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: 21/12/2021 | Sample Time: 13:05 Hrs | |
| 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: light Green and Turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 2.20 | mg/l |
| Conductivity | 39.45 | µs/cm |
| Dissolved O2(DO) | 7.50 | mg/l |
| Fecal Coliform | 400 | MPN/100ml |
| Nitrate-N | 0.08 | mg/l |
| pH | 7.51 | Unit |
| Temperature(Water) | 21 | ⁰C |
| Total Coliform | 1300 | MPN/100ml |
| Boron | 1.68 | mg/l |
| Calcium | 10.42 | mg/l |
| Chloride | 6.84 | mg/l |
| COD | 13.47 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 1.152 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.005 | mg/l |
| Potassium | 1.40 | mg/l |
| Sodium | 2.80 | mg/l |
| Sulphate | 0.21 | mg/l |
| Total Alkalinity | 40.00 | mg/l |
| Total Dissolved Solids(TDS) | 21.00 | mg/l |
| Total Fixed Solids(TFS) | 16.00 | mg/l |
| Total Hardness as CaCo3 | 26.00 | mg/l |
| Total Suspended Solids(TSS) | 34.00 | mg/l |
| Turbidity | 8.07 | NTU |