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: 24/01/2020 | Sample Time: 12:10 Hrs | |
| Human Activities: None. | Weather: Clear and Sunny | 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 |
| Total Dissolved Solids(TDS) | 72.00 | mg/l |
| Total Fixed Solids(TFS) | 18.00 | mg/l |
| Total Hardness as CaCo3 | 58.00 | mg/l |
| Calcium | 14.43 | mg/l |
| Chloride | 14.68 | mg/l |
| COD | 36.00 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 6.34 | mg/l |
| Total Suspended Solids(TSS) | 30.00 | mg/l |
| BOD | 0.80 | mg/l |
| Conductivity | 62.84 | µs/cm |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.019 | mg/l |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 0.75 | mg/l |
| pH | 7.60 | Unit |
| Temperature | 19 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 2.47 | mg/l |
| Total Alkalinity | 76.0 | mg/l |
| Potassium | 1.80 | mg/l |
| Sodium | 0.40 | mg/l |
| Sulphate | 39.17 | mg/l |
| Turbidity | 1.41 | NTU |
| Ammonia-N | BDL | mg/l |