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: 10/06/2022 | Sample Time: 11:50 | |
Human Activities: Fishing | Weather: Cloudy and Rainy. | Water Body: Siltorsa |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Moderately Brown and turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 1.10 | mg/l |
Conductivity | 133.05 | µs/cm |
Dissolved O2(DO) | 7.50 | mg/l |
Fecal Coliform | 2600 | MPN/100ml |
Fecal Streptococci | 25 | MPN/100ml |
Nitrate-N | 0.47 | mg/l |
pH | 6.93 | Unit |
Temperature(Water) | 23 | ⁰C |
Total Coliform | 14000 | MPN/100ml |
Boron | 4.96 | mg/l |
Calcium | 19.20 | mg/l |
Chloride | 0.97 | mg/l |
COD | 5.20 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 4.86 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.014 | mg/l |
Potassium | 3.50 | mg/l |
Sodium | 4.00 | mg/l |
Sulphate | 11.39 | mg/l |
Total Alkalinity | 64.00 | mg/l |
Total Dissolved Solids(TDS) | 64.00 | mg/l |
Total Fixed Solids(TFS) | 520.00 | mg/l |
Total Hardness as CaCo3 | 68.00 | mg/l |
Total Suspended Solids(TSS) | 654.00 | mg/l |
Turbidity | 257.00 | NTU |