West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: MIRIKH LAKE | River Basin: Tista | CPCB Station Code: 2520 |
| Sample Date: 29/09/2021 | Sample Time: 16:20 | |
| Human Activities: Horse riding | Weather: Sunny and Clear. | Water Body: Mirikh lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.50 m |
| Color & Intensity: Dark Green and turbid | Odour: Septic. | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | BDL | mg/l |
| BOD | 2.00 | mg/l |
| Conductivity | 67.41 | µs/cm |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 5000 | MPN/100ml |
| Nitrate-N | 0.18 | mg/l |
| pH | 6.63 | Unit |
| Temperature(Water) | 22 | ⁰C |
| Total Coliform | 11000 | MPN/100ml |
| Boron | 1.32 | mg/l |
| Calcium | 11.22 | mg/l |
| Chloride | 7.83 | mg/l |
| COD | 28.00 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 10.37 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | 0.8 | mg/l |
| Sodium | 2.7 | mg/l |
| Sulphate | 7.50 | mg/l |
| Total Alkalinity | 24.00 | mg/l |
| Total Dissolved Solids(TDS) | 36.00 | mg/l |
| Total Fixed Solids(TFS) | 38.00 | mg/l |
| Total Hardness as CaCo3 | 64.00 | mg/l |
| Total Suspended Solids(TSS) | 14.00 | mg/l |
| Turbidity | 9.49 | NTU |