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: 15/07/2022 | Sample Time: 10:40 | |
| Human Activities: None | Weather: Sunny and Clear. | Water Body: Torsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately Brown and turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Suspended Solids(TSS) | 134.00 | mg/l |
| Turbidity | 670.00 | NTU |
| Ammonia-N | BDL | mg/l |
| BOD | 1.90 | mg/l |
| Nitrate-N | 0.17 | mg/l |
| pH | 7.61 | Unit |
| Temperature(Water) | 26 | ⁰C |
| Chloride | 2.93 | mg/l |
| COD | 16.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 1.94 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.09 | mg/l |
| Potassium | 2.10 | mg/l |
| Sodium | 2.80 | mg/l |
| Sulphate | 11.71 | mg/l |
| Total Alkalinity | 54.00 | mg/l |
| Total Dissolved Solids(TDS) | 58.00 | mg/l |
| Total Fixed Solids(TFS) | 1814.00 | mg/l |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 0.87 | mg/l |
| Calcium | 16.00 | mg/l |
| Conductivity | 102.40 | µs/cm |
| Dissolved O2(DO) | 7.10 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Fecal Streptococci | 38 | MPN/100ml |
| Total Hardness as CaCo3 | 48.00 | mg/l |