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: 19/12/2019 | Sample Time: 12:25 Hrs | |
| Human Activities: Bathing and washing,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: Light Brown and moderately turbid | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Potassium | 4.00 | mg/l |
| Sodium | 7.10 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Nitrate-N | 0.62 | mg/l |
| Temperature | 22 | ⁰C |
| Phosphate-P | 0.016 | mg/l |
| Total Suspended Solids(TSS) | 60.00 | mg/l |
| Total Hardness as CaCo3 | 78.00 | mg/l |
| Turbidity | 21.30 | NTU |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 0.021 | mg/l |
| Dissolved O2(DO) | 6.80 | mg/l |
| pH | 6.87 | Unit |
| Sulphate | 15.32 | mg/l |
| Total Alkalinity | 84.00 | mg/l |
| Total Dissolved Solids(TDS) | 88.00 | mg/l |
| Total Fixed Solids(TFS) | 146.00 | mg/l |
| Ammonia-N | 0.32 | mg/l |
| BOD | 1.40 | mg/l |
| Conductivity | 122.80 | µs/cm |
| Fecal Coliform | 7000 | MPN/100ml |
| Calcium | 22.45 | mg/l |
| Chloride | 11.74 | mg/l |
| COD | 53.00 | mg/l |
| Fluoride | 0.25 | mg/l |
| Magnesium | 6.34 | mg/l |