West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: River Siltorsa at Hasimara | River Basin: Tista | CPCB Station Code: 4718 |
Sample Date: 25/04/2022 | Sample Time: 11:15 | |
Human Activities: None | Weather: Cloudy | Water Body: Siltorsa |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light Green and turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Conductivity | 140.80 | µs/cm |
Dissolved O2(DO) | 6.90 | mg/l |
Fecal Coliform | 5000 | MPN/100ml |
Fecal Streptococci | 26 | MPN/100ml |
Nitrate-N | 0.49 | mg/l |
pH | 6.24 | Unit |
Temperature(Water) | 24 | ⁰C |
Total Coliform | 9000 | MPN/100ml |
Boron | 3.96 | mg/l |
Calcium | 23.20 | mg/l |
Chloride | 1.95 | mg/l |
COD | 12.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 3.40 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.004 | mg/l |
Potassium | 4.10 | mg/l |
Sodium | 4.90 | mg/l |
Sulphate | 11.01 | mg/l |
Total Alkalinity | 74.00 | mg/l |
Total Dissolved Solids(TDS) | 84.00 | mg/l |
Total Fixed Solids(TFS) | 130.00 | mg/l |
Total Hardness as CaCo3 | 72.00 | mg/l |
Total Suspended Solids(TSS) | 91.00 | mg/l |
Turbidity | 6.55 | NTU |
Arsenic | BDL | mg/l |
Cadmium | BDL | mg/l |
Chromium Total | BDL | mg/l |
Copper | BDL | mg/l |
Iron | 0.30 | 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 |
Dieldrin | 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 | BDL | mg/l |
BOD | 0.80 | mg/l |