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: 23/11/2020 | Sample Time: 13:15 | |
| 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 |
| Fluoride | 0.12 | mg/l |
| Conductivity | 64.92 | µs/cm |
| BOD | 2.30 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Fecal Streptococci | 140 | MPN/100ml |
| Nitrate-N | 0.015 | mg/l |
| pH | 7.23 | Unit |
| Temperature(Water) | 28 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 2.18 | mg/l |
| Calcium | 9.62 | mg/l |
| Chloride | 4.90 | mg/l |
| COD | 28.00 | mg/l |
| Magnesium | 1.73 | mg/l |
| Ammonia-N | BDL | mg/l |
| Dissolved O2(DO) | 6.10 | mg/l |
| Total Dissolved Solids(TDS) | 45.0 | mg/l |
| Total Fixed Solids(TFS) | 10.00 | mg/l |
| Total Hardness as CaCo3 | 30.00 | mg/l |
| Total Suspended Solids(TSS) | 42.00 | mg/l |
| Turbidity | 2.62 | NTU |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.024 | mg/l |
| Potassium | 1.80 | mg/l |
| Sodium | 3.20 | mg/l |
| Sulphate | 15.43 | mg/l |
| Total Alkalinity | 38.00 | mg/l |