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: 11/09/2019 | Sample Time: 14:35 Hrs | |
| 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: Moderately Brown | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.80 | mg/l |
| Dissolved O2(DO) | 7.10 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 0.79 | mg/l |
| pH | 6.76 | Unit |
| Temperature | 29 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 0.018 | mg/l |
| Calcium | 7.21 | mg/l |
| Chloride | 10.76 | mg/l |
| COD | 39.89 | mg/l |
| Magnesium | 1.152 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.018 | mg/l |
| Potassium | 2.30 | mg/l |
| Sodium | 4.80 | mg/l |
| Sulphate | 24.42 | mg/l |
| Total Alkalinity | 26.0 | mg/l |
| Total Dissolved Solids(TDS) | 62.0 | mg/l |
| Total Fixed Solids(TFS) | 64.00 | mg/l |
| Total Hardness as CaCo3 | 22.00 | mg/l |
| Total Suspended Solids(TSS) | 110.0 | mg/l |
| Turbidity | 4.30 | NTU |
| Ammonia-N | 0.15 | mg/l |
| Conductivity | 67.37 | µs/cm |
| Fluoride | 0.18 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |