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: 14/01/2021 | Sample Time: 12:30 Hrs | |
| Human Activities: Fishing | 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: Odourless | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Boron | 3.04 | mg/l |
| Total Alkalinity | 14.00 | mg/l |
| Fecal Coliform | 2200 | MPN/100ml |
| Ammonia-N | 0.22 | mg/l |
| BOD | 2.00 | mg/l |
| Conductivity | 74.84 | µs/cm |
| Dissolved O2(DO) | 7.40 | mg/l |
| Total Dissolved Solids(TDS) | 52.00 | mg/l |
| Total Fixed Solids(TFS) | 48.00 | mg/l |
| Total Hardness as CaCo3 | 20.00 | mg/l |
| Fecal Streptococci | 39 | MPN/100ml |
| Nitrate-N | 0.010 | mg/l |
| pH | 7.40 | Unit |
| Temperature(Water) | 21 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Calcium | 5.61 | mg/l |
| Chloride | 0.97 | mg/l |
| COD | 32.00 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 1.72 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.006 | mg/l |
| Potassium | 1.8 | mg/l |
| Sodium | 3.3 | mg/l |
| Sulphate | 13.92 | mg/l |
| Total Suspended Solids(TSS) | 62.00 | mg/l |
| Turbidity | 5.41 | NTU |