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: 23/09/2020 | Sample Time: 14:30 Hrs | |
| Human Activities: None | Weather: Rainy | Water Body: Mahananda at Siliguri |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately Brown and Muddy | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.008 | mg/l |
| Potassium | 3.20 | mg/l |
| Sodium | 9.15 | mg/l |
| Sulphate | 81.68 | mg/l |
| Total Alkalinity | 32.00 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Ammonia-N | 0.15 | mg/l |
| Fluoride | 0.29 | mg/l |
| Magnesium | 5.18 | mg/l |
| Total Coliform | 13000 | MPN/100ml |
| Turbidity | 431.00 | NTU |
| BOD | 2.40 | mg/l |
| Boron | 1.98 | mg/l |
| Calcium | 4.81 | mg/l |
| Chloride | 2.94 | mg/l |
| Total Dissolved Solids(TDS) | 60.00 | mg/l |
| Total Fixed Solids(TFS) | 300.00 | mg/l |
| Conductivity | 43.67 | µs/cm |
| Total Hardness as CaCo3 | 30.00 | mg/l |
| Total Suspended Solids(TSS) | 95.00 | mg/l |
| Dissolved O2(DO) | 7.00 | mg/l |
| Nitrate-N | 2.20 | mg/l |
| pH | 6.55 | Unit |
| Temperature(Water) | 27 | ⁰C |
| COD | 58.00 | mg/l |