West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Torsa at Hasimara | River Basin: GANGA | CPCB Station Code: 4724 |
| Sample Date: 25/01/2022 | Sample Time: 11:20 | |
| Human Activities: None | Weather: Cloudy. | Water Body: Torsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.17 | mg/l |
| BOD | 0.80 | mg/l |
| Conductivity | 94.60 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 13000 | MPN/100ml |
| Fecal Streptococci | 14 | MPN/100ml |
| Nitrate-N | 0.03 | mg/l |
| pH | 7.52 | Unit |
| Temperature(Water) | 14 | ⁰C |
| Total Coliform | 50000 | MPN/100ml |
| Boron | 2.22 | mg/l |
| Calcium | 18.43 | mg/l |
| Chloride | 6.85 | mg/l |
| COD | 26.00 | mg/l |
| Fluoride | 0.14 | mg/l |
| Magnesium | 17.85 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Potassium | 0.80 | mg/l |
| Sodium | 1.20 | mg/l |
| Sulphate | 7.42 | mg/l |
| Total Alkalinity | 74.00 | mg/l |
| Total Dissolved Solids(TDS) | 56.00 | mg/l |
| Total Fixed Solids(TFS) | 22.00 | mg/l |
| Total Hardness as CaCo3 | 108.00 | mg/l |
| Total Suspended Solids(TSS) | 21.00 | mg/l |
| Turbidity | 2.31 | NTU |