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 |