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: 21/12/2021 | Sample Time: 09:15 Hrs | |
| Human Activities: None | 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 Turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 0.80 | mg/l |
| Conductivity | 95.05 | µs/cm |
| Dissolved O2(DO) | 8.10 | mg/l |
| Fecal Coliform | 1100 | MPN/100ml |
| Fecal Streptococci | 33 | MPN/100ml |
| Nitrate-N | 0.04 | mg/l |
| pH | 7.49 | Unit |
| Temperature(Water) | 16 | ⁰C |
| Total Coliform | 3300 | MPN/100ml |
| Boron | 2.50 | mg/l |
| Calcium | 19.23 | mg/l |
| COD | 9.60 | mg/l |
| Fluoride | 0.11 | mg/l |
| Magnesium | 2.88 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.004 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 0.3 | mg/l |
| Sulphate | 6.69 | mg/l |
| Total Alkalinity | 36.00 | mg/l |
| Total Dissolved Solids(TDS) | 57.00 | mg/l |
| Total Fixed Solids(TFS) | 72.00 | mg/l |
| Total Hardness as CaCo3 | 58.00 | mg/l |
| Turbidity | 0.82 | NTU |
| Chloride | 2.93 | mg/l |
| Total Suspended Solids(TSS) | 10.00 | mg/l |