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: 10/08/2020 | Sample Time: 15;45 Hrs | |
| Human Activities: None | Weather: Cloudy | Water Body: Mirikh lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 0.00 m |
| Color & Intensity: Dark Green and Highly Turbid | Odour: Other | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Calcium | 2.40 | mg/l |
| COD | 12.00 | mg/l |
| Fluoride | BDL | mg/l |
| Boron | 0.53 | mg/l |
| Total Coliform | 170 | MPN/100ml |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.019 | mg/l |
| Sodium | 4.2 | mg/l |
| Sulphate | 2.52 | mg/l |
| Total Alkalinity | 16.0 | mg/l |
| Total Suspended Solids(TSS) | 12.00 | mg/l |
| Temperature(Water) | 12 | ⁰C |
| Turbidity | 3.90 | NTU |
| BOD | 0.50 | mg/l |
| Conductivity | 17.69 | µs/cm |
| Magnesium | 2.30 | mg/l |
| Total Hardness as CaCo3 | 6.00 | mg/l |
| Potassium | 4.4 | mg/l |
| Dissolved O2(DO) | 7.40 | mg/l |
| pH | 7.34 | Unit |
| Chloride | 0.97 | mg/l |
| Ammonia-N | BDL | mg/l |
| Fecal Coliform | 90 | MPN/100ml |
| Total Dissolved Solids(TDS) | 70.0 | mg/l |
| Total Fixed Solids(TFS) | 12.00 | mg/l |
| Nitrate-N | 0.32 | mg/l |