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: 11/12/2020 | Sample Time: 12:30 | |
| Human Activities: Bathing and Washing . | 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 | Odour: Odour Free | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Phosphate-P | 0.012 | mg/l |
| Potassium | 0.70 | mg/l |
| Sodium | 1.10 | mg/l |
| Sulphate | 9.43 | mg/l |
| Total Alkalinity | 50.00 | mg/l |
| Total Suspended Solids(TSS) | 48.00 | mg/l |
| Total Dissolved Solids(TDS) | 48.00 | mg/l |
| Total Hardness as CaCo3 | 74.00 | mg/l |
| Ammonia-N | 0.15 | mg/l |
| BOD | 1.60 | mg/l |
| Conductivity | 61.12 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Streptococci | 33 | MPN/100ml |
| Nitrate-N | 0.003 | mg/l |
| pH | 7.46 | Unit |
| Temperature(Water) | 21 | ⁰C |
| Total Coliform | 22000 | MPN/100ml |
| Boron | 2.37 | mg/l |
| Chloride | 0.98 | mg/l |
| COD | 36.00 | mg/l |
| Fluoride | 0.12 | mg/l |
| Magnesium | 9.79 | mg/l |
| Calcium | 16.03 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Total Fixed Solids(TFS) | 106.00 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Turbidity | 15.80 | NTU |