West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: KOCHBIHAR LAKE (SAGAR DIGHI) | River Basin: Raidak_Torsa | CPCB Station Code: 2519 |
| Sample Date: 21/09/2020 | Sample Time: 14:00 | |
| Human Activities: None | Weather: Cloudy,high wind and Humid. | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Clear Green | Odour: Odour Free | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Fecal Coliform | 2100 | MPN/100ml |
| Nitrate-N | 1.75 | mg/l |
| pH | 6.94 | Unit |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 0.29 | mg/l |
| Ammonia-N | BDL | mg/l |
| BOD | 2.60 | mg/l |
| Conductivity | 43.15 | µs/cm |
| Calcium | 6.41 | mg/l |
| Chloride | 1.95 | mg/l |
| Temperature(Water) | 24 | ⁰C |
| Dissolved O2(DO) | 6.50 | mg/l |
| Total Hardness as CaCo3 | 30.00 | mg/l |
| Total Suspended Solids(TSS) | 45.00 | mg/l |
| Turbidity | 14.40 | NTU |
| COD | 26.00 | mg/l |
| Fluoride | 0.14 | mg/l |
| Total Alkalinity | 30.00 | mg/l |
| Total Dissolved Solids(TDS) | 58.00 | mg/l |
| Total Fixed Solids(TFS) | 16.00 | mg/l |
| Sulphate | 2.10 | mg/l |
| Phosphate-P | 0.014 | mg/l |
| Potassium | 1.05 | mg/l |
| Sodium | 2.05 | mg/l |
| Magnesium | 4.04 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |