West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: Jorepokhari lake at Sukhiapokhari | River Basin: GANGA | CPCB Station Code: 4729 |
| Sample Date: 29/09/2021 | Sample Time: 15:10 | |
| Human Activities: None | Weather: Sunny and Rainy. | Water Body: Lake |
| Frequency Of Monitoring: Monthly | Use Based Class: A | 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 |
| Total Alkalinity | 20.00 | mg/l |
| Total Dissolved Solids(TDS) | 8.00 | mg/l |
| Total Fixed Solids(TFS) | 36.00 | mg/l |
| Total Hardness as CaCo3 | 24.00 | mg/l |
| Total Suspended Solids(TSS) | 6.00 | mg/l |
| Turbidity | 2.65 | NTU |
| Conductivity | 38.84 | µs/cm |
| Phenolpthalein Alkanity | NIL | mg/l |
| Ammonia-N | BDL | mg/l |
| BOD | 1.60 | mg/l |
| Dissolved O2(DO) | 7.50 | mg/l |
| Fecal Coliform | 70 | MPN/100ml |
| Nitrate-N | 0.06 | mg/l |
| pH | 7.81 | Unit |
| Temperature(Water) | 18 | ⁰C |
| Total Coliform | 140 | MPN/100ml |
| Boron | 2.39 | mg/l |
| Calcium | 5.61 | mg/l |
| Chloride | 4.89 | mg/l |
| COD | 8.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 2.88 | mg/l |
| Phosphate-P | BDL | mg/l |
| Potassium | BDL | mg/l |
| Sodium | BDL | mg/l |
| Sulphate | 1.93 | mg/l |