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: 23/05/2022 | Sample Time: 10.08 | |
| 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: Moderately Brown and turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.14 | mg/l |
| BOD | 1.70 | mg/l |
| Conductivity | 152.10 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 2300 | MPN/100ml |
| Fecal Streptococci | 41 | MPN/100ml |
| Nitrate-N | 0.26 | mg/l |
| pH | 7.59 | Unit |
| Temperature(Water) | 26 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 4.09 | mg/l |
| Calcium | 20.80 | mg/l |
| Chloride | 1.95 | mg/l |
| COD | 16.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 5.83 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.004 | mg/l |
| Potassium | 5.30 | mg/l |
| Sodium | 3.70 | mg/l |
| Sulphate | 10.86 | mg/l |
| Total Alkalinity | 72.00 | mg/l |
| Total Dissolved Solids(TDS) | 91.00 | mg/l |
| Total Fixed Solids(TFS) | 604.00 | mg/l |
| Total Hardness as CaCo3 | 76.00 | mg/l |
| Total Suspended Solids(TSS) | 609.00 | mg/l |
| Turbidity | 321.00 | NTU |