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: 21/01/2020 | Sample Time: 11:15 Hrs | |
| Human Activities: fishing. | Weather: Clear and Cloudy | 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: Fishy | Visible effluent discharge: None. |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Calcium | 11.22 | mg/l |
| COD | 41.00 | mg/l |
| Fluoride | 0.14 | mg/l |
| Magnesium | 4.61 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.020 | mg/l |
| Potassium | 1.6 | mg/l |
| Sodium | 0.8 | mg/l |
| Sulphate | 10.83 | mg/l |
| Total Dissolved Solids(TDS) | 56.00 | mg/l |
| Total Fixed Solids(TFS) | 338.00 | mg/l |
| Total Hardness as CaCo3 | 44.0 | mg/l |
| Total Suspended Solids(TSS) | 18.00 | mg/l |
| Turbidity | 124.00 | NTU |
| Dissolved O2(DO) | 6.80 | mg/l |
| pH | 7.40 | Unit |
| Temperature | 18 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 3.95 | mg/l |
| Ammonia-N | 0.17 | mg/l |
| Chloride | 16.63 | mg/l |
| BOD | 1.20 | mg/l |
| Total Alkalinity | 36.00 | mg/l |
| Conductivity | 78.19 | µs/cm |
| Fecal Coliform | 3300 | MPN/100ml |
| Nitrate-N | 0.47 | mg/l |