West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: Water Reservior St. Helens School | River Basin: GANGA | CPCB Station Code: 4725 |
Sample Date: 14/06/2022 | Sample Time: 10:45 | |
Human Activities: None | Weather: Cloudy and foggy | Water Body: Lake |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light Green and Clear | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | 0.28 | mg/l |
BOD | 1.20 | mg/l |
Conductivity | 30.16 | µs/cm |
Dissolved O2(DO) | 8.20 | mg/l |
Fecal Coliform | 90 | MPN/100ml |
Nitrate-N | 0.14 | mg/l |
pH | 7.98 | Unit |
Temperature(Water) | 14 | ⁰C |
Total Coliform | 140 | MPN/100ml |
Boron | 3.81 | mg/l |
Calcium | 4.00 | mg/l |
Chloride | 0.97 | mg/l |
COD | 24.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 0.48 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.004 | mg/l |
Potassium | 0.70 | mg/l |
Sodium | 4.30 | mg/l |
Sulphate | 6.21 | mg/l |
Total Alkalinity | 18.00 | mg/l |
Total Dissolved Solids(TDS) | 16.00 | mg/l |
Total Fixed Solids(TFS) | 34.00 | mg/l |
Total Hardness as CaCo3 | 12.00 | mg/l |
Total Suspended Solids(TSS) | 19.00 | mg/l |
Turbidity | 6.66 | NTU |