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: 18/07/2022 | Sample Time: 12:55 | |
| 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 Brown and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.16 | mg/l |
| BOD | 1.20 | mg/l |
| Conductivity | 46.75 | µs/cm |
| Dissolved O2(DO) | 6.60 | mg/l |
| Fecal Coliform | 2300 | MPN/100ml |
| Nitrate-N | 0.13 | mg/l |
| pH | 7.88 | Unit |
| Temperature(Water) | 29 | ⁰C |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 1.44 | mg/l |
| Calcium | 4.00 | mg/l |
| Chloride | 1.95 | mg/l |
| COD | 30.00 | mg/l |
| Fluoride | 0.11 | mg/l |
| Magnesium | 1.94 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.08 | mg/l |
| Potassium | 0.60 | mg/l |
| Sodium | 1.70 | mg/l |
| Sulphate | 7.84 | mg/l |
| Total Alkalinity | 24.00 | mg/l |
| Total Dissolved Solids(TDS) | 26.00 | mg/l |
| Total Fixed Solids(TFS) | 82.00 | mg/l |
| Total Hardness as CaCo3 | 18.00 | mg/l |
| Total Suspended Solids(TSS) | 5.00 | mg/l |
| Turbidity | 5.48 | NTU |