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: 19/08/2020 | Sample Time: 13.30 | |
| Human Activities: None | Weather: Sunny | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Muddy and Moderately Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Boron | 6.97 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 22.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 9.21 | mg/l |
| Phosphate-P | 0.024 | mg/l |
| Potassium | 0.90 | mg/l |
| Sodium | 2.4 | mg/l |
| Total Alkalinity | 102.00 | mg/l |
| Total Dissolved Solids(TDS) | 45.00 | mg/l |
| Total Fixed Solids(TFS) | 192.00 | mg/l |
| Total Hardness as CaCo3 | 96.00 | mg/l |
| Turbidity | 43.50 | NTU |
| Conductivity | 147.00 | µs/cm |
| Temperature(Water) | 28 | ⁰C |
| Phenolpthalein Alkanity | NIL | mg/l |
| Total Suspended Solids(TSS) | 80.00 | mg/l |
| Calcium | 23.24 | mg/l |
| Fecal Coliform | 2100 | MPN/100ml |
| Nitrate-N | 0.66 | mg/l |
| Dissolved O2(DO) | 7.20 | mg/l |
| pH | 7.15 | Unit |
| Total Coliform | 7000 | MPN/100ml |
| Ammonia-N | BDL | mg/l |
| Sulphate | 9.68 | mg/l |
| BOD | 1.20 | mg/l |