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: 10/06/2022 | Sample Time: 10:20 | |
| Human Activities: None | Weather: Cloudy | Water Body: Jaldhaka |
| 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 | 0.18 | mg/l |
| BOD | 1.80 | mg/l |
| Conductivity | 116.03 | µs/cm |
| Dissolved O2(DO) | 6.20 | mg/l |
| Fecal Coliform | 1400 | MPN/100ml |
| Fecal Streptococci | 23 | MPN/100ml |
| Nitrate-N | 0.49 | mg/l |
| pH | 7.30 | Unit |
| Temperature(Water) | 25 | ⁰C |
| Total Coliform | 2600 | MPN/100ml |
| Boron | 3.26 | mg/l |
| Calcium | 13.60 | mg/l |
| Chloride | 0.97 | mg/l |
| COD | 5.20 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 6.31 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.016 | mg/l |
| Potassium | 3.60 | mg/l |
| Sodium | 4.50 | mg/l |
| Sulphate | 9.89 | mg/l |
| Total Alkalinity | 58.00 | mg/l |
| Total Dissolved Solids(TDS) | 58.00 | mg/l |
| Total Fixed Solids(TFS) | 422.00 | mg/l |
| Total Hardness as CaCo3 | 60.00 | mg/l |
| Total Suspended Solids(TSS) | 642.00 | mg/l |
| Turbidity | 155.00 | NTU |