasalai 33245 79
6 Ethapur 10968 70
7 Gangavalli 12015 70
8 Ilampillai 11797 70
9 Jalakandapuram 16184 70
10 Kadayampatti 11390 70
11 Kannankurichi 19765 96
12 Karuppur 13967 87
13 Keeripatti 10208 70
14 Kolathur 12748 76
15 Konganapuram 9286 90
16 Mallur 10331 72
17 Mecheri 25676 70
18 Nangavalli 10809 87
19 Omalur 16279 108
20 P.N.Patti 25133 210
21 Panaimarathupatti 9368 70
22 Pethanaickenpalayam 17678 70
23 Poolampatti 9477 70
24 Sankari 29467 75
25 Sentharapatti 14308 70
26 Thammampatti 21503 70
27 Tharamangalam 30222 70
28 Thedavur 8230 70
29 Thevur 8548 70
30 Vanavasi 7130 127
31 Vazhapadi 17559 70
32 Veeraganur 11624 70
33 Veerakkalpudur 16665 164

Ground Water Level:

The Ground Water levels from the 41 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

10.60

18.11

9.50

17.99

11.05

11.47

7.09

11.27

14.52

25.7 9.9 13.0 24.4 15.1

12.4

14.6