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: 28/10/2021 | Sample Time: 10:15 | |
| 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: Light Green and Clear | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 0.80 | mg/l |
| Conductivity | 113.40 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 2100 | MPN/100ml |
| Fecal Streptococci | 11 | MPN/100ml |
| Nitrate-N | 0.12 | mg/l |
| pH | 6.60 | Unit |
| Temperature(Water) | 27 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 0.39 | mg/l |
| Calcium | 20.04 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 16.00 | mg/l |
| Fluoride | 0.11 | mg/l |
| Magnesium | 3.46 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.003 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 1.40 | mg/l |
| Sulphate | 11.18 | mg/l |
| Total Alkalinity | 76.00 | mg/l |
| Total Dissolved Solids(TDS) | 20.00 | mg/l |
| Total Fixed Solids(TFS) | 40.00 | mg/l |
| Total Hardness as CaCo3 | 62.00 | mg/l |
| Total Suspended Solids(TSS) | 20.00 | mg/l |
| Turbidity | 36.11 | NTU |