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: 02/02/2021 | Sample Time: 15:30 Hrs | |
| Human Activities: fishing | 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: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.32 | mg/l |
| BOD | 0.80 | mg/l |
| Conductivity | 110.00 | µs/cm |
| Dissolved O2(DO) | 6.50 | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Fecal Streptococci | 12 | MPN/100ml |
| Nitrate-N | 0.03 | mg/l |
| pH | 7.20 | Unit |
| Temperature(Water) | 20 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 4.11 | mg/l |
| Calcium | 20.84 | mg/l |
| Chloride | 0.98 | mg/l |
| COD | 62.00 | mg/l |
| Fluoride | 0.17 | mg/l |
| Magnesium | 7.49 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.004 | mg/l |
| Potassium | 1.10 | mg/l |
| Sodium | 1.50 | mg/l |
| Sulphate | 9.78 | mg/l |
| Total Alkalinity | 38.00 | mg/l |
| Total Dissolved Solids(TDS) | 72.00 | mg/l |
| Total Fixed Solids(TFS) | 72.00 | mg/l |
| Total Hardness as CaCo3 | 78.00 | mg/l |
| Total Suspended Solids(TSS) | 48.00 | mg/l |
| Turbidity | NTU | |