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: 13/08/2019 | Sample Time: 14:05 | |
| Human Activities: Bridge construction | Weather: Sunny and Clear | Water Body: Mechi |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark Green and Clear | Odour: Odour free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Chloride | 10.76 | mg/l |
| COD | 31.75 | mg/l |
| Fluoride | 0.14 | mg/l |
| Total Alkalinity | 50.0 | mg/l |
| Total Dissolved Solids(TDS) | 48.00 | mg/l |
| Total Fixed Solids(TFS) | 240.00 | mg/l |
| Total Hardness as CaCo3 | 104.0 | mg/l |
| Conductivity | 64.76 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 1.09 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 70.00 | mg/l |
| pH | 6.81 | Unit |
| Turbidity | 107.00 | NTU |
| Magnesium | 12.09 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.011 | mg/l |
| Potassium | 1.40 | mg/l |
| Sodium | 3.70 | mg/l |
| Sulphate | 13.22 | mg/l |
| Temperature | 28 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 0.011 | mg/l |
| Calcium | 24.85 | mg/l |
| Ammonia-N | BDL | mg/l |
| BOD | 1.50 | mg/l |