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: 23/09/2020 | Sample Time: 12:30 Hrs | |
| Human Activities: None | Weather: Rainy | Water Body: Mechi |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 0.00 m |
| Color & Intensity: Light Brown and Muddy | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Temperature(Water) | 27 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Dissolved O2(DO) | 7.40 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Boron | 3.09 | mg/l |
| Calcium | 4.00 | mg/l |
| Chloride | 2.94 | mg/l |
| Total Alkalinity | 30.00 | mg/l |
| Nitrate-N | 0.96 | mg/l |
| pH | 8.01 | Unit |
| COD | 40.00 | mg/l |
| Fluoride | 0.26 | mg/l |
| Total Fixed Solids(TFS) | 30.00 | mg/l |
| Total Hardness as CaCo3 | 34.00 | mg/l |
| Total Suspended Solids(TSS) | 110.00 | mg/l |
| Turbidity | 0.93 | NTU |
| Ammonia-N | 0.13 | mg/l |
| BOD | 1.70 | mg/l |
| Conductivity | 59.97 | µs/cm |
| Magnesium | 6.92 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.009 | mg/l |
| Potassium | 1.90 | mg/l |
| Sodium | 0.60 | mg/l |
| Sulphate | 12.42 | mg/l |
| Total Dissolved Solids(TDS) | 124.00 | mg/l |