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: 25/10/2021 | Sample Time: 14:00 | |
Human Activities: None | Weather: Sunny | Water Body: Mechi |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Green and light turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | 0.13 | mg/l |
BOD | 0.90 | mg/l |
Conductivity | 86.41 | µs/cm |
Dissolved O2(DO) | 6.90 | mg/l |
Fecal Coliform | 2200 | MPN/100ml |
Fecal Streptococci | 10 | MPN/100ml |
Nitrate-N | 0.07 | mg/l |
pH | 6.84 | Unit |
Temperature(Water) | 25 | ⁰C |
Total Coliform | 3300 | MPN/100ml |
Boron | 1.02 | mg/l |
Calcium | 9.62 | mg/l |
Chloride | 4.89 | mg/l |
COD | 22.00 | mg/l |
Fluoride | 0.14 | mg/l |
Magnesium | 3.46 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.002 | mg/l |
Potassium | 0.90 | mg/l |
Sodium | 3.20 | mg/l |
Sulphate | 1.54 | mg/l |
Total Alkalinity | 28.00 | mg/l |
Total Dissolved Solids(TDS) | 12.00 | mg/l |
Total Fixed Solids(TFS) | 56.00 | mg/l |
Total Hardness as CaCo3 | 36.00 | mg/l |
Total Suspended Solids(TSS) | 8.00 | mg/l |
Turbidity | 4.12 | NTU |