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: 30/05/2022 | Sample Time: 15:25 | |
| Human Activities: None | Weather: Sunny and 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 |
| Ammonia-N | BDL | mg/l |
| BOD | 0.80 | mg/l |
| Conductivity | 33.51 | µs/cm |
| Dissolved O2(DO) | 7.10 | mg/l |
| Fecal Coliform | 170 | MPN/100ml |
| Nitrate-N | 1.17 | mg/l |
| pH | 7.45 | Unit |
| Temperature(Water) | 26 | ⁰C |
| Total Coliform | 210 | MPN/100ml |
| Boron | 3.98 | mg/l |
| Calcium | 4.00 | mg/l |
| Chloride | 1.95 | mg/l |
| COD | 14.72 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 0.48 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.002 | mg/l |
| Potassium | 0.80 | mg/l |
| Sodium | 2.20 | mg/l |
| Sulphate | 10.75 | mg/l |
| Total Alkalinity | 20.00 | mg/l |
| Total Dissolved Solids(TDS) | 20.00 | mg/l |
| Total Fixed Solids(TFS) | 20.00 | mg/l |
| Total Hardness as CaCo3 | 12.00 | mg/l |
| Total Suspended Solids(TSS) | 3.00 | mg/l |
| Turbidity | 4.41 | NTU |