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: 29/07/2019 | Sample Time: 14:15 | |
| Human Activities: Bathing | 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 Turbid Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | mg/l | |
| BOD | 2.20 | mg/l |
| Conductivity | 63.79 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 0.94 | mg/l |
| pH | 6.78 | Unit |
| Temperature | 26 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 0.011 | mg/l |
| Calcium | 2.47 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 22.51 | mg/l |
| Fluoride | mg/l | |
| Magnesium | 1.96 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.122 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 1.06 | mg/l |
| Sulphate | 5.65 | mg/l |
| Total Alkalinity | 60.00 | mg/l |
| Total Dissolved Solids(TDS) | 68.00 | mg/l |
| Total Fixed Solids(TFS) | 4.00 | mg/l |
| Total Hardness as CaCo3 | 24.24 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 42.00 | mg/l |
| Turbidity | 8.82 | NTU |