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: 19/02/2020 | Sample Time: 14:30 Hrs | |
| Human Activities: None | Weather: Clear and Sunny | 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 |
| Fecal Coliform | 230 | MPN/100ml |
| Nitrate-N | 0.49 | mg/l |
| pH | 7.84 | Unit |
| Temperature | 12 | ⁰C |
| Total Coliform | 1100 | MPN/100ml |
| Boron | 12.67 | mg/l |
| Calcium | 4.80 | mg/l |
| COD | 3.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 1.72 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 2.90 | mg/l |
| Sulphate | 1.63 | mg/l |
| Total Alkalinity | 28.00 | mg/l |
| Total Dissolved Solids(TDS) | 72.00 | mg/l |
| Total Hardness as CaCo3 | 18.00 | mg/l |
| Total Suspended Solids(TSS) | 26.00 | mg/l |
| Turbidity | 1.23 | NTU |
| Conductivity | 20.71 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Total Fixed Solids(TFS) | 18.00 | mg/l |
| Ammonia-N | 0.19 | mg/l |
| Chloride | 1.95 | mg/l |
| BOD | 1.20 | mg/l |