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: 25/11/2020 | Sample Time: 13:40 | |
| Human Activities: None | Weather: Sunny and Hot. | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark Green and clear. | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Sodium | 0.90 | mg/l |
| Sulphate | 5.57 | mg/l |
| Total Alkalinity | 48.00 | mg/l |
| Calcium | 19.24 | mg/l |
| Chloride | 14.67 | mg/l |
| COD | 30.00 | mg/l |
| Total Dissolved Solids(TDS) | 64.00 | mg/l |
| Total Fixed Solids(TFS) | 12.00 | mg/l |
| Total Hardness as CaCo3 | 90.0 | mg/l |
| Ammonia-N | BDL | mg/l |
| BOD | 1.20 | mg/l |
| Conductivity | 39.11 | µs/cm |
| Fecal Coliform | 14000 | MPN/100ml |
| Nitrate-N | 0.011 | mg/l |
| pH | 6.90 | Unit |
| Temperature(Water) | 25 | ⁰C |
| Total Coliform | 14000 | MPN/100ml |
| Boron | 0.44 | mg/l |
| Dissolved O2(DO) | 6.40 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 4.032 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.009 | mg/l |
| Potassium | 0.20 | mg/l |
| Turbidity | 17.90 | NTU |
| Total Suspended Solids(TSS) | 30.00 | mg/l |