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: 17/03/2020 | Sample Time: 14:30 Hrs | |
| Human Activities: Washing and Construction of Bridge. | 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 Slightly Turbid | Odour: None | Visible effluent discharge: None. |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.80 | mg/l |
| Conductivity | 62.91 | µs/cm |
| Dissolved O2(DO) | 8.60 | mg/l |
| Fecal Coliform | 2100 | MPN/100ml |
| Nitrate-N | mg/l | |
| pH | 7.80 | Unit |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 2.81 | mg/l |
| Calcium | 6.41 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 48.00 | mg/l |
| Fluoride | mg/l | |
| Magnesium | 4.61 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.002 | mg/l |
| Potassium | 1.20 | mg/l |
| Sodium | 2.80 | mg/l |
| Sulphate | 4.66 | mg/l |
| Total Alkalinity | 36.00 | mg/l |
| Total Dissolved Solids(TDS) | 82.00 | mg/l |
| Total Fixed Solids(TFS) | mg/l | |
| Total Hardness as CaCo3 | 32.00 | mg/l |
| Total Suspended Solids(TSS) | 24.00 | mg/l |
| Turbidity | NTU | |
| Temperature | 28 | ⁰C |
| Ammonia-N | mg/l | |