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: 11/07/2019 | Sample Time: 14:00 | |
Human Activities: Fish Feeding and Horse Riding. | Weather: Cloudy | Water Body: Mirikh lake |
Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Muddy and Dark Brown | Odour: Nauseating | Visible effluent discharge: Moderate |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Conductivity | 123.20 | µs/cm |
Dissolved O2(DO) | 7.20 | mg/l |
Fecal Coliform | 5000 | MPN/100ml |
Nitrate-N | 1.19 | mg/l |
pH | 6.90 | Unit |
Temperature | 18 | ⁰C |
Total Coliform | 11000 | MPN/100ml |
Boron | 0.013 | mg/l |
Calcium | 10.42 | mg/l |
Chloride | 20.54 | mg/l |
COD | 32.76 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 1.61 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.185 | mg/l |
Potassium | 1.10 | mg/l |
Sodium | 2.05 | mg/l |
Sulphate | 7.39 | mg/l |
Total Alkalinity | 66.00 | mg/l |
Total Dissolved Solids(TDS) | 110.00 | mg/l |
Total Fixed Solids(TFS) | 185.00 | mg/l |
Total Hardness as CaCo3 | 31.62 | mg/l |
Total Kjeldahl Nitrogen(TKN) | mg/l | |
Total Suspended Solids(TSS) | 182.00 | mg/l |
Turbidity | 65.30 | NTU |
Ammonia-N | 0.14 | mg/l |
BOD | 2.80 | mg/l |