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: 18/06/2021 | Sample Time: 15:10 | |
| Human Activities: None | Weather: Rainy | Water Body: Mahananda at Siliguri |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.18 | mg/l |
| BOD | 2.30 | mg/l |
| Conductivity | 112.90 | µs/cm |
| Dissolved O2(DO) | 7.60 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Fecal Streptococci | 63 | MPN/100ml |
| Nitrate-N | 0.31 | mg/l |
| pH | 7.29 | Unit |
| Temperature(Water) | 25 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 0.60 | mg/l |
| Calcium | 18.44 | mg/l |
| Chloride | 17.61 | mg/l |
| COD | 22.00 | mg/l |
| Fluoride | 0.14 | mg/l |
| Magnesium | 5.18 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.006 | mg/l |
| Potassium | 2.80 | mg/l |
| Sodium | 8.20 | mg/l |
| Sulphate | 29.47 | mg/l |
| Total Alkalinity | 54.00 | mg/l |
| Total Dissolved Solids(TDS) | 64.00 | mg/l |
| Total Fixed Solids(TFS) | 318.00 | mg/l |
| Total Hardness as CaCo3 | 64.00 | mg/l |
| Total Suspended Solids(TSS) | 48.00 | mg/l |
| Turbidity | 151.00 | NTU |