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: 26/02/2020 | Sample Time: 09:15 Hrs | |
| Human Activities: None | Weather: Coudy and slight rain | 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 |
| Fecal Coliform | 70 | MPN/100ml |
| Nitrate-N | 1.13 | mg/l |
| Temperature | 4 | ⁰C |
| Total Coliform | 210 | MPN/100ml |
| Boron | 3.02 | mg/l |
| Calcium | 7.21 | mg/l |
| COD | 10.0 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 1.73 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 2.70 | mg/l |
| Sulphate | 1.05 | mg/l |
| Total Alkalinity | 16.00 | mg/l |
| Total Fixed Solids(TFS) | 70.00 | mg/l |
| Total Suspended Solids(TSS) | 20.0 | mg/l |
| Turbidity | 2.44 | NTU |
| Ammonia-N | BDL | mg/l |
| Conductivity | 18.97 | µs/cm |
| Dissolved O2(DO) | 7.40 | mg/l |
| pH | 7.67 | Unit |
| Chloride | 4.89 | mg/l |
| Phosphate-P | 0.001 | mg/l |
| Total Dissolved Solids(TDS) | 82.00 | mg/l |
| BOD | 1.20 | mg/l |
| Total Hardness as CaCo3 | 18.0 | mg/l |