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: 21/09/2020 | Sample Time: 14:30 | |
| Human Activities: Fishing | Weather: Cloudy,high wind and Humid. | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green | Odour: Odour Free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Phosphate-P | 0.017 | mg/l |
| Potassium | 2.00 | mg/l |
| BOD | 2.00 | mg/l |
| Conductivity | 87.03 | µs/cm |
| Dissolved O2(DO) | 7.80 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 1.69 | mg/l |
| pH | 7.40 | Unit |
| Temperature(Water) | 27 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 4.59 | mg/l |
| Calcium | 12.02 | mg/l |
| Chloride | 1.96 | mg/l |
| COD | 28.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 10.94 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Sulphate | 28.84 | mg/l |
| Total Alkalinity | 70.00 | mg/l |
| Total Hardness as CaCo3 | 68.00 | mg/l |
| Total Suspended Solids(TSS) | 119.00 | mg/l |
| Turbidity | 53.80 | NTU |
| Total Dissolved Solids(TDS) | 116.00 | mg/l |
| Ammonia-N | BDL | mg/l |
| Total Fixed Solids(TFS) | 36.00 | mg/l |
| Sodium | 0.50 | mg/l |