Namakkal District Profile
- Namakkal district is bounded by Tiruchirappalli district in the East, Erode district in the West, and Salem district in the North and Karur district in the South.
- The District lies between 11º 00'00”N to 11º 34’ 48”N Latitude, 77º 40'15”E to 78º 29' 30”E Longitude and has an areal extent of 3404 sq.km.
Physiography and Drainage:
- Namakkal district is characterized by undulating terrain with isolated hillocks, which are part of Eastern Ghats.
- Kolli hills range is the important hill in the district. The general slope of the area is towards south and southeast.
- Most of the southern part of the district is drained by Cauvery and its tributary Thirumanimuttar.
Rainfall:
The average annual rainfall and the 5 years rainfall collected from IMD, Chennai is as follows:
Actual Rainfall in mm | Normal Rainfall in mm | ||||
---|---|---|---|---|---|
2017 | 2018 | 2019 | 2020 | 2021 | |
783.7 | 649.3 | 630.5 | 629.2 | 1021.2 | 791.2 |
Geology:
Rock Type | Geological Formation | ||||
Hard Rock | Charnockite, Gneiss, Pegmatite, Granite, Alluvium |
Ground Water Level:
The Ground Water levels from the 34 number of observation wells of TWAD have been analysed for Post-Monsoon and Pre-Monsoon. 5 years average Ground water level in m Below Ground Level for pre and post monsoon is as follows:
Jan |
May |
Jan |
May |
Jan |
May |
Jan |
May |
Jan |
May |
5 Years |
5Years |
11.1 |
12.2 |
7.0 |
8.9 |
10.0 |
14.0 |
6.6 |
8.5 |
9.9 |
10.0 |
8.7 | 6.9 |
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 in district is as under.
Recharge Structures | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Check Dam | Percolation Pond | Recharge Pit | Recharge Trench | Others | Ooranies | Defunct Bore well Recharge | Recharge Shaft | Rooftop RWH | Hydro Fracturing | Total |
390 | 1 | 4 | 5 | 400 |
Categorization of Firkas:
The status of Categorization of firkas as of March 2020 for the District in is shown below.
Categorisation based on Extraction (as on 2020) | No. of Firkas | Firkas |
---|---|---|
Over Exploited (>100%) | 22 | Alanganatham, Erumaipatti, Kalappanaikanpatti, Kumarapalayam, Mallasamudram, Mangalapuram, Mohanur, Mullukurichi, Nallipalayam, Nallur, Namagiripettai, Namakkal, Pandamangalam, Paramathi, Puduchatram, Rasipuram, Sellappampatti, Senthamagalam, Tiruchengode, Vaiyappamalai, Valaiyapatti, Vennandur |
Critical (90%-100%) | 1 | Elachipalayam |
Semi Critical (70%-90%) | 4 | Jedarpalayam, Manickampalayam, Molasi, Pallapatti |
Safe (<70%) | 3 | Pallipalayam, Thirupulinadu, Valavanthinadu |
Others (Poor & Saline) | 0 | |
Total | 30 |
Rural Habitations
Total No. of Rural Habitations: 3936
Partially covered | 622 (10-39 lpcd ) |
Fully covered | 3314 (40 lpcd and above) |