Print
XClose
Press Information Bureau
Government of India
Ministry of Water Resources
27-August-2012 18:40 IST
Contamination of Ground Water in Tamil Nadu
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

 

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