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: 31/07/2020 | Sample Time: 14:45 | |
| Human Activities: None | Weather: Sunny | Water Body: Jaldhaka |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Brown and Muddy | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Sulphate | 27.82 | mg/l |
| Dissolved O2(DO) | 7.20 | mg/l |
| Magnesium | 3.45 | mg/l |
| BOD | 1.20 | mg/l |
| Turbidity | 9.65 | NTU |
| Potassium | 2.30 | mg/l |
| Conductivity | 32.41 | µs/cm |
| Ammonia-N | 0.18 | mg/l |
| Fecal Coliform | 2200 | MPN/100ml |
| Nitrate-N | 1.90 | mg/l |
| pH | 7.20 | Unit |
| Temperature(Water) | 30 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 3.73 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 32.00 | mg/l |
| Fluoride | BDL | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.243 | mg/l |
| Sodium | 5.40 | mg/l |
| Total Alkalinity | 40.00 | mg/l |
| Total Dissolved Solids(TDS) | 76.00 | mg/l |
| Total Fixed Solids(TFS) | 120.00 | mg/l |
| Total Hardness as CaCo3 | 30.00 | mg/l |
| Total Suspended Solids(TSS) | 110.00 | mg/l |
| Calcium | 8.82 | mg/l |