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: 21/10/2019 | Sample Time: 10:05 | |
| 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: Moderate Turbid Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Nitrate-N | 0.68 | mg/l |
| Calcium | 12.83 | mg/l |
| Chloride | 10.99 | mg/l |
| COD | 48.00 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 3.46 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.085 | mg/l |
| Potassium | 3.20 | mg/l |
| Sodium | 0.90 | mg/l |
| Sulphate | 13.49 | mg/l |
| pH | 6.80 | Unit |
| Temperature | 29 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 0.025 | mg/l |
| Total Alkalinity | 60.00 | mg/l |
| Total Dissolved Solids(TDS) | 58.00 | mg/l |
| Total Fixed Solids(TFS) | 146.00 | mg/l |
| Total Hardness as CaCo3 | 44.00 | mg/l |
| Total Suspended Solids(TSS) | 40.00 | mg/l |
| Turbidity | 5.41 | NTU |
| Ammonia-N | BDL | mg/l |
| BOD | 1.90 | mg/l |
| Conductivity | 105.00 | µs/cm |