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: 26/03/2021 | Sample Time: 11:10 Hrs | |
| Human Activities: Fishing | Weather: Sunny | Water Body: Torsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown and Moderately Turbid. | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Conductivity | 64.15 | µs/cm |
| Ammonia-N | BDL | mg/l |
| Dissolved O2(DO) | 7.30 | mg/l |
| Fecal Streptococci | 24 | MPN/100ml |
| Nitrate-N | 0.05 | mg/l |
| pH | 7.24 | Unit |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 1.56 | mg/l |
| Calcium | 7.21 | mg/l |
| Chloride | 0.98 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 4.03 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Potassium | 0.80 | mg/l |
| Sulphate | 6.92 | mg/l |
| Total Alkalinity | 76.0 | mg/l |
| Total Dissolved Solids(TDS) | 26.00 | mg/l |
| Total Fixed Solids(TFS) | 68.00 | mg/l |
| Total Suspended Solids(TSS) | 42.00 | mg/l |
| Turbidity | 7.80 | NTU |
| BOD | 1.80 | mg/l |
| COD | 30.00 | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Sodium | 2.7 | mg/l |
| Total Hardness as CaCo3 | 32.00 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Temperature(Water) | 29 | ⁰C |