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: 27/11/2019 | Sample Time: 10:20 Hrs | |
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 Green and Clear | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 1.50 | mg/l |
Conductivity | 66.05 | µs/cm |
Dissolved O2(DO) | 7.40 | mg/l |
Fecal Coliform | 3400 | MPN/100ml |
Nitrate-N | 0.41 | mg/l |
pH | 7.68 | Unit |
Temperature | 25 | ⁰C |
Total Coliform | 13000 | MPN/100ml |
Boron | 0.025 | mg/l |
Calcium | 6.41 | mg/l |
Chloride | 9.78 | mg/l |
COD | 50.00 | mg/l |
Fluoride | 0.15 | mg/l |
Magnesium | 4.61 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.049 | mg/l |
Potassium | BDL | mg/l |
Sodium | BDL | mg/l |
Sulphate | 13.94 | mg/l |
Total Alkalinity | 80.00 | mg/l |
Total Dissolved Solids(TDS) | 42.00 | mg/l |
Total Fixed Solids(TFS) | 62.00 | mg/l |
Total Hardness as CaCo3 | 84.00 | mg/l |
Total Suspended Solids(TSS) | 28.00 | mg/l |
Turbidity | 2.01 | NTU |