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: 08/10/2020 | Sample Time: 14:50 | |
| 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: Dark Green | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.12 | mg/l |
| Nitrate-N | 0.77 | mg/l |
| pH | 7.23 | Unit |
| BOD | 1.40 | mg/l |
| Calcium | 6.41 | mg/l |
| Chloride | 19.57 | mg/l |
| COD | 30.00 | mg/l |
| Dissolved O2(DO) | 6.80 | mg/l |
| Fecal Coliform | 2200 | MPN/100ml |
| Temperature(Water) | 28 | ⁰C |
| Total Coliform | 7000 | MPN/100ml |
| Fluoride | BDL | mg/l |
| Magnesium | 2.30 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.014 | mg/l |
| Potassium | 0.40 | mg/l |
| Sodium | 1.20 | mg/l |
| Sulphate | 5.47 | mg/l |
| Total Alkalinity | 36.00 | mg/l |
| Total Dissolved Solids(TDS) | 82.00 | mg/l |
| Total Fixed Solids(TFS) | 18.00 | mg/l |
| Total Hardness as CaCo3 | 24.00 | mg/l |
| Total Suspended Solids(TSS) | 36.00 | mg/l |
| Turbidity | 8.20 | NTU |
| Conductivity | 46.13 | µs/cm |
| Boron | 0.34 | mg/l |