West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: WATER RESERVIOR AT DELO | River Basin: Tista | CPCB Station Code: 2521 |
Sample Date: 29/04/2022 | Sample Time: 13:20 Hrs | |
Human Activities: None | Weather: Sunny and clear | Water Body: Delo lake |
Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light green and Clear | Odour: None | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Dissolved O2(DO) | 7.60 | mg/l |
Fecal Coliform | 110 | MPN/100ml |
Nitrate-N | 0.56 | mg/l |
pH | 6.96 | Unit |
Total Coliform | 170 | MPN/100ml |
Boron | 7.30 | mg/l |
Calcium | 2.40 | mg/l |
Chloride | 3.91 | mg/l |
COD | 3.0 | mg/l |
Ammonia-N | BDL | mg/l |
Temperature(Water) | 21 | ⁰C |
Total Alkalinity | 16.00 | mg/l |
Nickel | BDL | mg/l |
o,p-DDT | BDL | ppb |
BOD | 0.80 | mg/l |
Magnesium | 0.97 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | BDL | mg/l |
Potassium | 1.60 | mg/l |
Sodium | 3.60 | mg/l |
Sulphate | 4.72 | mg/l |
Total Dissolved Solids(TDS) | 21.00 | mg/l |
Total Fixed Solids(TFS) | 56.00 | mg/l |
Total Hardness as CaCo3 | 10.00 | mg/l |
Total Suspended Solids(TSS) | 6.00 | mg/l |
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 |
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 |
Dieldrin | BDL | ppb |
g-BHC | BDL | ppb |
Malathion | BDL | ppb |
Methyl Parathion | BDL | ppb |
p,p-DDT | BDL | ppb |
Conductivity | 38.84 | µs/cm |
Fluoride | BDL | mg/l |
Turbidity | 1.58 | NTU |
b-BHC | BDL | ppb |