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: 13/05/2019 | Sample Time: 12:30 Hrs | |
| Human Activities: None | Weather: Clear | 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 |
| Ammonia-N | 0.14 | mg/l |
| Total Suspended Solids(TSS) | 10.00 | mg/l |
| Turbidity | 2.08 | NTU |
| Sodium | 0.70 | mg/l |
| Sulphate | 2.21 | mg/l |
| Total Alkalinity | 22.00 | mg/l |
| Total Dissolved Solids(TDS) | 8.00 | mg/l |
| Total Fixed Dissoloved Solids(TFDS) | mg/l | |
| Total Fixed Solids(TFS) | 6.00 | mg/l |
| Total Hardness as CaCo3 | 28.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| BOD | 1.20 | mg/l |
| Conductivity | 35.08 | µs/cm |
| Magnesium | 5.76 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.065 | mg/l |
| Potassium | BDL | mg/l |
| Nitrate-N | 0.09 | mg/l |
| Fecal Coliform | 120 | MPN/100ml |
| pH | 7.58 | Unit |
| Temperature | 10 | ⁰C |
| Total Coliform | 270 | MPN/100ml |
| Boron | 0.004 | mg/l |
| Calcium | 3.21 | mg/l |
| Chloride | 12.72 | mg/l |
| COD | 5.63 | mg/l |
| Fluoride | BDL | mg/l |
| Dissolved O2(DO) | 7.80 | mg/l |