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: 21/10/2019 | Sample Time: 15:20 | |
| 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: Moderate Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 1.80 | mg/l |
| Conductivity | 114.50 | µs/cm |
| Dissolved O2(DO) | 7.30 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Nitrate-N | 0.81 | mg/l |
| pH | 7.80 | Unit |
| Temperature | 29 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 0.039 | mg/l |
| Calcium | 23.25 | mg/l |
| Chloride | 11.74 | mg/l |
| COD | 62.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 6.91 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Sodium | 1.00 | mg/l |
| Sulphate | 30.84 | mg/l |
| Total Alkalinity | 52.00 | mg/l |
| Total Dissolved Solids(TDS) | 70.00 | mg/l |
| Total Fixed Solids(TFS) | 172.00 | mg/l |
| Phosphate-P | 0.106 | mg/l |
| Potassium | 3.20 | mg/l |
| Total Hardness as CaCo3 | 82.00 | mg/l |
| Total Suspended Solids(TSS) | 42.00 | mg/l |
| Turbidity | 6.49 | NTU |