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: 19/08/2020 | Sample Time: 14:45 | |
| Human Activities: None | Weather: Sunny | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Clear and Dark Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.80 | mg/l |
| Conductivity | 50.87 | µs/cm |
| Fecal Coliform | 3000 | MPN/100ml |
| Nitrate-N | 0.93 | mg/l |
| pH | 6.74 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Boron | 0.43 | mg/l |
| Calcium | 4.81 | mg/l |
| COD | 29.00 | mg/l |
| Magnesium | 2.30 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.010 | mg/l |
| Potassium | 4.30 | mg/l |
| Sulphate | 9.05 | mg/l |
| Total Alkalinity | 32.0 | mg/l |
| Total Dissolved Solids(TDS) | 72.0 | mg/l |
| Total Hardness as CaCo3 | 20.0 | mg/l |
| Total Suspended Solids(TSS) | 58.00 | mg/l |
| Turbidity | 3.81 | NTU |
| Chloride | 1.96 | mg/l |
| Dissolved O2(DO) | 7.20 | mg/l |
| Ammonia-N | BDL | mg/l |
| Total Coliform | 9000 | MPN/100ml |
| Fluoride | BDL | mg/l |
| Sodium | 2.2 | mg/l |
| Total Fixed Solids(TFS) | 22.00 | mg/l |