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: 29/11/2019 | Sample Time: 14:20 Hrs | |
Human Activities: 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 very Turbid. | Odour: Fishy. | Visible effluent discharge: Moderate. |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
BOD | 2.70 | mg/l |
Fecal Coliform | 2200 | MPN/100ml |
Nitrate-N | 1.37 | mg/l |
pH | 6.89 | Unit |
Temperature | 14 | ⁰C |
Total Coliform | 8000 | MPN/100ml |
Boron | 0.011 | mg/l |
Calcium | 13.60 | mg/l |
Chloride | 13.69 | mg/l |
COD | 38.00 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 2.88 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.018 | mg/l |
Potassium | 3.20 | mg/l |
Sodium | 6.80 | mg/l |
Sulphate | 8.85 | mg/l |
Total Alkalinity | 56.00 | mg/l |
Dissolved O2(DO) | 6.00 | mg/l |
Conductivity | 78.54 | µs/cm |
Total Dissolved Solids(TDS) | 78.00 | mg/l |
Total Fixed Solids(TFS) | 78.00 | mg/l |
Total Hardness as CaCo3 | 44.00 | mg/l |
Total Suspended Solids(TSS) | 48.00 | mg/l |
Turbidity | 38.00 | NTU |
Ammonia-N | BDL | mg/l |