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: 19/03/2019 | Sample Time: 14:45 Hrs | |
| Human Activities: Bathing | Weather: Clear | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Green and slightly turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 2.60 | mg/l |
| Conductivity | 76.10 | µs/cm |
| Dissolved O2(DO) | 8.30 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Nitrate-N | 0.16 | mg/l |
| pH | 7.80 | Unit |
| Temperature | 29 | ⁰C |
| Boron | 0.003 | mg/l |
| Calcium | 12.00 | mg/l |
| Chloride | 10.76 | mg/l |
| COD | 43.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 1.15 | mg/l |
| Phosphate-P | 0.004 | mg/l |
| Potassium | 0.90 | mg/l |
| Sodium | 1.60 | mg/l |
| Sulphate | 1.25 | mg/l |
| Total Alkalinity | 38.00 | mg/l |
| Total Dissolved Solids(TDS) | 76.00 | mg/l |
| Total Fixed Solids(TFS) | 56.0 | mg/l |
| Total Hardness as CaCo3 | 34.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Turbidity | 26.2 | NTU |
| Total Coliform | 14000 | MPN/100ml |
| Phenolpthalein Alkanity | Nil | mg/l |
| Total Suspended Solids(TSS) | 66.00 | mg/l |
| Ammonia-N | 0.12 | mg/l |