West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: MAHANANDA AT SILIGURI | River Basin: Mahananda | CPCB Station Code: 1946 |
| Sample Date: 19/06/2019 | Sample Time: 15:30 | |
| Human Activities: Bathing, Washing and Fishing. | Weather: Sunny and Clear | Water Body: Mahananda at Siliguri |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark Green | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.50 | mg/l |
| Dissolved O2(DO) | 7.20 | mg/l |
| Conductivity | 119.80 | µs/cm |
| Nitrate-N | 0.32 | mg/l |
| Fecal Coliform | 8000 | MPN/100ml |
| Total Coliform | 40000 | MPN/100ml |
| pH | 7.91 | Unit |
| Chloride | 19.56 | mg/l |
| COD | 16.30 | mg/l |
| Fluoride | 0.26 | mg/l |
| Phosphate-P | 0.294 | mg/l |
| Temperature | 30 | ⁰C |
| Magnesium | 12.09 | mg/l |
| Total Hardness as CaCo3 | 78.00 | mg/l |
| Total Suspended Solids(TSS) | 36.00 | mg/l |
| Turbidity | 5.34 | NTU |
| Phenolpthalein Alkanity | NIL | mg/l |
| Potassium | 4.40 | mg/l |
| Sodium | 9.30 | mg/l |
| Boron | 0.018 | mg/l |
| Calcium | 14.43 | mg/l |
| Sulphate | 13.65 | mg/l |
| Total Alkalinity | 84.00 | mg/l |
| Total Dissolved Solids(TDS) | 142.00 | mg/l |
| Total Fixed Solids(TFS) | 97.00 | mg/l |
| Ammonia-N | BDL | mg/l |