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: 13/10/2019 | Sample Time: 13:15 | |
| Human Activities: Bathing, 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: Moderate Green | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.20 | mg/l |
| Conductivity | 119.80 | µs/cm |
| Dissolved O2(DO) | 6.80 | mg/l |
| Fecal Coliform | 6000 | MPN/100ml |
| Nitrate-N | 2.08 | mg/l |
| Ammonia-N | BDL | mg/l |
| Chloride | 16.58 | mg/l |
| COD | 36.00 | mg/l |
| Total Fixed Solids(TFS) | 128.00 | mg/l |
| Fluoride | 0.15 | mg/l |
| Magnesium | 2.88 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Calcium | 12.02 | mg/l |
| Phosphate-P | 0.016 | mg/l |
| Potassium | 7.00 | mg/l |
| Sodium | 0.40 | mg/l |
| Sulphate | 15.18 | mg/l |
| Total Alkalinity | 80.00 | mg/l |
| Total Dissolved Solids(TDS) | 102.00 | mg/l |
| Total Suspended Solids(TSS) | 72.00 | mg/l |
| Turbidity | 28.10 | NTU |
| pH | 7.20 | Unit |
| Temperature | 29 | ⁰C |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 0.025 | mg/l |
| Total Hardness as CaCo3 | 40.00 | mg/l |