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: 08/11/2019 | Sample Time: 15:10 hrs | |
| 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: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | BDL | mg/l |
| Sulphate | 1.15 | mg/l |
| Total Alkalinity | 48.00 | mg/l |
| Total Dissolved Solids(TDS) | 22.00 | mg/l |
| Total Fixed Solids(TFS) | 64.00 | mg/l |
| Total Hardness as CaCo3 | 68.00 | mg/l |
| Total Suspended Solids(TSS) | 8.00 | mg/l |
| Turbidity | 1.44 | NTU |
| Ammonia-N | 0.11 | mg/l |
| Conductivity | 16.99 | µs/cm |
| Dissolved O2(DO) | 7.20 | mg/l |
| Nitrate-N | 0.96 | mg/l |
| pH | 6.63 | Unit |
| Temperature | 10 | ⁰C |
| Total Coliform | 170 | MPN/100ml |
| Boron | 0.004 | mg/l |
| Calcium | 13.63 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 16.00 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 9.79 | mg/l |
| BOD | 0.80 | mg/l |
| Fecal Coliform | 90 | MPN/100ml |