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: 04/03/2022 | Sample Time: 11:50 | |
| Human Activities: None | Weather: Sunny and Clear. | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately green and turbid | Odour: Fishy. | Visible effluent discharge: Nil |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.13 | mg/l |
| BOD | 2.20 | mg/l |
| Conductivity | 42.31 | µs/cm |
| Dissolved O2(DO) | 8.90 | mg/l |
| Fecal Coliform | 13000 | MPN/100ml |
| Nitrate-N | 0.95 | mg/l |
| pH | 7.93 | Unit |
| Temperature(Water) | 24 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 1.72 | mg/l |
| Calcium | 7.20 | mg/l |
| Chloride | 5.87 | mg/l |
| COD | 48.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 0.97 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 0.80 | mg/l |
| Sulphate | 5.01 | mg/l |
| Total Alkalinity | 40.00 | mg/l |
| Total Dissolved Solids(TDS) | 29.00 | mg/l |
| Total Fixed Solids(TFS) | 78.00 | mg/l |
| Total Hardness as CaCo3 | 22.00 | mg/l |
| Total Suspended Solids(TSS) | 42.00 | mg/l |
| Turbidity | 7.93 | NTU |