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: 16/02/2022 | Sample Time: 16:30 | |
| Human Activities: None | Weather: Sunny and Clear. | Water Body: Mechi |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green and clear | Odour: Fishy. | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.15 | mg/l |
| BOD | 2.80 | mg/l |
| Conductivity | 97.69 | µs/cm |
| Dissolved O2(DO) | 8.80 | mg/l |
| Fecal Coliform | 1300 | MPN/100ml |
| Fecal Streptococci | 48 | MPN/100ml |
| Nitrate-N | 0.17 | mg/l |
| pH | 6.27 | Unit |
| Temperature(Water) | 18 | ⁰C |
| Total Coliform | 2300 | MPN/100ml |
| Boron | 0.70 | mg/l |
| Calcium | 11.22 | mg/l |
| Chloride | 11.74 | mg/l |
| COD | 11.44 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 4.60 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | 1.60 | mg/l |
| Sodium | 3.80 | mg/l |
| Sulphate | 14.95 | mg/l |
| Total Alkalinity | 34.00 | mg/l |
| Total Dissolved Solids(TDS) | 64.00 | mg/l |
| Total Fixed Solids(TFS) | 58.00 | mg/l |
| Total Hardness as CaCo3 | 44.00 | mg/l |
| Total Suspended Solids(TSS) | 6.00 | mg/l |
| Turbidity | 1.19 | NTU |