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: 30/12/2019 | Sample Time: 10:10 Hrs | |
| Human Activities: Fish feeding,horse riding on the adjacent park. | 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 Highly Turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Sodium | 6.50 | mg/l |
| Sulphate | 11.04 | mg/l |
| Total Alkalinity | 56.00 | mg/l |
| Fecal Coliform | 2600 | MPN/100ml |
| Total Fixed Solids(TFS) | 100.00 | mg/l |
| Total Hardness as CaCo3 | 48.00 | mg/l |
| Ammonia-N | 0.11 | mg/l |
| Magnesium | 5.76 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.024 | mg/l |
| Potassium | 3.40 | mg/l |
| pH | 6.61 | Unit |
| Temperature | 11 | ⁰C |
| Nitrate-N | 2.71 | mg/l |
| Total Coliform | 5000 | MPN/100ml |
| Boron | 0.011 | mg/l |
| BOD | 2.20 | mg/l |
| Conductivity | 101.20 | µs/cm |
| Dissolved O2(DO) | 6.70 | mg/l |
| Calcium | 11.22 | mg/l |
| Chloride | 10.76 | mg/l |
| COD | 43.00 | mg/l |
| Fluoride | BDL | mg/l |
| Total Dissolved Solids(TDS) | 96.00 | mg/l |
| Total Suspended Solids(TSS) | 50.00 | mg/l |
| Turbidity | 4.42 | NTU |