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: 25/01/2022 | Sample Time: 16:30 | |
Human Activities: Boating 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: Septic. | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | 0.12 | mg/l |
BOD | 2.20 | mg/l |
Conductivity | 95.76 | µs/cm |
Fecal Coliform | 5000 | MPN/100ml |
Nitrate-N | 0.07 | mg/l |
pH | 7.52 | Unit |
Temperature(Water) | 7 | ⁰C |
Total Coliform | 11000 | MPN/100ml |
Boron | 2.31 | mg/l |
Calcium | 13.62 | mg/l |
Chloride | 10.76 | mg/l |
COD | 25.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 3.45 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.003 | mg/l |
Potassium | 1.50 | mg/l |
Sodium | 7.40 | mg/l |
Sulphate | 10.69 | mg/l |
Total Alkalinity | 38.00 | mg/l |
Total Dissolved Solids(TDS) | 48.00 | mg/l |
Total Fixed Solids(TFS) | 102.00 | mg/l |
Total Hardness as CaCo3 | 40.00 | mg/l |
Total Suspended Solids(TSS) | 50.00 | mg/l |
Turbidity | 14.50 | NTU |
Dissolved O2(DO) | 6.80 | mg/l |