West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: WATER RESERVIOR AT DELO | River Basin: Tista | CPCB Station Code: 2521 |
| Sample Date: 14/01/2020 | Sample Time: 14:45 | |
| Human Activities: None | Weather: Clear | Water Body: Delo lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green and clear | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 0.60 | mg/l |
| Ammonia-N | 0.16 | mg/l |
| Conductivity | 19.40 | µs/cm |
| Dissolved O2(DO) | 7.60 | mg/l |
| Fecal Coliform | 80.00 | MPN/100ml |
| Nitrate-N | 1.14 | mg/l |
| pH | 7.20 | Unit |
| Total Coliform | 170.00 | MPN/100ml |
| Boron | 0.66 | mg/l |
| Calcium | 14.43 | mg/l |
| Chloride | 10.69 | mg/l |
| Total Fixed Solids(TFS) | 16.00 | mg/l |
| Total Hardness as CaCo3 | 50.0 | mg/l |
| Total Suspended Solids(TSS) | 12.00 | mg/l |
| Turbidity | 1.72 | NTU |
| Temperature | 9 | ⁰C |
| Sodium | BDL | mg/l |
| COD | 19.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 3.46 | mg/l |
| Phosphate-P | 0.009 | mg/l |
| Potassium | 0.60 | mg/l |
| Sulphate | 2.00 | mg/l |
| Total Alkalinity | 42.00 | mg/l |
| Total Dissolved Solids(TDS) | 24.00 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |