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: 17/03/2022 | Sample Time: 09:45 | |
Human Activities: None | Weather: Sunny and Clear. | 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: None | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 1.40 | mg/l |
Conductivity | 36.32 | µs/cm |
Dissolved O2(DO) | 7.40 | mg/l |
Fecal Coliform | 170 | MPN/100ml |
Nitrate-N | 0.13 | mg/l |
pH | 7.20 | Unit |
Temperature(Water) | 15 | ⁰C |
Total Coliform | 340 | MPN/100ml |
Boron | BDL | mg/l |
Calcium | 5.60 | mg/l |
Chloride | 1.95 | mg/l |
COD | 9.20 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 2.43 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.006 | mg/l |
Potassium | 0.20 | mg/l |
Sodium | 0.60 | mg/l |
Sulphate | 1.63 | mg/l |
Total Alkalinity | 76.00 | mg/l |
Total Dissolved Solids(TDS) | 18.00 | mg/l |
Total Fixed Solids(TFS) | 60.00 | mg/l |
Total Hardness as CaCo3 | 24.00 | mg/l |
Total Suspended Solids(TSS) | 12.00 | mg/l |
Turbidity | 0.22 | NTU |