Contamination of Ground Water in Tamil Nadu
(Release ID :86871)
As a part of regular activity of ground
water regime monitoring, Central Ground Water Board under Ministry of Water
Resources carries out chemical analysis of ground water samples once a year.
These samples are collected from the network of ground water monitoring wells
during pre-monsoon period (April/May).
Last such analyses were carried out for ground
water samples collected during 2011. Chemical analyses of ground water samples
collected during 2012 are under progress.
As per the latest chemical quality data
available with CGWB, out of 451 samples spread over all the districts of Tamil
Nadu, high Chloride (>1000 mg/l) was encountered at 38 locations. High
fluoride (> 1.5 mg/l) was encountered in 48 samples and high nitrate was
encountered in 161 samples. District wise details are given below:-
District wise details of ground
water quality in Tamil Nadu for the year 2011
S. No.
|
District
|
No. of samples collected
|
No. of samples having Chloride >
1000 mg/l
|
No. of samples having Fluoride >
1.5 mg/l
|
No. of samples having Nitrate > 45
mg/l
|
1
|
Chennai
|
10
|
0
|
0
|
2
|
2
|
Coimbatore
|
37
|
3
|
6
|
20
|
3
|
Cuddalore (Composite)
|
13
|
1
|
0
|
2
|
4
|
Dharmapuri (Composite)
|
17
|
0
|
3
|
9
|
5
|
Dindigul
|
15
|
0
|
1
|
8
|
6
|
Erode
|
29
|
0
|
4
|
21
|
7
|
Kanchipuram
|
18
|
0
|
0
|
5
|
8
|
Kanyakumari
|
14
|
0
|
0
|
7
|
9
|
Karur
|
8
|
1
|
2
|
3
|
10
|
Madurai
|
4
|
0
|
2
|
1
|
11
|
Nagaipattinam
|
10
|
0
|
0
|
2
|
12
|
Namakkal
|
17
|
2
|
3
|
7
|
13
|
Nilgiris
|
8
|
0
|
0
|
2
|
14
|
Perambalur (Composite)
|
12
|
2
|
3
|
2
|
15
|
Pudukkotai
|
16
|
3
|
3
|
7
|
16
|
Ramnad
|
19
|
7
|
1
|
7
|
17
|
Salem
|
24
|
5
|
6
|
12
|
18
|
Sivaganga
|
11
|
2
|
1
|
5
|
19
|
Thiruvannamalai
|
8
|
0
|
1
|
1
|
20
|
Thanjavur
|
21
|
6
|
7
|
3
|
21
|
Theni
|
9
|
1
|
0
|
3
|
22
|
Thiruvallur
|
16
|
0
|
0
|
1
|
23
|
Thiruvarur
|
8
|
0
|
1
|
2
|
24
|
Thirunelveli
|
26
|
1
|
1
|
4
|
25
|
Trichirappalli
|
14
|
1
|
0
|
10
|
26
|
Tuticorin
|
21
|
1
|
0
|
2
|
27
|
Vellore
|
15
|
2
|
2
|
6
|
28
|
Villupuram
|
17
|
0
|
1
|
5
|
29
|
Virudunagar
|
10
|
0
|
0
|
2
|
30
|
Puduchery
|
4
|
0
|
0
|
0
|
Total
|
451
|
38
|
48
|
161
|
|
Central Ground Water
Board takes the following steps to inform the citizens:
·
Reports
are compiled, which are sent to the State Govt. Agencies for further use.
·
Ground
water quality related information is put up on the official website of the
Board.
·
District
ground water brochures comprising maps, tables and other relevant information
related to availability and quality of ground water resources are prepared.
These brochures are accessible through the official website of the Board. District ground water brochures in local
languages are also distributed during mass awareness programmes, exhibitions,
fairs etc.
·
Mass
Awareness Programmes are organised to create
awareness regarding local ground water problems and water conservation
including ground water quality.
This information was given by the Minister of State for
Water Resources and Minority Affairs Shri Vincent H. Pala in a written reply to
a question in Rajya Sabha
today.
…
MA/VN
(Release ID :86871)
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