| St. No. | Sampling locations | River system | Features of the stations | Longitude (N) | Latitude (E) |
| 01. | Mixing point | River | Agriculture, Commercial, Fish farm | 89˚31'18.6" | 22˚44'30.9" |
| 02. | Batiaghata Bridge | River | Agriculture, Fish farm, Household | 89˚30'38.6" | 22˚44'55.9" |
| 03. | Bodnakandi | River | Agriculture, Fish farm | 89˚30'22.8" | 22˚44'13.4" |
| 04. | Hatbati | River | Agriculture, Brick field | 89˚30'22.8" | 22˚44'39.9" |
| 05. | Mondirtola | River | Agriculture, Grave yard, Fish farm | 89˚30'20.3" | 22˚44'04.6" |
| 06 | Tiabunia | River | Agriculture, Fish farm | 89˚29'53.5" | 22˚44'04.8" |
| 07. | Chokshailmari | River | Agriculture, Food Industry | 89˚28'41.1" | 22˚46'10.7" |
| 08. | Koyaghat | Channel | Household, Agriculture, Brick field | 89˚28'15.6" | 22˚46'08.6" |
| 09 | Regulator | Channel | Household, Agriculture, Brick field | 89˚28'38.8" | 22˚46'47.2" |
| 10 | Koya Bazar | Channel | Household, Commercial, Industries | 89˚28'43.9" | 22˚46'47.6" |
| 11 | Brick Field | Channel | Household, Agriculture, Brick field | 89˚28'31.9" | 22˚46'23.8" |