West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: River Mechi at Nehaljote | River Basin: Mahananda | CPCB Station Code: 4727 |
Sample Date: 26/11/2021 | Sample Time: 16:00 | |
Human Activities: None | Weather: Sunny and Clear. | Water Body: Mechi |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Moderately Brown and turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 2.20 | mg/l |
Conductivity | 85.29 | µs/cm |
Dissolved O2(DO) | 7.00 | mg/l |
Fecal Coliform | 1700 | MPN/100ml |
Fecal Streptococci | 23 | MPN/100ml |
Nitrate-N | 0.07 | mg/l |
pH | 7.43 | Unit |
Temperature(Water) | 21 | ⁰C |
Total Coliform | 5000 | MPN/100ml |
Boron | 4.43 | mg/l |
Calcium | 16.83 | mg/l |
Chloride | 18.59 | mg/l |
COD | 24.0 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 4.60 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.002 | mg/l |
Potassium | 4.10 | mg/l |
Sodium | 6.50 | mg/l |
Sulphate | 12.71 | mg/l |
Total Alkalinity | 28.00 | mg/l |
Total Dissolved Solids(TDS) | 46.0 | mg/l |
Total Fixed Solids(TFS) | 62.00 | mg/l |
Total Hardness as CaCo3 | 42.00 | mg/l |
Total Suspended Solids(TSS) | 105.00 | mg/l |
Turbidity | 3.03 | NTU |