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: 23/03/2021 | Sample Time: 12:10 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 Slightly Turbid | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 1.20 | mg/l |
| Conductivity | 94.65 | µs/cm |
| Fecal Streptococci | 14 | MPN/100ml |
| pH | 7.40 | Unit |
| Temperature(Water) | 26 | ⁰C |
| Boron | 2.15 | mg/l |
| Calcium | 23.24 | mg/l |
| COD | 38.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 10.95 | mg/l |
| Phosphate-P | 0.004 | mg/l |
| Potassium | 1.30 | mg/l |
| Sulphate | 8.34 | mg/l |
| Total Alkalinity | 84.0 | mg/l |
| Total Dissolved Solids(TDS) | 58.00 | mg/l |
| Total Fixed Solids(TFS) | 138.00 | mg/l |
| Total Hardness as CaCo3 | 96.00 | mg/l |
| Turbidity | 20.50 | NTU |
| Dissolved O2(DO) | 7.30 | mg/l |
| Nitrate-N | 0.04 | mg/l |
| Chloride | 1.96 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Sodium | 2.60 | mg/l |
| Total Suspended Solids(TSS) | 20.00 | mg/l |
| Fecal Coliform | 1300 | MPN/100ml |
| Total Coliform | 8000 | MPN/100ml |