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: 27/12/2019 | Sample Time: 12:10 Hrs | |
| Human Activities: Bathing and washing. | 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 and moderately brown. | Odour: Fishy | Visible effluent discharge: None. |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.16 | mg/l |
| Calcium | 14.43 | mg/l |
| BOD | 1.80 | mg/l |
| Conductivity | 58.26 | µs/cm |
| Dissolved O2(DO) | 6.80 | mg/l |
| Fluoride | 0.12 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Fecal Coliform | 2300 | MPN/100ml |
| Magnesium | 2.30 | mg/l |
| Turbidity | 1.60 | NTU |
| Total Dissolved Solids(TDS) | 84.00 | mg/l |
| Total Fixed Solids(TFS) | 26.00 | mg/l |
| Total Hardness as CaCo3 | 44.00 | mg/l |
| Total Suspended Solids(TSS) | 60.00 | mg/l |
| Nitrate-N | 0.87 | mg/l |
| pH | 7.55 | Unit |
| Temperature | 19 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 0.011 | mg/l |
| Phosphate-P | 0.036 | mg/l |
| Potassium | 2.00 | mg/l |
| Chloride | 12.72 | mg/l |
| COD | 39.00 | mg/l |
| Sodium | 0.50 | mg/l |
| Sulphate | 42.21 | mg/l |
| Total Alkalinity | 66.00 | mg/l |