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: 21/09/2020 | Sample Time: 16:00 | |
| Human Activities: Fishing and Cattle wading | Weather: Cloudy,high wind and Humid. | Water Body: Jaldhaka |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green | Odour: Odour Free | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 2.10 | mg/l |
| Turbidity | 20.30 | NTU |
| pH | 7.24 | Unit |
| COD | 30.00 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 1.73 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.012 | mg/l |
| Potassium | 1.90 | mg/l |
| Sodium | 0.60 | mg/l |
| Sulphate | 16.00 | mg/l |
| Total Alkalinity | 26.00 | mg/l |
| Total Dissolved Solids(TDS) | 198.00 | mg/l |
| Total Fixed Solids(TFS) | 30.00 | mg/l |
| Total Hardness as CaCo3 | 20.00 | mg/l |
| Total Suspended Solids(TSS) | 210.00 | mg/l |
| Ammonia-N | 0.19 | mg/l |
| Conductivity | 44.36 | µs/cm |
| Dissolved O2(DO) | 6.20 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Nitrate-N | 0.91 | mg/l |
| Boron | 3.14 | mg/l |
| Calcium | 5.61 | mg/l |
| Chloride | 1.96 | mg/l |
| Total Coliform | 22000 | MPN/100ml |
| Temperature(Water) | 28 | ⁰C |