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: 22/11/2019 | Sample Time: 14:20 | |
| Human Activities: Bathing and Washing | 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 and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.40 | mg/l |
| Nitrate-N | 1.20 | mg/l |
| pH | 7.68 | Unit |
| Temperature | 26 | ⁰C |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 0.003 | mg/l |
| Total Alkalinity | 44.00 | mg/l |
| Total Dissolved Solids(TDS) | 38.00 | mg/l |
| Total Fixed Solids(TFS) | 44.00 | mg/l |
| Total Hardness as CaCo3 | 28.00 | mg/l |
| Calcium | 8.02 | mg/l |
| Chloride | 10.76 | mg/l |
| COD | 32.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 2.30 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.003 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | BDL | mg/l |
| Sulphate | 5.96 | mg/l |
| Total Suspended Solids(TSS) | 46.00 | mg/l |
| Turbidity | 7.49 | NTU |
| Ammonia-N | BDL | mg/l |
| Conductivity | 41.05 | µs/cm |
| Dissolved O2(DO) | 6.80 | mg/l |
| Fecal Coliform | 1700 | MPN/100ml |