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: 09/10/2020 | Sample Time: 16:50 | |
| Human Activities: Bathing and Washing and 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: Moderately Brown | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Dissolved Solids(TDS) | 110.00 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.009 | mg/l |
| Potassium | 4.20 | mg/l |
| COD | 42.00 | mg/l |
| Fluoride | BDL | mg/l |
| Sodium | 8.60 | mg/l |
| Calcium | 17.64 | mg/l |
| Chloride | 7.83 | mg/l |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 1.02 | mg/l |
| Dissolved O2(DO) | 6.80 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| BOD | 1.80 | mg/l |
| Ammonia-N | BDL | mg/l |
| Conductivity | 90.18 | µs/cm |
| Nitrate-N | 0.86 | mg/l |
| pH | 6.55 | Unit |
| Temperature(Water) | 28 | ⁰C |
| Magnesium | 10.94 | mg/l |
| Sulphate | 45.05 | mg/l |
| Total Fixed Solids(TFS) | 1200.00 | mg/l |
| Total Suspended Solids(TSS) | 68.00 | mg/l |
| Turbidity | 688.00 | NTU |
| Total Alkalinity | 76.00 | mg/l |
| Total Hardness as CaCo3 | 82.00 | mg/l |