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: 20/09/2019 | Sample Time: 12:00 Hrs | |
| Human Activities: Horse Riding,Boating,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 HighlyTurbid | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Dissolved O2(DO) | 6.80 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 0.63 | mg/l |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 0.016 | mg/l |
| Calcium | 12.02 | mg/l |
| Chloride | 38.64 | mg/l |
| COD | 42.09 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 0.576 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.018 | mg/l |
| Potassium | 2.60 | mg/l |
| Sulphate | 7.67 | mg/l |
| Total Alkalinity | 20.00 | mg/l |
| Total Fixed Solids(TFS) | 148.00 | mg/l |
| Total Hardness as CaCo3 | 32.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Total Suspended Solids(TSS) | 90.00 | mg/l |
| Turbidity | 130.00 | NTU |
| Ammonia-N | 0.43 | mg/l |
| Temperature | 22 | ⁰C |
| Sodium | 3.80 | mg/l |
| BOD | 2.80 | mg/l |
| Conductivity | 78.10 | µs/cm |
| Total Dissolved Solids(TDS) | 110.00 | mg/l |
| pH | 6.50 | Unit |