West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Siltorsa at Hasimara | River Basin: Tista | CPCB Station Code: 4718 |
| Sample Date: 08/10/2020 | Sample Time: 13:10 | |
| Human Activities: Fishing | Weather: Sunny and Clear. | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Conductivity | 124.10 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 3300 | MPN/100ml |
| Nitrate-N | 0.92 | mg/l |
| pH | 7.20 | Unit |
| Temperature(Water) | 28 | ⁰C |
| Boron | 4.74 | mg/l |
| Calcium | 13.62 | mg/l |
| Chloride | 13.69 | mg/l |
| COD | 52.00 | mg/l |
| Fluoride | BDL | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.011 | mg/l |
| Potassium | 0.90 | mg/l |
| Sodium | 0.50 | mg/l |
| Sulphate | 20.63 | mg/l |
| Total Alkalinity | 62.0 | mg/l |
| Total Dissolved Solids(TDS) | 88.00 | mg/l |
| Total Hardness as CaCo3 | 60.00 | mg/l |
| Total Suspended Solids(TSS) | 22.00 | mg/l |
| Turbidity | 37.90 | NTU |
| Ammonia-N | BDL | mg/l |
| BOD | 0.80 | mg/l |
| Total Coliform | 11000 | MPN/100ml |
| Magnesium | 7.49 | mg/l |
| Total Fixed Solids(TFS) | 168.00 | mg/l |