TAMILNADU WATER SUPPLY AND DRAINAGE BOARD


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DISTRICT PROFILE

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Thiruvellore District Profile

THIRUVELLORE DISTRICT PROFILE

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SALIENT DETAILS
Profile	Location	COASTAL DISTRICT
	Lat.	N 12° 10' to 13° 15'
	Long.	E 79° 15' to 80° 20'
	Area	3424 9q. Kms
	No.of Taluks	8
	No. of Blocks	14
	No. of Villages	539
	No. of Habitations	4046

Physiographic	Type of Terrain	Plain Topography with coastal sands
	River	Arani, Kosathalaiyar, Koovam
Average Rainfall		1082 mm
Climate		Subtropical
River Basin		Araniar, Kosasthalaiyar
Geology		Hard Rock, Gondwana & Sedimentory

Hydrogeology

Type of aquifer

Water table conditions in Hard Rock Areas confined & semi-confined in sedimentary area

Depth of Water level

3m to20m

GROUND WATER POTENTIAL AS ON JANUARY 2003 (AS PER CGWB & PWD)

( Based on Ground Water Estimation Committee report)

Utilisable ground water recharge

1114.5 MCM

Net Ground Water draft

1056.4 MCM

Balance

(57.90 MCM

BLOCKS WITH STAGE OF GROUNDWATER DEVELOPMENT ( As on March 2004 )

OVER EXPLOITED Greater than 100%

Ellapuram

Minjur

Pallipattu

R.K.Pet

Thiruvalankadu

Tiruttani

CRITICAL Between 90 and 100%

Kadambathur

Poonamalee

SEMI CRITICAL 70 and 90%

Sholavaram

Tiruvallur

SAFE Less than 70%

Villivakkam

Gummudipoondi

Poondi

Pulal

SALINE

Nil

RECHARGE STRUCTURES

Check Dams:

282

Ooranies:

Defunct Borewell Recharge:

Water supply status as on 1.4.2011

Rural Habitations

Total No. of Rural Habitations: 4066

Partially covered	45 (10-39 lpcd )
Fully covered	4021 (40 lpcd and above)

Urban Towns (Water Supply status - December 2011)

S.NO	Name of Towns	Population	Present water supply level LPCD
Municipalities
1	Thiruvallur	45732	95
2	Avadi	229403	9
3	Poonthamallee	42604	60
4	Thiruthani	38314	69
5	Thiruverkadu	32221	70
Town Panchayats
1	Naravarikuppam	18331	70
2	Thirunindravur	29332	50
3	Thirumazhisai	16291	72
4	Gummudipoondi	16196	69
5	Pallipattu	8654	65
6	Arani	12614	49
7	Ponneri	24309	56
8	Pothatturpettai	18715	58
9	Uthukottai	10626	72
10	Minjur	23742	69