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: 27/04/2021 | Sample Time: 13:20 | |
Human Activities: Washing and Bathing | 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: Light Green | Odour: Fishy | Visible effluent discharge: Nil |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | 0.12 | mg/l |
BOD | 1.40 | mg/l |
Conductivity | 38.10 | µs/cm |
Dissolved O2(DO) | 8.10 | mg/l |
Fecal Coliform | 3000 | MPN/100ml |
Nitrate-N | 0.09 | mg/l |
pH | 6.74 | Unit |
Temperature(Water) | 29 | ⁰C |
Total Coliform | 9000 | MPN/100ml |
Boron | 0.55 | mg/l |
Calcium | 8.82 | mg/l |
Chloride | 16.63 | mg/l |
COD | 28.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 0.58 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.006 | mg/l |
Potassium | 1.40 | mg/l |
Sodium | 2.60 | mg/l |
Sulphate | 5.89 | mg/l |
Total Alkalinity | 44.00 | mg/l |
Total Dissolved Solids(TDS) | 26.00 | mg/l |
Total Fixed Solids(TFS) | 10.00 | mg/l |
Total Hardness as CaCo3 | 22.00 | mg/l |
Total Suspended Solids(TSS) | 24.00 | mg/l |
Turbidity | 1.23 | NTU |
Arsenic | BDL | mg/l |
Cadmium | BDL | mg/l |
Chromium Total | BDL | mg/l |
Copper | BDL | mg/l |
Iron | BDL | mg/l |
Lead | BDL | mg/l |
Mercury | BDL | mg/l |
Nickel | BDL | mg/l |
Zinc | BDL | mg/l |
a-BHC | ppb | |
a-Endosulphan | ppb | |
Aldrin | ppb | |
Anilophos | ppb | |
b-Endosulphan | ppb | |
Chlorpyriphos | ppb | |
Dieldrin | ppb | |
g-BHC | ppb | |
Malathion | ppb | |
Methyl Parathion | ppb | |
o,p-DDT | ppb | |
p,p-DDT | ppb |