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: 20/01/2021 | Sample Time: 16:00 | |
Human Activities: None. | Weather: Cloudy and foggy | 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: None | Visible effluent discharge: Moderate |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | 0.24 | mg/l |
BOD | 2.10 | mg/l |
Magnesium | 5.18 | mg/l |
Conductivity | 127.00 | µs/cm |
Total Dissolved Solids(TDS) | 84.00 | mg/l |
Dissolved O2(DO) | 6.70 | mg/l |
Fecal Coliform | 2100 | MPN/100ml |
Nitrate-N | 0.136 | mg/l |
pH | 7.1 | Unit |
Temperature(Water) | 11 | ⁰C |
Total Coliform | 5000 | MPN/100ml |
Boron | 2.81 | mg/l |
Calcium | 7.21 | mg/l |
Chloride | 6.84 | mg/l |
COD | 38.00 | mg/l |
Fluoride | 0.16 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.004 | mg/l |
Potassium | 1.50 | mg/l |
Sodium | 5.80 | mg/l |
Sulphate | 11.14 | mg/l |
Total Alkalinity | 36.00 | mg/l |
Total Fixed Solids(TFS) | 40.00 | mg/l |
Total Hardness as CaCo3 | 36.00 | mg/l |
Total Suspended Solids(TSS) | 38.00 | mg/l |
Turbidity | 19.70 | NTU |