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: 23/07/2021 | Sample Time: 10:15 | |
| Human Activities: None | Weather: Sunny and humid | Water Body: Jaldhaka |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately green and clear | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Calcium | 14.43 | mg/l |
| Chloride | 3.91 | mg/l |
| COD | 19.00 | mg/l |
| Fluoride | 0.14 | mg/l |
| Magnesium | 2.30 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.005 | mg/l |
| Potassium | 0.60 | mg/l |
| Sodium | 1.20 | mg/l |
| Sulphate | 4.84 | mg/l |
| Total Alkalinity | 84.00 | mg/l |
| Total Dissolved Solids(TDS) | 32.00 | mg/l |
| Total Fixed Solids(TFS) | 28.00 | mg/l |
| Total Hardness as CaCo3 | 44.00 | mg/l |
| Total Suspended Solids(TSS) | 12.00 | mg/l |
| Turbidity | 3.00 | NTU |
| Ammonia-N | 0.14 | mg/l |
| BOD | 1.80 | mg/l |
| Conductivity | 65.10 | µs/cm |
| Dissolved O2(DO) | 7.40 | mg/l |
| Fecal Coliform | 2100 | MPN/100ml |
| Fecal Streptococci | 21 | MPN/100ml |
| Nitrate-N | 0.32 | mg/l |
| pH | 7.38 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 1.29 | mg/l |