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: 23/02/2022 | Sample Time: 14:05 | |
| Human Activities: None | Weather: Cloudy. | 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: Odour Free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 0.70 | mg/l |
| Conductivity | 21.29 | µs/cm |
| Dissolved O2(DO) | 8.50 | mg/l |
| Fecal Coliform | 170 | MPN/100ml |
| Nitrate-N | 0.52 | mg/l |
| pH | 7.25 | Unit |
| Temperature(Water) | 11 | ⁰C |
| Total Coliform | 210 | MPN/100ml |
| Boron | 1.18 | mg/l |
| Calcium | 4.00 | mg/l |
| Chloride | 3.91 | mg/l |
| COD | 4.16 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 1.72 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.005 | mg/l |
| Potassium | 0.20 | mg/l |
| Sodium | 0.80 | mg/l |
| Sulphate | 0.22 | mg/l |
| Total Alkalinity | 18.00 | mg/l |
| Total Dissolved Solids(TDS) | 12.00 | mg/l |
| Total Fixed Solids(TFS) | 64.00 | mg/l |
| Total Hardness as CaCo3 | 16.00 | mg/l |
| Total Suspended Solids(TSS) | 5.00 | mg/l |
| Turbidity | 1.05 | NTU |