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: 21/01/2021 | Sample Time: 08:25 | |
| Human Activities: None | 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: Moderately green | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Temperature(Water) | 20 | ⁰C |
| Potassium | 3.80 | mg/l |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Streptococci | 110 | MPN/100ml |
| Ammonia-N | 2.52 | mg/l |
| BOD | 1.60 | mg/l |
| Conductivity | 140 | µs/cm |
| Phosphate-P | 0.004 | mg/l |
| Fecal Coliform | 9000 | MPN/100ml |
| Nitrate-N | 0.229 | mg/l |
| pH | 6.80 | Unit |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 0.87 | mg/l |
| Calcium | 4.8 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 48.00 | mg/l |
| Fluoride | 0.17 | mg/l |
| Magnesium | 5.18 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Sodium | 7.80 | mg/l |
| Sulphate | 12.86 | mg/l |
| Total Alkalinity | 32.00 | mg/l |
| Total Dissolved Solids(TDS) | 62 | mg/l |
| Total Fixed Solids(TFS) | 42.00 | mg/l |
| Total Hardness as CaCo3 | 30.00 | mg/l |
| Total Suspended Solids(TSS) | 52.00 | mg/l |
| Turbidity | NTU | |