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: 03/02/2022 | Sample Time: 09.00 | |
| 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 |
| Ammonia-N | BDL | mg/l |
| BOD | 1.40 | mg/l |
| Conductivity | 34.63 | µs/cm |
| Dissolved O2(DO) | 7.80 | mg/l |
| Fecal Coliform | 130 | MPN/100ml |
| Nitrate-N | 0.06 | mg/l |
| pH | 7.20 | Unit |
| Temperature(Water) | 4 | ⁰C |
| Total Coliform | 210 | MPN/100ml |
| Boron | 0.45 | mg/l |
| Calcium | 12.82 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 6.24 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 5.76 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.013 | mg/l |
| Potassium | 0.20 | mg/l |
| Sodium | 0.50 | mg/l |
| Sulphate | 0.44 | mg/l |
| Total Alkalinity | 8.00 | mg/l |
| Total Dissolved Solids(TDS) | 24.00 | mg/l |
| Total Fixed Solids(TFS) | 16.00 | mg/l |
| Total Hardness as CaCo3 | 46.00 | mg/l |
| Total Suspended Solids(TSS) | 6.00 | mg/l |
| Turbidity | 2.88 | NTU |