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: 20/05/2020 | Sample Time: 14:00 Hrs | |
| Human Activities: Washing,Bathing. | Weather: Sunny | 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: Others | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Nitrate-N | mg/l | |
| pH | 7.40 | Unit |
| COD | 28.00 | mg/l |
| Phosphate-P | 0.004 | mg/l |
| Temperature(Water) | 24 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 3.65 | mg/l |
| Calcium | 16.83 | mg/l |
| Potassium | 3.80 | mg/l |
| Sodium | 6.40 | mg/l |
| Chloride | 22.50 | mg/l |
| Magnesium | 10.94 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Sulphate | 14.87 | mg/l |
| Total Alkalinity | 76.0 | mg/l |
| Total Dissolved Solids(TDS) | 114.00 | mg/l |
| Total Fixed Solids(TFS) | mg/l | |
| Fluoride | mg/l | |
| Total Hardness as CaCo3 | 80.00 | mg/l |
| Total Suspended Solids(TSS) | 64.00 | mg/l |
| Turbidity | NTU | |
| Conductivity | 110.0 | µs/cm |
| Dissolved O2(DO) | 6.50 | mg/l |
| Fecal Coliform | 2100 | MPN/100ml |
| Ammonia-N | mg/l | |
| BOD | 2.30 | mg/l |