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: 26/07/2019 | Sample Time: 11:10 | |
| 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: Moderately Brown | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.50 | mg/l |
| Conductivity | 97.22 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 11000 | MPN/100ml |
| Nitrate-N | 0.39 | mg/l |
| pH | 7.60 | Unit |
| Temperature | 28 | ⁰C |
| Total Coliform | 22000 | MPN/100ml |
| Boron | 0.016 | mg/l |
| Calcium | 22.44 | mg/l |
| Chloride | 15.65 | mg/l |
| COD | 24.37 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 12.67 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.083 | mg/l |
| Potassium | 1.80 | mg/l |
| Sodium | 1.30 | mg/l |
| Sulphate | 9.24 | mg/l |
| Total Alkalinity | 82.00 | mg/l |
| Total Dissolved Solids(TDS) | 62.00 | mg/l |
| Total Fixed Solids(TFS) | 22.00 | mg/l |
| Total Hardness as CaCo3 | 72.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 52.00 | mg/l |
| Turbidity | 32.10 | NTU |
| Ammonia-N | BDL | mg/l |