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: 05/02/2021 | Sample Time: 12:30 Hrs | |
| Human Activities: None | Weather: Sunny | Water Body: Torsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: light Green and Clear | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.32 | mg/l |
| BOD | 1.20 | mg/l |
| Conductivity | 52.97 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Fecal Streptococci | 20 | MPN/100ml |
| Nitrate-N | 0.04 | mg/l |
| pH | 7.44 | Unit |
| Temperature(Water) | 22 | ⁰C |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 3.53 | mg/l |
| Calcium | 14.43 | mg/l |
| Chloride | 5.87 | mg/l |
| COD | 38.00 | mg/l |
| Fluoride | 0.17 | mg/l |
| Magnesium | 4.03 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.005 | mg/l |
| Potassium | 1.0 | mg/l |
| Sodium | 2.70 | mg/l |
| Sulphate | 6.89 | mg/l |
| Total Alkalinity | 24.00 | mg/l |
| Total Dissolved Solids(TDS) | 22.00 | mg/l |
| Total Fixed Solids(TFS) | 54.00 | mg/l |
| Total Hardness as CaCo3 | 50.00 | mg/l |
| Total Suspended Solids(TSS) | 76.00 | mg/l |
| Turbidity | NTU | |