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: 10/01/2020 | Sample Time: 15:10 | |
| Human Activities: Bathing,Washing,Cattle Wading and Open Defication. | 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: Moderately Green and lightTurbid | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Coliform | 14000 | MPN/100ml |
| Total Suspended Solids(TSS) | 52.00 | mg/l |
| Turbidity | 14.60 | NTU |
| Total Hardness as CaCo3 | 82.00 | mg/l |
| Ammonia-N | 0.16 | mg/l |
| Fluoride | 0.26 | mg/l |
| Calcium | 17.64 | mg/l |
| Chloride | 7.83 | mg/l |
| COD | 51.00 | mg/l |
| Magnesium | 10..94 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Boron | 4.66 | mg/l |
| Phosphate-P | 0.020 | mg/l |
| Potassium | 4.2 | mg/l |
| Sodium | BDL | mg/l |
| Sulphate | 16.33 | mg/l |
| Total Alkalinity | 76.0 | mg/l |
| Total Dissolved Solids(TDS) | 92.00 | mg/l |
| Total Fixed Solids(TFS) | 88.00 | mg/l |
| BOD | 1.60 | mg/l |
| Conductivity | 119.30 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Nitrate-N | 1.11 | mg/l |
| Fecal Coliform | 9000 | MPN/100ml |
| Temperature | 20 | ⁰C |
| pH | 6.82 | Unit |