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: 15/01/2019 | Sample Time: 12:45 | |
| Human Activities: None | Weather: Clear and Windy | 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 |
| Calcium | 3.21 | mg/l |
| Total Hardness as CaCo3 | 20.00 | mg/l |
| Total Suspended Solids(TSS) | 12.0 | mg/l |
| Turbidity | 1.76 | NTU |
| Ammonia-N | 0.22 | mg/l |
| BOD | 0.90 | mg/l |
| Conductivity | 21.42 | µs/cm |
| Dissolved O2(DO) | 7.90 | mg/l |
| Fecal Coliform | 90 | MPN/100ml |
| Nitrate-N | 0.33 | mg/l |
| pH | 6.74 | Unit |
| Temperature | 7 | ⁰C |
| Total Coliform | 170 | MPN/100ml |
| Sodium | 4.81 | mg/l |
| Sulphate | 3.88 | mg/l |
| Boron | 0.013 | mg/l |
| Chloride | 19.57 | mg/l |
| COD | 15.00 | mg/l |
| Fluoride | 0.32 | mg/l |
| Magnesium | 1.36 | mg/l |
| Phenolpthalein Alkanity | Nil | mg/l |
| Phosphate-P | 0.014 | mg/l |
| Potassium | BDL | mg/l |
| Total Alkalinity | 64.00 | mg/l |
| Total Dissolved Solids(TDS) | 24.0 | mg/l |
| Total Fixed Solids(TFS) | 136.0 | mg/l |