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: 14/08/2019 | Sample Time: 15:20 | |
| Human Activities: None | Weather: Cloudy and Rainy | Water Body: Jaldhaka |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown and Muddy | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.80 | mg/l |
| Conductivity | 39.26 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 7000 | MPN/100ml |
| Nitrate-N | 0.67 | mg/l |
| pH | 6.75 | Unit |
| Temperature | 28 | ⁰C |
| Total Coliform | 35000 | MPN/100ml |
| Boron | 0.024 | mg/l |
| Calcium | 13.62 | mg/l |
| Chloride | 13.69 | mg/l |
| COD | 39.29 | mg/l |
| Fluoride | 0.18 | mg/l |
| Magnesium | 5.18 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.123 | mg/l |
| Potassium | 2.20 | mg/l |
| Sodium | 5.40 | mg/l |
| Sulphate | 37.01 | mg/l |
| Total Alkalinity | 70.0 | mg/l |
| Total Dissolved Solids(TDS) | 380.00 | mg/l |
| Total Fixed Solids(TFS) | 120.00 | mg/l |
| Total Hardness as CaCo3 | 44.0 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 710.00 | mg/l |
| Turbidity | 27.00 | NTU |
| Ammonia-N | 0.23 | mg/l |