TAMILNADU WATER SUPPLY AND DRAINAGE BOARD


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DISTRICT PROFILE

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Nilgiri District Profile

NILGIRIS DISTRICT PROFILE

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SALIENT DETAILS
Profile	Location	Western part of the State
	Lat.	N 11° 12' to 11° 43'
	Long.	E 76° 14' to 77° 01'
	Area	2549 Sq.Kms
	No.of Taluks	6
	No. of Blocks	4
	No. of Villages	35
	No. of Habitations	1158

Physiographic	Type of Terrain	Mountainous with undulating topography
	Elevation in m amsl	Low-lying plain around hills:800 - 1000 Maximum elevation in hill: 2559 m
	Hills	Doddepatta, Devapetta, Mukkurithi, Nilgiri, Bear
	River	Moyar Sigur, Pykara, Kedarhalla, Parani, Coonur, Kundah, Kotagirhalla and Katteri
Average annual Rainfall		1691 mm
Geology		Completely covered by the hard rock areas. Charnockite, Biotite, Gneiss, Quartzite, Homblende Granulities, Pyroxonite, Schist, Dolerites, Pegmatite, Magnetite and Pyroxene Granulites

Hydrogeology

Type of aquifer

Unconfined to semi confined acquifers

Aquifer parameters

Well yield (lpm):

Transmissivity (T)(m 2/day)

Permeability (K)(m/day)

Depth of Water level

5 m to 10m

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

( Based on Ground Water Estimation Committee report)

Utilisable ground water recharge

116.4 MCM

Net Ground Water draft

4.60 MCM

Balance

111.8 MCM

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

OVER EXPLOITED Greater than 100%

Nil

CRITICAL Between 90 and 100%

Nil

SEMI CRITICAL 70 and 90%

Nil

SAFE Less than 70%

Coonoor

Gudalur

Kotagiri

Udhagamandalam

SALINE

Nil

RECHARGE STRUCTURES

Check Dams

Water supply status as on 1.4.2011

Rural Habitations

Total No. of Rural Habitations: 1219

Partially covered	20 (10-39 lpcd )
Fully covered	1199 (40 lpcd and above)

Urban Towns (Water Supply status - December 2011)

S.NO	Name of Towns	Population	Present water supply level LPCD
Municipalities
1	Udagamandalam	93987	90
2	Coonoor	50196	85
3	Nalliyalam	41837	55
4	Gudalur	43096	90
Town Panchayats
1	Naduvattam	11370	70
2	O'Valley	24793	70
3	Jagathala	14677	59
4	Kothagiri	29192	70
5	Devarshola	23164	60
6	Bikketti	6774	70
7	Adikaratti	16003	70
8	Solur	11152	70
9	Hulical	17054	50
10	Kethi	24534	70
11	Keelkuntha	10163	58