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: 04/03/2020 | Sample Time: 11:00 Hrs | |
| Human Activities: Bathing,Washing | Weather: Sunny | Water Body: Mahananda at Siliguri |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green and Muddy | Odour: nauseating | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.43 | mg/l |
| pH | 7.26 | Unit |
| Phosphate-P | 0.003 | mg/l |
| Potassium | 2.80 | mg/l |
| Sodium | 9.60 | mg/l |
| Sulphate | 16.54 | mg/l |
| Total Alkalinity | 84.00 | mg/l |
| Total Dissolved Solids(TDS) | 110.00 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Temperature | 24 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 20.61 | mg/l |
| Conductivity | 110.20 | µs/cm |
| Dissolved O2(DO) | 7.10 | mg/l |
| Fluoride | 0.34 | mg/l |
| Magnesium | 2.88 | mg/l |
| Fecal Coliform | 1400 | MPN/100ml |
| Nitrate-N | 2.09 | mg/l |
| Calcium | 20.04 | mg/l |
| Chloride | 9.78 | mg/l |
| COD | 24.00 | mg/l |
| BOD | 2.10 | mg/l |
| Total Fixed Solids(TFS) | 226.00 | mg/l |
| Total Suspended Solids(TSS) | 98.00 | mg/l |
| Total Hardness as CaCo3 | 60.00 | mg/l |
| Turbidity | 29.30 | NTU |