West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Torsa D/S of Ghughumari | River Basin: GANGA | CPCB Station Code: 4719 |
| Sample Date: 12/11/2021 | Sample Time: 14:35 | |
| Human Activities: Fishing | 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 and moderately turbid | Odour: Fishy. | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 1.80 | mg/l |
| Conductivity | 97.64 | µs/cm |
| Dissolved O2(DO) | 7.30 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Fecal Streptococci | 33 | MPN/100ml |
| Nitrate-N | 0.08 | mg/l |
| pH | 6.91 | Unit |
| Temperature(Water) | 23 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 3.14 | mg/l |
| Calcium | 24.84 | mg/l |
| Chloride | 18.59 | mg/l |
| COD | 26.0 | mg/l |
| Fluoride | 0.10 | mg/l |
| Magnesium | 7.48 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | BDL | mg/l |
| Potassium | 1.10 | mg/l |
| Sodium | 1.10 | mg/l |
| Sulphate | 7.76 | mg/l |
| Total Alkalinity | 82.00 | mg/l |
| Total Dissolved Solids(TDS) | 48.0 | mg/l |
| Total Fixed Solids(TFS) | 72.00 | mg/l |
| Total Hardness as CaCo3 | 88.00 | mg/l |
| Total Suspended Solids(TSS) | 16.00 | mg/l |
| Turbidity | 5.92 | NTU |