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: 30/09/2019 | Sample Time: 14:20 Hrs | |
| Human Activities: None | Weather: Cloudy | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark Green and Moderately Turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 3000 | MPN/100ml |
| Nitrate-N | 0.55 | mg/l |
| pH | 7.58 | Unit |
| Temperature | 27 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 0.005 | mg/l |
| Chloride | 5.52 | mg/l |
| COD | 21.48 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 0.576 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.027 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 2.20 | mg/l |
| Sulphate | 6.51 | mg/l |
| Total Alkalinity | 28.00 | mg/l |
| Total Dissolved Solids(TDS) | 68.00 | mg/l |
| Total Fixed Solids(TFS) | 24.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 54.0 | mg/l |
| Turbidity | 8.45 | NTU |
| Ammonia-N | 0.13 | mg/l |
| BOD | 2.20 | mg/l |
| Conductivity | 54.00 | µs/cm |
| Calcium | 8.82 | mg/l |
| Total Hardness as CaCo3 | 24.00 | mg/l |