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: 17/03/2022 | Sample Time: 16:25 | |
| Human Activities: Horse riding | Weather: Sunny and Clear. | 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: Septic. | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.23 | mg/l |
| BOD | 2.20 | mg/l |
| Conductivity | 136.60 | µs/cm |
| Dissolved O2(DO) | 6.00 | mg/l |
| Fecal Coliform | 7000 | MPN/100ml |
| Nitrate-N | 0.23 | mg/l |
| pH | 6.64 | Unit |
| Temperature(Water) | 17 | ⁰C |
| Total Coliform | 17000 | MPN/100ml |
| Boron | 1.98 | mg/l |
| Calcium | 16.00 | mg/l |
| Chloride | 18.58 | mg/l |
| COD | 38.40 | mg/l |
| Fluoride | 0.16 | mg/l |
| Magnesium | 0.97 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.009 | mg/l |
| Potassium | 2.00 | mg/l |
| Sodium | 6.30 | mg/l |
| Sulphate | 1.85 | mg/l |
| Total Alkalinity | 54.00 | mg/l |
| Total Dissolved Solids(TDS) | 68.00 | mg/l |
| Total Fixed Solids(TFS) | 114.00 | mg/l |
| Total Hardness as CaCo3 | 44.00 | mg/l |
| Total Suspended Solids(TSS) | 18.00 | mg/l |
| Turbidity | 19.20 | NTU |