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: 16/08/2019 | Sample Time: 12:10 | |
Human Activities: None | Weather: Cloudy | 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: Odour free | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Turbidity | 11.90 | NTU |
Ammonia-N | 0.11 | mg/l |
BOD | 0.70 | mg/l |
Conductivity | 37.59 | µs/cm |
Dissolved O2(DO) | 7.10 | mg/l |
Fecal Coliform | 110 | MPN/100ml |
Nitrate-N | 0.55 | mg/l |
pH | 6.70 | Unit |
Temperature | 18 | ⁰C |
Total Coliform | 220 | MPN/100ml |
Boron | 0.002 | mg/l |
Calcium | 8.0 | mg/l |
Chloride | 12.72 | mg/l |
COD | 9.64 | mg/l |
Fluoride | 0.32 | mg/l |
Magnesium | 4.61 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.365 | mg/l |
Potassium | BDL | mg/l |
Sodium | BDL | mg/l |
Sulphate | 4.02 | mg/l |
Total Alkalinity | 30.0 | mg/l |
Total Dissolved Solids(TDS) | 10.00 | mg/l |
Total Fixed Solids(TFS) | 52.00 | mg/l |
Total Hardness as CaCo3 | 36.00 | mg/l |
Total Kjeldahl Nitrogen(TKN) | mg/l | |
Total Suspended Solids(TSS) | 8.00 | mg/l |