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: 22/01/2019 | Sample Time: 13:00 | |
Human Activities: Bathing | Weather: Clear | Water Body: Coochbihar lake |
Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Moderately Turbid Brown | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Conductivity | 60.48 | µs/cm |
Dissolved O2(DO) | 7.20 | mg/l |
Fecal Coliform | 4000 | MPN/100ml |
Nitrate-N | 0.29 | mg/l |
pH | 7.30 | Unit |
Temperature | 26 | ⁰C |
Total Coliform | 22000 | MPN/100ml |
Boron | 0.014 | mg/l |
Calcium | 16.03 | mg/l |
Chloride | 18.59 | mg/l |
COD | 40.0 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 6.16 | mg/l |
Phenolpthalein Alkanity | Nil | mg/l |
Phosphate-P | 0.063 | mg/l |
Potassium | BDL | mg/l |
Sodium | 4.02 | mg/l |
Sulphate | 6.79 | mg/l |
Total Alkalinity | 36.00 | mg/l |
Total Dissolved Solids(TDS) | 74.00 | mg/l |
Total Fixed Solids(TFS) | 74.0 | mg/l |
Total Hardness as CaCo3 | 62.00 | mg/l |
Total Kjeldahl Nitrogen(TKN) | mg/l | |
Total Suspended Solids(TSS) | 46.00 | mg/l |
Turbidity | 11.80 | NTU |
Ammonia-N | 0.17 | mg/l |
BOD | 2.20 | mg/l |