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: 24/12/2019 | Sample Time: 12:15 Hrs | |
| 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: Moderately Green and Clear. | Odour: Fishy | Visible effluent discharge: None. |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Total Suspended Solids(TSS) | 32.00 | mg/l |
| Turbidity | 1.58 | NTU |
| Ammonia-N | 0.17 | mg/l |
| BOD | 1.80 | mg/l |
| Conductivity | 51.19 | µs/cm |
| Total Coliform | 9000 | MPN/100ml |
| Boron | 0.020 | mg/l |
| Calcium | 8.82 | mg/l |
| Total Dissolved Solids(TDS) | 58.00 | mg/l |
| COD | 37.00 | mg/l |
| Fluoride | 0.18 | mg/l |
| Magnesium | 4.03 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.033 | mg/l |
| Potassium | 2.10 | mg/l |
| Chloride | 8.81 | mg/l |
| Total Alkalinity | 30.00 | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Nitrate-N | 0.08 | mg/l |
| pH | 6.80 | Unit |
| Temperature | 21 | ⁰C |
| Sodium | 1.90 | mg/l |
| Sulphate | 4.16 | mg/l |
| Total Fixed Solids(TFS) | 16.00 | mg/l |
| Total Hardness as CaCo3 | 36.0 | mg/l |
| Dissolved O2(DO) | 7.60 | mg/l |