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: 20/07/2020 | Sample Time: 13:50 | |
| Human Activities: None | 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: Brown and Muddy | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Magnesium | 4.032 | mg/l |
| Total Hardness as CaCo3 | 36.00 | mg/l |
| pH | 7.20 | Unit |
| Nitrate-N | 1.68 | mg/l |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 2.81 | mg/l |
| Calcium | 8.82 | mg/l |
| Chloride | 12.72 | mg/l |
| COD | 54.00 | mg/l |
| Fluoride | 0.26 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.233 | mg/l |
| Potassium | 2.60 | mg/l |
| Sodium | 9.20 | mg/l |
| Sulphate | 19.12 | mg/l |
| Total Dissolved Solids(TDS) | 98.00 | mg/l |
| Total Fixed Solids(TFS) | 104.00 | mg/l |
| Total Suspended Solids(TSS) | 52.00 | mg/l |
| Turbidity | 1.06 | NTU |
| BOD | 1.80 | mg/l |
| Conductivity | 112.20 | µs/cm |
| Ammonia-N | BDL | mg/l |
| Temperature(Water) | 28 | ⁰C |
| Dissolved O2(DO) | 7.10 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Total Alkalinity | 74.00 | mg/l |