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: 24/09/2019 | Sample Time: 14:30 Hrs | |
| 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: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.18 | mg/l |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 110 | MPN/100ml |
| Nitrate-N | 0.74 | mg/l |
| pH | 7.10 | Unit |
| Total Coliform | 340 | MPN/100ml |
| Boron | 0.004 | mg/l |
| Calcium | 3.21 | mg/l |
| Chloride | 4.14 | mg/l |
| COD | 7.39 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 1.68 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.009 | mg/l |
| Potassium | 0.70 | mg/l |
| Sodium | 7.40 | mg/l |
| Sulphate | 6.74 | mg/l |
| Total Dissolved Solids(TDS) | 20.0 | mg/l |
| Total Fixed Solids(TFS) | 44.00 | mg/l |
| Total Hardness as CaCo3 | 20.0 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 36.00 | mg/l |
| Temperature | 21 | ⁰C |
| BOD | 1.40 | mg/l |
| Conductivity | 16.20 | µs/cm |
| Turbidity | 2.91 | NTU |
| Total Alkalinity | 12.00 | mg/l |