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: 21/01/2021 | Sample Time: 16:10 | |
| Human Activities: None. | Weather: Cloudy and foggy | Water Body: Mechi |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Conductivity | 59.00 | µs/cm |
| Potassium | 1.0 | mg/l |
| Fecal Streptococci | 33 | MPN/100ml |
| Total Dissolved Solids(TDS) | 34.00 | mg/l |
| Ammonia-N | BDL | mg/l |
| BOD | 2.30 | mg/l |
| Dissolved O2(DO) | 6.10 | mg/l |
| Fecal Coliform | 2700 | MPN/100ml |
| Nitrate-N | 0.02 | mg/l |
| pH | 7.23 | Unit |
| Temperature(Water) | 13 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 2.03 | mg/l |
| Calcium | 2.40 | mg/l |
| COD | 46.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 1.72 | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Sodium | 2.4 | mg/l |
| Sulphate | 20.36 | mg/l |
| Total Alkalinity | 30.0 | mg/l |
| Total Fixed Solids(TFS) | 66.00 | mg/l |
| Total Hardness as CaCo3 | 12.00 | mg/l |
| Total Suspended Solids(TSS) | 18.00 | mg/l |
| Turbidity | 27.10 | NTU |
| Chloride | 1.95 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |