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: 20/07/2020 | Sample Time: 11:40 | |
| 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: Brown and Muddy | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Alkalinity | 28.00 | mg/l |
| Total Dissolved Solids(TDS) | 68.00 | mg/l |
| Total Fixed Solids(TFS) | 316.00 | mg/l |
| Total Suspended Solids(TSS) | 92.00 | mg/l |
| Turbidity | 6.12 | NTU |
| Nitrate-N | 7.46 | mg/l |
| Temperature(Water) | 27 | ⁰C |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 1.06 | mg/l |
| Calcium | 8.82 | mg/l |
| Chloride | 14.68 | mg/l |
| COD | 24.00 | mg/l |
| Magnesium | 4.032 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Potassium | 1.20 | mg/l |
| Sodium | 3.20 | mg/l |
| Sulphate | 12.53 | mg/l |
| pH | 7.40 | Unit |
| Phosphate-P | 0.238 | mg/l |
| Total Hardness as CaCo3 | 36.00 | mg/l |
| Ammonia-N | 0.14 | mg/l |
| BOD | 1.60 | mg/l |
| Conductivity | 46.27 | µs/cm |
| Dissolved O2(DO) | 7.80 | mg/l |
| Fluoride | 0.19 | mg/l |
| Fecal Coliform | 2300 | MPN/100ml |