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COIMBATORE DISTRICT PROFILE | |
• Coimbatore district is bounded by Kerala State in the West and South, Tiruppur District in the East, and parts of Nilgiris and Erode Districts in the North.
• The District lies between 10º 13'00” N to 11º 23' 30”N Latitude, 76º 39'00”E to 77º 30'00”E Longitude and has an areal extent of 7649 sq.km. |
• There are 12 Blocks, 228 Village panchayats and 2238 Habitations in the District' |
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Physiography and Drainage: |
• The North western part and the Southern part of the Coimbatore is occupied by hill ranges of Western Ghats, namely Nilgiris hills in the North-West and Anamalai hills in the South. |
• The most part of the district forms parts of Cauvery river basin where as the South western part of the district comes under Ponnani River basin. |
• The major river courses which come under Cauvery basin are Bhavani, Noyyal and Amaravathi. |
• The South western part of the district is drained by tributaries of Ponnani, namely Palar, Aliyar and Uppar originating from Anamalai hills. |
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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 |
901.0 | 1221.7 | 992.9 | 505.5 | 873.4 | 689.04 |
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Geology:: |
Rock Type | Geological Formation |
Hard Rock | Charnockite, Sillimanite Gneiss, Granite, Pyroxenite Calc.Granulites Quartzite and Alluvium |
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Hydrogeology: |
Type of aquifer | Semi confined to unconfined aquifers |
Aquifer parameters Yield | 50 to 300 lpm |
Transmissivity (T): | 1.49; 164.18 m2/day |
Permeability (K): | 0.25; 26.75 m/day |
Depth of Water level | 7m to 25m |
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Ground Water Level:: |
The Ground Water levels from the 38 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 |
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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 |
Check Dam |
Percolation Pond |
Recharge Pit |
Recharge Trench |
Others |
Ooranies |
Defunct Bore well Recharge |
Recharge Shaft |
Roof top RWH |
Hydro Fracturing |
Total |
239 |
50 |
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3 |
5 |
110 |
40 |
0 |
477 |
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Groundwater Potential as on March 2011 (as per CGWB): |
Net Groundwater Availability (in MCM) | 438.81 |
Existing Gross Groundwater draft for all users (in MCM) | 506.15 |
Stage of Groundwater development (in %) | 115 |
Categorization of District | Over -Exploited |
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Categorization of Firkas: |
The status of Categorization of Firkas as of March 2013 for the District in is shown below.
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Categorisation based on Extraction (as on March 2013)) |
No. of Firkas |
Firkas |
Over Exploited (>100%) |
22 |
Annur(N), Anupparpalayam, Coimbatore South, Ganapathi, Karumathampatti, Kinathukatavu, Kolarpatti, Kovilpalayam, Perianaickenpalayam, Perianegamam, Perur, Pollachi(N), Pollachi(S), Ramapattinam, Selakkarichal, Singanallur, Sulur, Thondamuthur, Thudialur, Vadachittur, Varapatti,ottakkal Mandabam |
Critical (90%-100%) |
2 |
Anur,Sarkar Samakulam |
Semi Critical (70%-90%) |
18 |
Alandurai, Karamadai, Kottur, Madukkarai, Marchinaickenpalayam, perur, Mettupalayam, Saravanampatti |
Safe (<70%) |
2 |
Anamalai, Valparai |
Others (Poor& Saline) |
- |
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Total |
33 |
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Water supply status as on 1.4.2017 |
Rural Habitations |
Total No. of Rural Habitations: 2238 |
Partially covered | 210 (10-39 lpcd ) |
Fully covered | 2028 (40 lpcd and above) |
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Urban Towns
( Water supply status - 1.4.2017) |
S.NO | Name of Towns | Population | Present water supply level LPCD |
Corporations |
1 | Coimbatore |
1050721 |
128 |
Municipalities |
1 | Mettupalayam |
69213 |
125 |
2 | Pollachi |
90180 |
104 |
3 | Valparai |
70859 |
122 |
Town Panchayats |
1 | Gudalur |
38859 |
137 |
2 | Narasimhanaickenpalayam |
17858 |
213 |
3 | Sarkarsamakulam |
10289 |
189 |
4 | Edikarai |
8686 |
165 |
5 | No.4 Veerapandi |
16953 |
183 |
6 | Karumathampatti |
35062 |
80 |
7 | Karamadai |
35166 |
153 |
8 | Anaimalai |
17208 |
74 |
9 | Dhaliyur |
11500 |
94 |
10 | Periyanaickenpalayam |
25930 |
123 |
11 | Annur |
20079 |
181 |
12 | Pallapalayam |
11910 |
181 |
13 | Erugur |
25691 |
156 |
14 | Vellalur |
24872 |
150 |
15 | Kannampalayam |
15868 |
176 |
16 | Madukarai |
30357 |
131 |
17 | Othakalmandapam |
12207 |
100 |
18 | Sulur |
27909 |
142 |
19 | Thirumalaiyanpalayam |
12164 |
85 |
20 | Ettimadai |
9352 |
202 |
21 | Sirumugai |
18223 |
99 |
22 | Zamin Uthukuli | 14859 | 132 |
23 | Odaiyakulam | 11999 | 133 |
24 | Vettaikaranpudur |
17392 |
137 |
25 | Kottur |
26627 |
138 |
26 | Perur |
8004 |
76 |
27 | Chettipalayam |
10366 |
113 |
28 | Thondamuthur |
11492 |
101 |
39 | Vedapatti |
11658 |
121 |
30 | Puluvapatti |
12853 |
110 |
31 | Kinathukadavu |
8653 |
99 |
32 | Sooleswaranpatti |
20104 |
90 |
33 | Periyanagamam |
7098 |
105 |
34 | Mupperipalayam |
10923 |
127 |
35 | Samathur |
5672 |
92 |
36 | Thenkarai |
7349 |
85 |
37 | Alandurai |
7221 |
91 |
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