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: 19/07/2019 | Sample Time: 14:45 | |
| Human Activities: Bathing, Washing and Fishing. | Weather: Cloudy and Rainy | Water Body: Mechi |
| Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Muddy and Moderately Brown | Odour: Odour free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 68.00 | mg/l |
| Turbidity | 68.50 | NTU |
| Ammonia-N | BDL | mg/l |
| BOD | 0.70 | mg/l |
| Conductivity | 59.82 | µs/cm |
| Dissolved O2(DO) | 7.40 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Nitrate-N | 0.96 | mg/l |
| pH | 7.50 | Unit |
| Temperature | 23 | ⁰C |
| Total Coliform | 28000 | MPN/100ml |
| Boron | 0.009 | mg/l |
| Calcium | 10.42 | mg/l |
| Chloride | 8.81 | mg/l |
| COD | 33.27 | mg/l |
| Fluoride | 0.18 | mg/l |
| Magnesium | 1.73 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.326 | mg/l |
| Potassium | 1.60 | mg/l |
| Sodium | 3.80 | mg/l |
| Sulphate | 10.33 | mg/l |
| Total Alkalinity | 44.0 | mg/l |
| Total Dissolved Solids(TDS) | 76.0 | mg/l |
| Total Fixed Solids(TFS) | 273.00 | mg/l |
| Total Hardness as CaCo3 | 32.00 | mg/l |