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: 20/01/2021 | Sample Time: 14:20 | |
| Human Activities: None. | Weather: Cloudy. | Water Body: Lake |
| Frequency Of Monitoring: Monthly | Use Based Class: A | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Clear Light Green | Odour: None | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Temperature(Water) | 6 | ⁰C |
| Total Alkalinity | 70.00 | mg/l |
| Total Dissolved Solids(TDS) | 24.00 | mg/l |
| pH | 7.20 | Unit |
| Total Coliform | 170 | MPN/100ml |
| Boron | 0.24 | mg/l |
| Calcium | 4.0 | mg/l |
| Chloride | 0.97 | mg/l |
| COD | 8.0 | mg/l |
| Fluoride | 0.13 | mg/l |
| Magnesium | 6.91 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | BDL | mg/l |
| Sodium | 1.40 | mg/l |
| Sulphate | 9.64 | mg/l |
| Total Fixed Solids(TFS) | 12.00 | mg/l |
| Total Hardness as CaCo3 | 34.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 24.00 | mg/l |
| Turbidity | 2.56 | NTU |
| Conductivity | 35.20 | µs/cm |
| Ammonia-N | 0.22 | mg/l |
| BOD | 1.40 | mg/l |
| Dissolved O2(DO) | 7.80 | mg/l |
| Fecal Coliform | 80 | MPN/100ml |
| Nitrate-N | 0.002 | mg/l |