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: 26/02/2020 | Sample Time: 12:30 hrs | |
| Human Activities: NIL | Weather: Rainy | Water Body: Torsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Turbid and Light Brown | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Conductivity | 57.81 | µs/cm |
| Dissolved O2(DO) | 8.60 | mg/l |
| Fecal Coliform | 2300 | MPN/100ml |
| Nitrate-N | 1.58 | mg/l |
| pH | 7.82 | Unit |
| Temperature | 18 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 7.29 | mg/l |
| Calcium | 15.23 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 38.00 | mg/l |
| Fluoride | 0.15 | mg/l |
| Magnesium | 8.64 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Potassium | 0.70 | mg/l |
| Sodium | 2.30 | mg/l |
| Sulphate | 13.28 | mg/l |
| Total Alkalinity | 54.00 | mg/l |
| Total Dissolved Solids(TDS) | 182.0 | mg/l |
| Total Fixed Solids(TFS) | 154.00 | mg/l |
| Total Hardness as CaCo3 | 68.00 | mg/l |
| Total Suspended Solids(TSS) | 93.0 | mg/l |
| Turbidity | 19.10 | NTU |
| Ammonia-N | 0.16 | mg/l |
| BOD | 2.10 | mg/l |