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: 29/12/2021 | Sample Time: 12:45 | |
| Human Activities: Horse riding. | Weather: Cloudy and Raining | Water Body: Mirikh lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderately Green and Moderately Turbid. | Odour: Nauseating | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.16 | mg/l |
| BOD | 2.50 | mg/l |
| Conductivity | 90.92 | µs/cm |
| Dissolved O2(DO) | 5.80 | mg/l |
| Fecal Coliform | 2300 | MPN/100ml |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 2.74 | mg/l |
| Calcium | 10.42 | mg/l |
| Chloride | 14.67 | mg/l |
| COD | 29.76 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 4.03 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.007 | mg/l |
| Potassium | 1.80 | mg/l |
| Sodium | 8.60 | mg/l |
| Sulphate | 0.53 | mg/l |
| Total Alkalinity | 24.00 | mg/l |
| Total Dissolved Solids(TDS) | 54.00 | mg/l |
| Total Fixed Solids(TFS) | 128.00 | mg/l |
| Total Hardness as CaCo3 | 40.00 | mg/l |
| Total Suspended Solids(TSS) | 28.00 | mg/l |
| Turbidity | 14.77 | NTU |
| Nitrate-N | 0.16 | mg/l |
| pH | 7.50 | Unit |
| Temperature(Water) | 4 | ⁰C |