West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: River Torsa at Hasimara | River Basin: GANGA | CPCB Station Code: 4724 |
Sample Date: 29/04/2021 | Sample Time: 09:20 | |
Human Activities: None | Weather: Sunny and Clear. | Water Body: Torsa |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light Brown and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 0.80 | mg/l |
Conductivity | 76.19 | µs/cm |
Dissolved O2(DO) | 7.20 | mg/l |
Fecal Streptococci | 21 | MPN/100ml |
Nitrate-N | 0.42 | mg/l |
pH | 7.07 | Unit |
Temperature(Water) | 29 | ⁰C |
Total Coliform | 11000 | MPN/100ml |
Boron | 0.80 | mg/l |
Calcium | 15.23 | mg/l |
Chloride | 9.78 | mg/l |
COD | 28.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 8.64 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.002 | mg/l |
Potassium | 0.90 | mg/l |
Sodium | 1.70 | mg/l |
Sulphate | 4.84 | mg/l |
Total Alkalinity | 50.00 | mg/l |
Total Dissolved Solids(TDS) | 26.00 | mg/l |
Total Fixed Solids(TFS) | 116.00 | mg/l |
Total Hardness as CaCo3 | 68.00 | mg/l |
Total Suspended Solids(TSS) | 24.00 | mg/l |
Turbidity | 41.90 | 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 |
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 | |
Fecal Coliform | 2600 | MPN/100ml |