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: 22/07/2020 | Sample Time: 14:25 | |
| Human Activities: None | Weather: Sunny | Water Body: Mirikh lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark green and Turbid | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Dissolved O2(DO) | 6.90 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 0.54 | mg/l |
| pH | 6.80 | Unit |
| Temperature(Water) | 16 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 3.14 | mg/l |
| Chloride | 20.55 | mg/l |
| Fluoride | 0.31 | mg/l |
| Magnesium | 3.26 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.190 | mg/l |
| Potassium | 1.80 | mg/l |
| Sodium | 2.60 | mg/l |
| Total Alkalinity | 50.0 | mg/l |
| Total Fixed Solids(TFS) | 20.00 | mg/l |
| Total Hardness as CaCo3 | 46.00 | mg/l |
| Total Suspended Solids(TSS) | 98.00 | mg/l |
| Turbidity | 0.70 | NTU |
| Ammonia-N | BDL | mg/l |
| BOD | 2.20 | mg/l |
| Total Dissolved Solids(TDS) | 76.00 | mg/l |
| Calcium | 12.83 | mg/l |
| COD | 22.00 | mg/l |
| Sulphate | 8.97 | mg/l |
| Conductivity | 128.19 | µs/cm |