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: 09/03/2022 | Sample Time: 14:10 | |
Human Activities: Bathing and Washing | Weather: Sunny and Clear. | Water Body: Mechi |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light Green and clear | Odour: Fishy. | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 1.10 | mg/l |
Conductivity | 85.91 | µs/cm |
Dissolved O2(DO) | 8.40 | mg/l |
Fecal Coliform | 7000 | MPN/100ml |
Fecal Streptococci | 43 | MPN/100ml |
Nitrate-N | 2.33 | mg/l |
pH | 6.86 | Unit |
Temperature(Water) | 25 | ⁰C |
Total Coliform | 22000 | MPN/100ml |
Boron | 0.89 | mg/l |
Calcium | 4.80 | mg/l |
Chloride | 16.63 | mg/l |
COD | 9.20 | mg/l |
Fluoride | BDL | mg/l |
Magnesium | 4.37 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.045 | mg/l |
Potassium | 1.70 | mg/l |
Sodium | 3.60 | mg/l |
Sulphate | 10.36 | mg/l |
Total Alkalinity | 30.00 | mg/l |
Total Dissolved Solids(TDS) | 56.00 | mg/l |
Total Fixed Solids(TFS) | 118.00 | mg/l |
Total Hardness as CaCo3 | 30.00 | mg/l |
Total Suspended Solids(TSS) | 5.00 | mg/l |
Turbidity | 1.42 | NTU |