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: 28/06/2021 | Sample Time: 10:20 | |
| 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: Light Green and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Suspended Solids(TSS) | 22.00 | mg/l |
| Turbidity | 4.41 | NTU |
| Ammonia-N | 0.12 | mg/l |
| BOD | 1.60 | mg/l |
| Conductivity | 43.78 | µs/cm |
| Dissolved O2(DO) | 7.60 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Fecal Streptococci | 24 | MPN/100ml |
| Nitrate-N | 0.09 | mg/l |
| pH | 7.67 | Unit |
| Temperature(Water) | 24 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 1.05 | mg/l |
| Calcium | 16.84 | mg/l |
| Chloride | 19.57 | mg/l |
| COD | 32.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 11.52 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Potassium | 0.7 | mg/l |
| Sodium | 1.6 | mg/l |
| Sulphate | 7.37 | mg/l |
| Total Alkalinity | 36.0 | mg/l |
| Total Dissolved Solids(TDS) | 28.00 | mg/l |
| Total Fixed Solids(TFS) | 12.00 | mg/l |
| Total Hardness as CaCo3 | 82.00 | mg/l |