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: 02/02/2022 | Sample Time: 14:15 | |
Human Activities: Fishing | Weather: Sunny | Water Body: Siltorsa |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light green and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 0.60 | mg/l |
Conductivity | 131.70 | µs/cm |
Dissolved O2(DO) | 8.00 | mg/l |
Fecal Coliform | 1100 | MPN/100ml |
Fecal Streptococci | 25 | MPN/100ml |
Nitrate-N | 0.87 | mg/l |
pH | 7.88 | Unit |
Temperature(Water) | 13 | ⁰C |
Total Coliform | 2100 | MPN/100ml |
Boron | 0.69 | mg/l |
Calcium | 6.41 | mg/l |
Chloride | 3.91 | mg/l |
COD | 27.04 | mg/l |
Fluoride | 0.14 | mg/l |
Magnesium | 4.03 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.008 | mg/l |
Potassium | 0.40 | mg/l |
Sodium | 1.00 | mg/l |
Sulphate | 0.65 | mg/l |
Total Alkalinity | 26.00 | mg/l |
Total Dissolved Solids(TDS) | 92.00 | mg/l |
Total Fixed Solids(TFS) | 42.00 | mg/l |
Total Hardness as CaCo3 | 30.00 | mg/l |
Total Suspended Solids(TSS) | 6.00 | mg/l |
Turbidity | 4.25 | NTU |