Lok Sabha Question No. 2425 (UNSTARRED), answered on 2018-03-09
Subject: Chemical Contamination of Rivers
Ministry: ENVIRONMENT,  FORESTS AND CLIMATE CHANGE
Asked by: MD. BADARIDDOZA KHAN, MOHAMMAD SALIM

## GOVERNMENT OF INDIA

## MINISTRY OF ENVIRONMENT, FOREST AND CLIMATE CHANGE

## LOK SABHA UNSTARRED QUESTION NO.2425

TO BE ANSWERED ON 09.03.2018

## Chemical Contamination of Rivers

2425. SHRI MD. BADARUDDOZA KHAN: SHRI MOHD. SALIM:

Will the Minister of ENVIRONMENT, FOREST AND CLIMATE CHANGE be pleased to state:

- (a)    whether there are any report regarding the status of chemical contamination of the rivers, lakes and other fresh water bodies in the country; and
- (b) if  so,  the  State-wise  details  of  the  major  parameters  of  contamination  of  such  water bodies thereof?

## ANSWER

MINISTER  OF  STATE  IN  THE  MINISTRY  OF  ENVIRONMENT,  FOREST  AND  CLIMATE CHANGE (DR. MAHESH SHARMA)

- (a) &  (b)  Central  Pollution  Control  Board  (CPCB)  in  association  with  the  State  Pollution Control  Boards  monitors  the  river  water  quality  across  the  country  through  a  network  of monitoring  stations  under  the  National  Water  Quality  Monitoring  Programme.  Water  quality assessment for ascertaining the chemical contamination of rivers, lakes and other fresh water bodies  has  been  carried  out  for  253  rivers,  133  lakes,  47  ponds  and  79  tanks  across  the country.  Chemical  Oxygen  Demand  (COD)  is  a  summary  parameter  to  assess  the  chemical contamination of aquatic resources.

Based on the water quality monitoring carried out by CPCB over the period 2013- 2017, variable concentration of COD has been observed in rivers, lakes and other fresh water bodies, as per category-wise details given below:

| Category   | Criteria (COD concentration)   |   Rivers |   Lakes |   Ponds |   Tanks |
|------------|--------------------------------|----------|---------|---------|---------|
| I          | > 250 mg/l                     |       38 |      27 |       3 |      18 |
| II         | 170 - 250 mg/l                 |       17 |      20 |      11 |      14 |
| III        | 85 - 170 mg/l                  |       53 |      31 |      10 |      25 |
| IV         | 50 - 85 mg/l                   |       67 |      27 |       8 |      11 |
| V          | 25- 50 mg/l                    |       78 |      28 |      15 |      11 |
| Total      | Total                          |      253 |     133 |      47 |      79 |

There are 38 rivers, 27 lakes, 3 ponds and 18 tanks which are critically polluted having a COD  concentration  of  more  than  250  mg/l,  which  is  the  discharge  standard  for  a  polluting source such as sewage treatment plants and industrial effluent treatment plants. The State-wise list of these polluted rivers, lakes, ponds and tanks are given in Annexure.

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## Annexure

Annexure referred to in reply to parts (a) & (b) of Lok Sabha Unstarred Question No. 2425 to be answered on Friday, the 9 th March, 2018 on 'Chemical Contamination of Rivers'

## State-wise details of critically polluted rivers, lakes, ponds and tanks based on COD concentration levels

|   S.No. | State Name                        | Rivers                                                              | Water bodies (lakes, ponds & tanks)                                                                                                                                                                                                                                                         |
|---------|-----------------------------------|---------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|       1 | Assam                             | -                                                                   | Elangabeel                                                                                                                                                                                                                                                                                  |
|       2 | Bihar                             | Sikrana                                                             | -                                                                                                                                                                                                                                                                                           |
|       3 | Chhattisgarh                      | -                                                                   | Hitkasa Tailing Reservoir                                                                                                                                                                                                                                                                   |
|       4 | Daman, Diu and Dadra Nagar Haveli | Damanganga                                                          | -                                                                                                                                                                                                                                                                                           |
|       5 | Delhi                             | Yamuna                                                              | -                                                                                                                                                                                                                                                                                           |
|       6 | Gujarat                           | Bhadar, Khari, Sabarmati                                            | Moonsar                                                                                                                                                                                                                                                                                     |
|       7 | Haryana                           | Ghaggar                                                             | -                                                                                                                                                                                                                                                                                           |
|       8 | Himachal Pradesh                  | Giri, Sukhana                                                       | Khaziar                                                                                                                                                                                                                                                                                     |
|       9 | Jammu & Kashmir                   | Jhelum                                                              | -                                                                                                                                                                                                                                                                                           |
|      10 | Karnataka                         | Bhima                                                               | Arakere, Bellandur, Dalavai, Hebbal, Hulimavu, Karihobanahalli, Mulbhagal, Puttenahalli, Shettykere, Singasandra, Somasundrapalya, Ulsoor, Yediyur, Yennehole, Aianakere, Beenniganahalli, Dhorekere, Herekere, Madavara, Mavenakere, Melekote, Pavagada, Shivapura, Uttarahalli Doraikere, |
|      11 | Kerala                            | Chitrapuzha, Periyar, Pamba, Neeleswaram, Karamana, Korayar, Thirur | Kayamkula Kayal, Kodungalloor, Paravur, Punnamada Kayal, Vembanad, Vembanadu                                                                                                                                                                                                                |
|      12 | Madhya Pradesh                    | Betwa, Gour, Khan, Narmada                                          | -                                                                                                                                                                                                                                                                                           |
|      13 | Maharashtra                       | Mithi, Patalganga                                                   | -                                                                                                                                                                                                                                                                                           |
|      14 | Meghalaya                         | Umkhrah                                                             | -                                                                                                                                                                                                                                                                                           |
|      15 | Nagaland                          | Dhansiri                                                            | -                                                                                                                                                                                                                                                                                           |
|      16 | Punjab                            | Ghaggar, Satluj                                                     | -                                                                                                                                                                                                                                                                                           |
|      17 | Tamil Nadu                        | Cauvery, Sarabanga, Thirumanimuthar, Vasista                        | -                                                                                                                                                                                                                                                                                           |
|      18 | Telangana                         | Musi                                                                | Fox Sagar, Laxminarayana, Miralam, Noor Md. Kunta, Saroornagar, Asani Kunta, Sai Chivuru, Chinna Waddepally, Gandhigudum, Kajipally, Kistaraddy, Mallapur, Premajipet                                                                                                                       |
|      19 | Uttar Pradesh                     | Hindon, Kali (W), Kalinadi (E)                                      | -                                                                                                                                                                                                                                                                                           |
|      20 | Uttarakhand                       | Bhalla, Dhela                                                       | -                                                                                                                                                                                                                                                                                           |
|      21 | West Bengal                       | Damodar                                                             | -                                                                                                                                                                                                                                                                                           |