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: 07/10/2020 | Sample Time: 14:30 | |
| Human Activities: None | Weather: Sunny and hot. | Water Body: Mechi |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Nitrate-N | 0.31 | mg/l |
| pH | 6.80 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 3.58 | mg/l |
| Chloride | 1.96 | mg/l |
| COD | 24.00 | mg/l |
| Fluoride | 0.15 | mg/l |
| Magnesium | 7.49 | mg/l |
| Phosphate-P | 0.015 | mg/l |
| Potassium | 0.60 | mg/l |
| Sodium | 2.20 | mg/l |
| Ammonia-N | 0.12 | mg/l |
| Conductivity | 52.17 | µs/cm |
| BOD | 1.20 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Total Fixed Solids(TFS) | 18.00 | mg/l |
| Total Hardness as CaCo3 | 42.00 | mg/l |
| Total Suspended Solids(TSS) | 40.00 | mg/l |
| Turbidity | 2.08 | NTU |
| Dissolved O2(DO) | 6.90 | mg/l |
| Calcium | 6.41 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Sulphate | 17.89 | mg/l |
| Total Alkalinity | 38.00 | mg/l |
| Total Dissolved Solids(TDS) | 64.00 | mg/l |