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: 18/07/2022 | Sample Time: 12:20 | |
| Human Activities: None | Weather: Sunny and Clear. | Water Body: Siltorsa |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately Brown and turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 2.00 | mg/l |
| Conductivity | 97.84 | µs/cm |
| Dissolved O2(DO) | 6.10 | mg/l |
| Fecal Coliform | 3300 | MPN/100ml |
| Fecal Streptococci | 24 | MPN/100ml |
| Nitrate-N | 0.15 | mg/l |
| pH | 7.94 | Unit |
| Temperature(Water) | 26 | ⁰C |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 2.08 | mg/l |
| Calcium | 22.40 | mg/l |
| Chloride | 2.93 | mg/l |
| COD | 51.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 4.86 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.04 | mg/l |
| Potassium | 11.00 | mg/l |
| Sodium | 3.10 | mg/l |
| Sulphate | 10.24 | mg/l |
| Total Alkalinity | 58.00 | mg/l |
| Total Dissolved Solids(TDS) | 46.00 | mg/l |
| Total Fixed Solids(TFS) | 262.00 | mg/l |
| Total Hardness as CaCo3 | 76.00 | mg/l |
| Total Suspended Solids(TSS) | 3150.00 | mg/l |
| Turbidity | 50.70 | NTU |