West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: River Mechi at Nehaljote | River Basin: Mahananda | CPCB Station Code: 4727 |
| Sample Date: 18/06/2021 | Sample Time: 12:20 | |
| Human Activities: Fishing | Weather: Sunny | Water Body: Mechi |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Boron | 2.06 | mg/l |
| Total Dissolved Solids(TDS) | 36.00 | mg/l |
| Total Fixed Solids(TFS) | 52.00 | mg/l |
| Total Hardness as CaCo3 | 30.00 | mg/l |
| Total Suspended Solids(TSS) | 28.00 | mg/l |
| Turbidity | 2.72 | NTU |
| Ammonia-N | 0.18 | mg/l |
| BOD | 1.10 | mg/l |
| Conductivity | 72.10 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Fecal Streptococci | 24 | MPN/100ml |
| Nitrate-N | 0.19 | mg/l |
| pH | 6.87 | Unit |
| Temperature(Water) | 25 | ⁰C |
| Potassium | 0.4 | mg/l |
| Sodium | 2.0 | mg/l |
| Total Coliform | 14000 | MPN/100ml |
| Calcium | 8.82 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 56.0 | mg/l |
| Fluoride | 0.15 | mg/l |
| Magnesium | 2.30 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.005 | mg/l |
| Sulphate | 18.53 | mg/l |
| Total Alkalinity | 58.00 | mg/l |