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: 29/06/2021 | Sample Time: 13:30 | |
| 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: Light Brown and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 2.10 | mg/l |
| Conductivity | 121.68 | µs/cm |
| Dissolved O2(DO) | 6.70 | mg/l |
| Fecal Coliform | 2300 | MPN/100ml |
| Fecal Streptococci | 27 | MPN/100ml |
| Nitrate-N | 0.32 | mg/l |
| pH | 8.70 | Unit |
| Temperature(Water) | 24 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 1.91 | mg/l |
| Calcium | 22.45 | mg/l |
| Chloride | 28.37 | mg/l |
| COD | 42.00 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 11.52 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.006 | mg/l |
| Potassium | 1.0 | mg/l |
| Sodium | 2.6 | mg/l |
| Sulphate | 20.0 | mg/l |
| Total Alkalinity | 50.0 | mg/l |
| Total Dissolved Solids(TDS) | 72.0 | mg/l |
| Total Fixed Solids(TFS) | 44.00 | mg/l |
| Total Hardness as CaCo3 | 96.00 | mg/l |
| Total Suspended Solids(TSS) | 36.00 | mg/l |
| Turbidity | 0.71 | NTU |