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: 16/03/2021 | Sample Time: 12:40 Hrs | |
| Human Activities: Bathing and Washing | Weather: Sunny | 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: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.13 | mg/l |
| BOD | 1.40 | mg/l |
| Conductivity | 52.54 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 2200 | MPN/100ml |
| Fecal Streptococci | 12 | MPN/100ml |
| Nitrate-N | 0.03 | mg/l |
| pH | 7.95 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Total Coliform | 8000 | MPN/100ml |
| Boron | 2.37 | mg/l |
| Calcium | 6.41 | mg/l |
| Chloride | 9.78 | mg/l |
| COD | 48.00 | mg/l |
| Fluoride | 0.11 | mg/l |
| Magnesium | 4.61 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | 0.9 | mg/l |
| Sodium | 2.4 | mg/l |
| Sulphate | 13.22 | mg/l |
| Total Alkalinity | 38.0 | mg/l |
| Total Dissolved Solids(TDS) | 36.00 | mg/l |
| Total Fixed Solids(TFS) | 90.00 | mg/l |
| Total Hardness as CaCo3 | 16.00 | mg/l |
| Total Suspended Solids(TSS) | 30.00 | mg/l |
| Turbidity | 1.71 | NTU |