West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: River Jaldhaka at Dhupguri | River Basin: Tista | CPCB Station Code: 4717 |
Sample Date: 20/01/2022 | Sample Time: 09:45 | |
Human Activities: None | Weather: Cloudy. | Water Body: Jaldhaka |
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 | 1.10 | mg/l |
Conductivity | 111.90 | µs/cm |
Dissolved O2(DO) | 7.10 | mg/l |
Fecal Coliform | 9000 | MPN/100ml |
Fecal Streptococci | 32.00 | MPN/100ml |
Nitrate-N | 0.03 | mg/l |
pH | 7.16 | Unit |
Temperature(Water) | 14 | ⁰C |
Total Coliform | 28000 | MPN/100ml |
Boron | 1.77 | mg/l |
Calcium | 20.16 | mg/l |
Chloride | 4.89 | mg/l |
COD | 20.00 | mg/l |
Fluoride | 0.14 | mg/l |
Magnesium | 17.63 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.001 | mg/l |
Potassium | 1.50 | mg/l |
Sodium | 1.60 | mg/l |
Sulphate | 8.51 | mg/l |
Total Alkalinity | 62.00 | mg/l |
Total Dissolved Solids(TDS) | 67.00 | mg/l |
Total Fixed Solids(TFS) | 24.00 | mg/l |
Total Hardness as CaCo3 | 114.00 | mg/l |
Total Suspended Solids(TSS) | 6.00 | mg/l |
Turbidity | 2.69 | NTU |