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: 15/09/2021 | Sample Time: 16:30 | |
Human Activities: Bathing and Washing and Fishing. | Weather: Sunny and Clear. | Water Body: Torsa |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.50 m |
Color & Intensity: Moderately Brown and turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | 0.22 | mg/l |
BOD | 1.50 | mg/l |
Conductivity | 73.75 | µs/cm |
Dissolved O2(DO) | 7.80 | mg/l |
Fecal Coliform | 2200 | MPN/100ml |
Fecal Streptococci | 11 | MPN/100ml |
Nitrate-N | 0.07 | mg/l |
pH | 7.46 | Unit |
Temperature(Water) | 26 | ⁰C |
Total Coliform | 5000 | MPN/100ml |
Boron | 1.68 | mg/l |
Calcium | 21.64 | mg/l |
Chloride | 2.95 | mg/l |
COD | 20.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 2.30 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.002 | mg/l |
Potassium | 0.80 | mg/l |
Sodium | 0.60 | mg/l |
Sulphate | 2.36 | mg/l |
Total Alkalinity | 30.00 | mg/l |
Total Dissolved Solids(TDS) | 16.00 | mg/l |
Total Fixed Solids(TFS) | 332.00 | mg/l |
Total Hardness as CaCo3 | 62.00 | mg/l |
Total Suspended Solids(TSS) | 165.00 | mg/l |
Turbidity | 186.00 | NTU |