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: 27/01/2020 | Sample Time: 15:25 | |
| Human Activities: Horse Riding and Fish Feeding | Weather: Cloudy | Water Body: Mirikh lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Dark Green and Moderately turbid | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| COD | 35.00 | mg/l |
| Fecal Coliform | 2100 | MPN/100ml |
| Fluoride | BDL | mg/l |
| Magnesium | 7.49 | mg/l |
| Conductivity | 46.21 | µs/cm |
| BOD | 2.80 | mg/l |
| Temperature | 8 | ⁰C |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.016 | mg/l |
| Potassium | 1.1 | mg/l |
| Sodium | 0.60 | mg/l |
| Sulphate | 15.67 | mg/l |
| Total Alkalinity | 44.00 | mg/l |
| Total Dissolved Solids(TDS) | 70.00 | mg/l |
| Total Fixed Solids(TFS) | 24.00 | mg/l |
| Total Hardness as CaCo3 | 58.0 | mg/l |
| Total Suspended Solids(TSS) | 38.00 | mg/l |
| Turbidity | 1.60 | NTU |
| Dissolved O2(DO) | 6.70 | mg/l |
| Ammonia-N | BDL | mg/l |
| Calcium | 12.83 | mg/l |
| Chloride | 14.68 | mg/l |
| pH | 6.50 | Unit |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 0.88 | mg/l |
| Nitrate-N | 0.29 | mg/l |