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: 10/06/2022 | Sample Time: 12:40 | |
Human Activities: None | Weather: Cloudy and Rainy. | Water Body: Coochbihar lake |
Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light green and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 1.90 | mg/l |
Conductivity | 47.03 | µs/cm |
Dissolved O2(DO) | 7.80 | mg/l |
Fecal Coliform | 3000 | MPN/100ml |
Nitrate-N | 0.53 | mg/l |
pH | 6.90 | Unit |
Temperature(Water) | 24 | ⁰C |
Total Coliform | 5000 | MPN/100ml |
Boron | 1.99 | mg/l |
Calcium | 6.40 | mg/l |
Chloride | 1.95 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 0.97 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.011 | mg/l |
Potassium | 0.90 | mg/l |
Sodium | 4.10 | mg/l |
Sulphate | 9.23 | mg/l |
Total Alkalinity | 28.00 | mg/l |
Total Dissolved Solids(TDS) | 26.00 | mg/l |
Total Fixed Solids(TFS) | 72.00 | mg/l |
Total Hardness as CaCo3 | 20.0 | mg/l |
Total Suspended Solids(TSS) | 25.0 | mg/l |
Turbidity | 6.09 | NTU |
COD | 22.88 | mg/l |