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: 23/07/2020 | Sample Time: 15:10 | |
| Human Activities: Bathing,washing and fishing | Weather: Cloudy | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately brown and muddy | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 2.23 | mg/l |
| Calcium | 16.84 | mg/l |
| Chloride | 13.70 | mg/l |
| COD | 38.00 | mg/l |
| Magnesium | 11.52 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Potassium | 8.70 | mg/l |
| Sodium | 1.20 | mg/l |
| Sulphate | 15.16 | mg/l |
| Total Dissolved Solids(TDS) | 48.00 | mg/l |
| BOD | 2.00 | mg/l |
| Conductivity | 114.21 | µs/cm |
| Dissolved O2(DO) | 7.10 | mg/l |
| Fecal Coliform | 1300 | MPN/100ml |
| Nitrate-N | 0.96 | mg/l |
| Temperature(Water) | 28 | ⁰C |
| pH | 7.40 | Unit |
| Fluoride | 0.12 | mg/l |
| Total Alkalinity | 62.00 | mg/l |
| Total Fixed Solids(TFS) | 190.00 | mg/l |
| Total Hardness as CaCo3 | 82.00 | mg/l |
| Total Suspended Solids(TSS) | 96.00 | mg/l |
| Ammonia-N | BDL | mg/l |
| Phosphate-P | 0.108 | mg/l |
| Turbidity | 13.40 | NTU |