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: 17/05/2019 | Sample Time: 15:00 Hrs | |
| Human Activities: Bathing and Washing ,Cattle wading. | 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 | Odour: Fishy | Visible effluent discharge: moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.24 | mg/l |
| BOD | 2.30 | mg/l |
| Conductivity | 167.00 | µs/cm |
| Dissolved O2(DO) | 5.20 | mg/l |
| Fecal Coliform | 13000 | MPN/100ml |
| Nitrate-N | 0.10 | mg/l |
| pH | 7.22 | Unit |
| Temperature | 24 | ⁰C |
| Total Coliform | 50000 | MPN/100ml |
| Boron | 0.001 | mg/l |
| Calcium | 23.25 | mg/l |
| Chloride | 12.72 | mg/l |
| COD | 14.00 | mg/l |
| Fluoride | 0.30 | mg/l |
| Magnesium | 6.34 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.004 | mg/l |
| Potassium | 4.80 | mg/l |
| Sodium | 2.80 | mg/l |
| Sulphate | 17.05 | mg/l |
| Total Alkalinity | 80.00 | mg/l |
| Total Dissolved Solids(TDS) | 112.00 | mg/l |
| Total Fixed Solids(TFS) | 8.0 | mg/l |
| Total Hardness as CaCo3 | 80.00 | mg/l |
| Total Suspended Solids(TSS) | 62.00 | mg/l |
| Turbidity | 7.78 | NTU |