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: 06/11/2020 | Sample Time: 11:30 | |
Human Activities: Bathing and Washing and Fishing. | 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 turbid | Odour: Fishy | Visible effluent discharge: Moderate |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Total Coliform | 5000 | MPN/100ml |
Turbidity | 2.25 | NTU |
Ammonia-N | 0.14 | mg/l |
Temperature(Water) | 14 | ⁰C |
Boron | 2.52 | mg/l |
Calcium | 7.21 | mg/l |
BOD | 2.40 | mg/l |
Potassium | 2.60 | mg/l |
Total Hardness as CaCo3 | 40.00 | mg/l |
Chloride | 30.33 | mg/l |
COD | 48.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 5.18 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.014 | mg/l |
Sodium | 5.80 | mg/l |
Sulphate | 18.21 | mg/l |
Total Alkalinity | 36.00 | mg/l |
Total Dissolved Solids(TDS) | 124.00 | mg/l |
Total Fixed Solids(TFS) | 84.00 | mg/l |
Total Suspended Solids(TSS) | 50.00 | mg/l |
Conductivity | 66.02 | µs/cm |
Dissolved O2(DO) | 6.20 | mg/l |
Fecal Coliform | 1700 | MPN/100ml |
Nitrate-N | 0.026 | mg/l |
pH | 7.20 | Unit |