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: 14/01/2019 | Sample Time: 11:50 | |
| Human Activities: Bathing,Fishing,cattle wading,Swimming,Washing Clothes and Utensils | Weather: Clear | Water Body: Mahananda at Siliguri |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately Turbid and Brown | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| pH | 6.08 | Unit |
| Temperature | 21 | ⁰C |
| Total Coliform | 21000 | MPN/100ml |
| Boron | 0.014 | mg/l |
| Calcium | 11.22 | mg/l |
| Chloride | 12.72 | mg/l |
| Potassium | 4.00 | mg/l |
| Sodium | 13.22 | mg/l |
| Sulphate | 4.85 | mg/l |
| Total Alkalinity | 72.00 | mg/l |
| Total Dissolved Solids(TDS) | 198.0 | mg/l |
| Total Fixed Solids(TFS) | 32.0 | mg/l |
| Total Hardness as CaCo3 | 52.00 | mg/l |
| Total Suspended Solids(TSS) | 30.0 | mg/l |
| Turbidity | 0.65 | NTU |
| Ammonia-N | 0.37 | mg/l |
| BOD | 2.40 | mg/l |
| Conductivity | 158.20 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 9000 | MPN/100ml |
| Nitrate-N | 0.60 | mg/l |
| COD | 41.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 6.72 | mg/l |
| Phenolpthalein Alkanity | Nil | mg/l |
| Phosphate-P | 0.241 | mg/l |