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: 26/10/2021 | Sample Time: 12:00 | |
| 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 brown and moderately Turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.19 | mg/l |
| BOD | 1.20 | mg/l |
| Conductivity | 64.90 | µs/cm |
| Dissolved O2(DO) | 7.10 | mg/l |
| Fecal Coliform | 2200 | MPN/100ml |
| Fecal Streptococci | 14 | MPN/100ml |
| Nitrate-N | 0.07 | mg/l |
| pH | 7.24 | Unit |
| Temperature(Water) | 25 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 0.66 | mg/l |
| Calcium | 10.42 | mg/l |
| Chloride | 0.978 | mg/l |
| COD | 12.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 2.88 | mg/l |
| Phosphate-P | 0.002 | mg/l |
| Potassium | 1.00 | mg/l |
| Sodium | 2.40 | mg/l |
| Sulphate | 3.28 | mg/l |
| Total Alkalinity | 62.00 | mg/l |
| Total Dissolved Solids(TDS) | 18.00 | mg/l |
| Total Fixed Solids(TFS) | 482.00 | mg/l |
| Total Hardness as CaCo3 | 36.00 | mg/l |
| Total Suspended Solids(TSS) | 48.00 | mg/l |
| Turbidity | 233.00 | NTU |
| Phenolpthalein Alkanity | NIL | mg/l |