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Home TamilNadu Map Profile Print SALEM DISTRICT PROFILE • Salem district is bounded by Villupuram district in the East, district in the West, and district in the North and 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 falls in the district. • The Shevroy hills, 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, is as follows:

Acutal Rainfall in mm Normal Rainfall in mm 2011 2012 2013 2014 2015 1078.60 831.50 830.80 857.70 1135.50 997.90

Geology:

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

Hydrogeology:

Discontinuous unconfined to semi confined Type of Aquifer 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

Ground Water Level:: The Ground Water levels from the 41 number of observation wells of TWAD have been analysed for Post­Monsoon and Pre­ Monsoon. Since 1991 average Ground water level in m Below Ground Level for pre and post monsoon is as follows:

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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 Roof Check Percolation Recharge Recharge Defunct Bore Recharge Hydro Others Ooranies top Total Dam Pond Pit Trench well Recharge Shaft Fracturing RWH 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 District Over 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%) 29 , , Ernapuram, , , Karippatti, Kattukkottai, , Malliyakarai, , , , Palamalai, Panamarathuppatti, Pethanaickanpalayam, , Salem Town, Sankari East, Sankari West, Semmandappatti, Suramangalam, , ,

2/4 3/6/2017 Thirumalaigiri, Valasaiyur, Vazhappadi, Veerapandi, Vembadithalam, Yethapur. Critical (90%­100%) ­ Karupur, Kolathur ,Patchamalai, Semi Critical (70%­90%) 6 Pottaneri, , Veeraganoor. Arunoothumalai, Belur, Kalrayanmalai, Safe (<70%) 7 Mettur, Puthur(S), Vellakkadai, Yercaud. Others (Poor& Saline) ­ Total 42

Water supply status as on 1.4.2016 Rural Habitations Total No. of Rural Habitations: 6123

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

Urban Towns (Water supply status ­ Sep 2016)

S.NO Name of Towns Population Present water supply level LPCD Corporation 1 Salem 829267 135 1 52813 185 2 Edaipaddi 54823 90 3 Athur 61793 90 4 Narasingapuram 23084 90 Town Panchayats 1 14834 88 2 13852 72 3 11517 97 4 Belur 8736 70 5 33245 70 6 10968 70 7 Gangavalli 12015 70 8 Ilampillai 11797 98 9 16184 70 10 Kadayampatti 11390 70 11 19765 93 12 Karuppur 13967 70

3/4 3/6/2017 13 10208 70 14 Kolathur 12748 76 15 Konganapuram 9286 99 16 Mallur 10331 70 17 Mecheri 25676 70 18 Nangavalli 10809 83 19 Omalur 16279 117 20 P.N.Patti 25133 204 21 9368 70 22 17678 70 23 Poolampatti 9477 70 24 Sankari 29467 74 25 Sentharapatti 14308 70 26 21503 70 27 Tharamangalam 30222 70 28 8230 70 29 Thevur 8548 70 30 7130 112 31 17559 70 32 11624 70 33 16665 149

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