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: 01/03/2019 | Sample Time: 11;35 Hrs | |
| Human Activities: Bathing,washing,Cleaning | Weather: 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 moderately turbid | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Coliform | 34000 | MPN/100ml |
| Boron | 0.009 | mg/l |
| Calcium | 28.80 | mg/l |
| Chloride | 15.65 | mg/l |
| COD | 39.00 | mg/l |
| Fluoride | 0.25 | mg/l |
| Magnesium | 5.76 | mg/l |
| Phenolpthalein Alkanity | Nil | mg/l |
| Phosphate-P | 0.002 | mg/l |
| Ammonia-N | 0.41 | mg/l |
| BOD | 2.80 | mg/l |
| Conductivity | 149.80 | µs/cm |
| Dissolved O2(DO) | 5.40 | mg/l |
| Fecal Coliform | 14000 | MPN/100ml |
| Nitrate-N | 0.32 | mg/l |
| pH | 6.80 | Unit |
| Temperature | 18 | ⁰C |
| Potassium | 5.40 | mg/l |
| Sulphate | 10.52 | mg/l |
| Total Alkalinity | 24.00 | mg/l |
| Total Fixed Solids(TFS) | 136.0 | mg/l |
| Total Hardness as CaCo3 | 92.00 | mg/l |
| Total Suspended Solids(TSS) | 58.00 | mg/l |
| Turbidity | 18.8 | NTU |
| Sodium | 48.8 | mg/l |
| Total Dissolved Solids(TDS) | 189.00 | mg/l |