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: 20/05/2020 | Sample Time: 12:15 Hrs | |
| Human Activities: None | Weather: Sunny | Water Body: Mechi |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Brown and Clear. | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | mg/l | |
| BOD | 1.40 | mg/l |
| Conductivity | 72.43 | µs/cm |
| Dissolved O2(DO) | 6.80 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Nitrate-N | mg/l | |
| pH | 7.74 | Unit |
| Temperature(Water) | 24 | ⁰C |
| Total Coliform | 14000 | MPN/100ml |
| Calcium | 6.41 | mg/l |
| Chloride | 7.83 | mg/l |
| Boron | 4.82 | mg/l |
| COD | 38.00 | mg/l |
| Fluoride | mg/l | |
| Magnesium | 5.76 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.005 | mg/l |
| Potassium | 0.90 | mg/l |
| Sodium | 3.90 | mg/l |
| Sulphate | 10.99 | mg/l |
| Total Alkalinity | 36.00 | mg/l |
| Total Dissolved Solids(TDS) | 74.00 | mg/l |
| Total Fixed Solids(TFS) | mg/l | |
| Total Hardness as CaCo3 | 36.00 | mg/l |
| Total Suspended Solids(TSS) | 64.00 | mg/l |
| Turbidity | NTU | |