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: 25/04/2022 | Sample Time: 13:30 | |
Human Activities: None | Weather: Sunny and Clear. | Water Body: Coochbihar lake |
Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 2.00 m |
Color & Intensity: Light green and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
BOD | 2.40 | mg/l |
Conductivity | 52.98 | µs/cm |
Dissolved O2(DO) | 7.80 | mg/l |
Fecal Coliform | 7000 | MPN/100ml |
Nitrate-N | 0.35 | mg/l |
pH | 7.90 | Unit |
Temperature(Water) | 27 | ⁰C |
Chloride | 1.95 | mg/l |
COD | 16.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 0.48 | mg/l |
Phosphate-P | 0.005 | mg/l |
Potassium | 1.50 | mg/l |
Sodium | 3.80 | mg/l |
Sulphate | 4.92 | mg/l |
Total Alkalinity | 28.00 | mg/l |
Total Dissolved Solids(TDS) | 36.00 | mg/l |
Total Fixed Solids(TFS) | 52.00 | mg/l |
Total Hardness as CaCo3 | 20.00 | mg/l |
Total Suspended Solids(TSS) | 23.00 | mg/l |
Turbidity | 3.71 | NTU |
Arsenic | BDL | mg/l |
Cadmium | BDL | mg/l |
Copper | BDL | mg/l |
Iron | 0.68 | mg/l |
Lead | BDL | mg/l |
Mercury | BDL | mg/l |
Nickel | BDL | mg/l |
Zinc | BDL | mg/l |
a-BHC | BDL | ppb |
a-Endosulphan | BDL | ppb |
Aldrin | BDL | ppb |
Anilophos | BDL | ppb |
b-Endosulphan | BDL | ppb |
Chlorpyriphos | BDL | ppb |
g-BHC | BDL | ppb |
Malathion | BDL | ppb |
Methyl Parathion | BDL | ppb |
o,p-DDT | BDL | ppb |
p,p-DDT | BDL | ppb |
Ammonia-N | 0.14 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Chromium Total | BDL | mg/l |
Dieldrin | BDL | ppb |
Total Coliform | 14000 | MPN/100ml |
Boron | 4.66 | mg/l |
Calcium | 7.20 | mg/l |