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: 23/08/2021 | Sample Time: 09:40 | |
| 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: Clear Light Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.17 | mg/l |
| BOD | 1.60 | mg/l |
| Conductivity | 58.17 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Fecal Streptococci | 20 | MPN/100ml |
| Nitrate-N | 0.22 | mg/l |
| pH | 7.60 | Unit |
| Temperature(Water) | 28 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 0.89 | mg/l |
| Calcium | 8.01 | mg/l |
| Chloride | 3.91 | mg/l |
| COD | 14.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 4.03 | mg/l |
| Phenolpthalein Alkanity | nil | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Potassium | 1.70 | mg/l |
| Sodium | 0.40 | mg/l |
| Sulphate | 5.81 | mg/l |
| Total Alkalinity | 72 | mg/l |
| Total Dissolved Solids(TDS) | 22.00 | mg/l |
| Total Fixed Solids(TFS) | 102.00 | mg/l |
| Total Hardness as CaCo3 | 20.00 | mg/l |
| Total Suspended Solids(TSS) | 16.00 | mg/l |
| Turbidity | 54.70 | NTU |