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: 14/01/2021 | Sample Time: 13:30 Hrs | |
Human Activities: Fishing | Weather: Sunny and Clear | Water Body: Siltorsa |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light Green and clear | Odour: Odourless | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Total Dissolved Solids(TDS) | 68.00 | mg/l |
Total Alkalinity | 22.00 | mg/l |
pH | 7.10 | Unit |
Fecal Coliform | 1100 | MPN/100ml |
Fecal Streptococci | 14 | MPN/100ml |
Nitrate-N | 0.039 | mg/l |
Boron | 3.289 | mg/l |
Calcium | 12.02 | mg/l |
Chloride | 1.95 | mg/l |
Fluoride | 0.16 | mg/l |
COD | 42.00 | mg/l |
Magnesium | 10.94 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.007 | mg/l |
Potassium | 0.80 | mg/l |
Sodium | 2.20 | mg/l |
Sulphate | 11.78 | mg/l |
Total Fixed Solids(TFS) | 56.00 | mg/l |
Total Hardness as CaCo3 | 68.00 | mg/l |
Total Suspended Solids(TSS) | 99.0 | mg/l |
Turbidity | 4.59 | NTU |
BOD | 1.80 | mg/l |
Conductivity | 150.00 | µs/cm |
Dissolved O2(DO) | 6.50 | mg/l |
Temperature(Water) | 22 | ⁰C |
Total Coliform | 8000 | MPN/100ml |
Ammonia-N | 0.25 | mg/l |