West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Jaldhaka at Dhupguri | River Basin: Tista | CPCB Station Code: 4717 |
| Sample Date: 12/11/2021 | Sample Time: 10:20 Hrs | |
| Human Activities: None | Weather: Sunny and Clear | Water Body: Jaldhaka |
| 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 | 1.50 | mg/l |
| Conductivity | 36.94 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Fecal Streptococci | 70 | MPN/100ml |
| Nitrate-N | 0.07 | mg/l |
| pH | 7.70 | Unit |
| Temperature(Water) | 21 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 4.43 | mg/l |
| Calcium | 6.41 | mg/l |
| Chloride | 8.81 | mg/l |
| COD | 16.0 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 4.60 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | BDL | mg/l |
| Potassium | 0.70 | mg/l |
| Sodium | 1.00 | mg/l |
| Sulphate | 6.94 | mg/l |
| Total Alkalinity | 30.00 | mg/l |
| Total Dissolved Solids(TDS) | 18.0 | mg/l |
| Total Fixed Solids(TFS) | 44.00 | mg/l |
| Total Hardness as CaCo3 | 32.00 | mg/l |
| Total Suspended Solids(TSS) | 20.00 | mg/l |
| Turbidity | 0.35 | NTU |