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: 25/11/2020 | Sample Time: 11:00 | |
| Human Activities: Fishing | Weather: Sunny and Hot. | Water Body: Jaldhaka |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Fecal Streptococci | 4 | MPN/100ml |
| Temperature(Water) | 28 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Total Hardness as CaCo3 | 34.00 | mg/l |
| Conductivity | 56.09 | µs/cm |
| Dissolved O2(DO) | 6.60 | mg/l |
| COD | 98.00 | mg/l |
| Boron | 1.55 | mg/l |
| Fluoride | 0.12 | mg/l |
| Magnesium | 2.30 | mg/l |
| Potassium | 1.80 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Total Alkalinity | 24.00 | mg/l |
| Total Dissolved Solids(TDS) | 112.00 | mg/l |
| Total Fixed Solids(TFS) | 10.00 | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Calcium | 8.82 | mg/l |
| Chloride | 12.72 | mg/l |
| Sodium | 3.30 | mg/l |
| Sulphate | 13.29 | mg/l |
| Ammonia-N | BDL | mg/l |
| Nitrate-N | 0.001 | mg/l |
| pH | 7.40 | Unit |
| Fecal Coliform | 2200 | MPN/100ml |
| Turbidity | 3.46 | NTU |
| BOD | 2.60 | mg/l |
| Total Suspended Solids(TSS) | 94.00 | mg/l |