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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 mmNormal Rainfall in mm
20132014201520162017
830.80857.701135.50577.51006.5997.6
 Geology:
Rock TypeGeological 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 lpm45 - 545
Transmissivity (T)m2/day 10.2 - 542.8
Permeability (K)(m/day))0.1 - 50
Depth of Water level20m to 36m
 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. Since 1991 average Ground water level in m Below Ground Level for pre and post monsoon is as follows:
 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.
Recharge Structures
Check Dam Percolation Pond Recharge Pit Recharge Trench Others Ooranies Defunct Bore well Recharge Recharge Shaft Roof top RWH Hydro Fracturing Total
769 5 3 777
 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 DistrictOver Exploited
 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 2011) 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 1.4.2017
 Rural Habitations
Total No. of Rural Habitations: 6123
Partially covered586 (10-39 lpcd )
Fully covered5537 (40 lpcd and above)
 
 Urban Towns (Water supply status - Sep 2016)
S.NOName of Towns Population Present water supply level LPCD
Corporation
1Salem 829267 135
Municipalities
1Mettur 52813 185
2Edaipaddi 54823 90
3Athur 61793 90
4Narasingapuram 23084 90
Town Panchayats
1Arasiramani 14834 88
2Attayampatti 13852 72
3Ayothiapattinam 11517 97
4Belur 8736 70
5Edaganasalai 33245 70
6Ethapur 10968 70
7Gangavalli 12015 70
8Ilampillai 11797 98
9Jalakandapuram 16184 70
10Kadayampatti 11390 70
11Kannankurichi 19765 93
12Karuppur 13967 70
13Keeripatti 10208 70
14Kolathur 12748 76
15Konganapuram 9286 105
16Mallur 10331 70
17Mecheri 25676 70
18Nangavalli 10809 81
19Omalur 16279 100
20P.N.Patti 25133 178
21Panaimarathupatti 9368 70
22Pethanaickenpalayam 17678 70
23Poolampatti 9477 70
24Sankari 29467 70
25Sentharapatti 14308 70
26Thammampatti 21503 70
27Tharamangalam 30222 70
28Thedavur 8230 70
29Thevur 8548 70
30Vanavasi 7130 89
31Vazhapadi 17559 70
32Veeraganur 11624 70
33Veerakkalpudur 16665 137
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