S. No. | Location | Block | Age of tube well, Yr | Depth of tube well, m | Population exposed to F− contamination |
1 | Chitoud | Gurur | 10 | 46 | 2500 |
2 | Mirritola |
| 12 | 46 | 2000 |
3 | Boridkala |
| 8 | 55 | 2100 |
4 | Userwara |
| 10 | 61 | 2400 |
5 | Kaneri |
| 8 | 55 | 1800 |
6 | Bhulandabari |
| 25 | 46 | 2000 |
7 | Dhaneli |
| 8 | 49 | 2300 |
8 | Ranitarai | Balod | 12 | 40 | 2100 |
9 | Balod |
| 9 | 61 | 18,000 |
10 | Madwapathra |
| 7 | 46 | 1200 |
11 | Malganv |
| 13 | 61 | 1300 |
12 | Malganv |
| 10 | 46 | 1300 |
13 | Malganv |
| 17 | 76 | 1300 |
14 | Umerdhah |
| 12 | 40 | 2500 |
15 | Shikosha | Gunderdehi | 7 | 46 | 2500 |
16 | Limora |
| 20 | 46 | 1500 |
17 | Rangakatora |
| 25 | 55 | 2400 |
18 | Kachandur |
| 12 | 46 | 2600 |
19 | Gureda |
| 10 | 61 | 2800 |
20 | Gureda |
| 8 | 46 | 2800 |
21 | Gureda |
| 10 | 55 | 2800 |
22 | Gureda |
| 15 | 46 | 2800 |
23 | Shikola |
| 10 | 37 | 2100 |
24 | Parna |
| 7 | 61 | 2400 |
25 | Parna |
| 12 | 46 | 2400 |
26 | Naharkhapari |
| 10 | 55 | 2500 |
27 | Dondi | Dondi | 15 | 37 | 4000 |
28 | Kamta |
| 5 | 46 | 1800 |
29 | Awari |
| 8 | 37 | 2000 |
30 | Pusawad |
| 13 | 55 | 1500 |
31 | Kuwagondi |
| 20 | 46 | 1300 |
32 | Surdongar |
| 8 | 85 | 1200 |
33 | Dighwari |
| 5 | 46 | 900 |
34 | Chihero |
| 4 | 61 | 1200 |
35 | Aamadula |
| 25 | 46 | 1900 |
36 | Gudum |
| 10 | 43 | 2300 |
37 | Khairwahi |
| 10 | 76 | 1100 |
38 | Parsuli | Dondi Lohara | 15 | 46 | 2500 |
39 | Bharda |
| 12 | 46 | 1200 |
40 | Bhaihakuwa |
| 5 | 46 | 1100 |
41 | Jatadhah |
| 8 | 55 | 1200 |
42 | Sahganv |
| 10 | 61 | 1000 |
43 | Gainji |
| 15 | 46 | 1200 |
44 | Shikaritola |
| 7 | 40 | 1500 |
45 | Armurkasa |
| 13 | 43 | 1800 |
46 | Patratola |
| 5 | 37 | 1700 |
47 | Chikhalakasa |
| 17 | 55 | 2300 |
48 | Dalli-Rajhara |
| 25 | 37 | 20,000 |
49 | Borid |
| 8 | 55 | 1500 |
50 | Gujra |
| 10 | 55 | 2000 |