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: 29/07/2019 | Sample Time: 8:00 | |
| 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: Muddy and Moderately Brown | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 0.87 | mg/l |
| pH | 6.68 | Unit |
| Temperature | 27 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 0.220 | mg/l |
| Calcium | 27.25 | mg/l |
| Chloride | 4.44 | mg/l |
| COD | 32.76 | mg/l |
| Fluoride | 0.12 | mg/l |
| Magnesium | 7.49 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.378 | mg/l |
| Potassium | 3.20 | mg/l |
| Sodium | 6.80 | mg/l |
| Sulphate | 22.93 | mg/l |
| Total Alkalinity | 29.00 | mg/l |
| Total Dissolved Solids(TDS) | 280.00 | mg/l |
| Total Fixed Solids(TFS) | 124.00 | mg/l |
| Total Hardness as CaCo3 | 94.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 820.00 | mg/l |
| Turbidity | 19.40 | NTU |
| Ammonia-N | 0.22 | mg/l |
| BOD | 0.80 | mg/l |
| Conductivity | 30.82 | µs/cm |