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: 11/07/2022 | Sample Time: 14:15 | |
Human Activities: Bathing,Washing and Fishing. | Weather: Cloudy | Water Body: Mechi |
Frequency Of Monitoring: Monthly | Use Based Class: B | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light green and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 1.40 | mg/l |
Conductivity | 91.41 | µs/cm |
Dissolved O2(DO) | 6.90 | mg/l |
Fecal Coliform | 700 | MPN/100ml |
Fecal Streptococci | 17 | MPN/100ml |
Nitrate-N | 0.14 | mg/l |
pH | 6.80 | Unit |
Temperature(Water) | 29 | ⁰C |
Total Coliform | 5000 | MPN/100ml |
Boron | 1.26 | mg/l |
Calcium | 9.60 | mg/l |
Chloride | 4.89 | mg/l |
COD | 8.00 | mg/l |
Fluoride | 0.15 | mg/l |
Magnesium | 0.97 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.16 | mg/l |
Potassium | 3.80 | mg/l |
Sodium | 6.30 | mg/l |
Sulphate | 11.92 | mg/l |
Total Alkalinity | 28.00 | mg/l |
Total Dissolved Solids(TDS) | 60.00 | mg/l |
Total Fixed Solids(TFS) | 96.00 | mg/l |
Total Hardness as CaCo3 | 28.00 | mg/l |
Total Suspended Solids(TSS) | 41.00 | mg/l |
Turbidity | 7.75 | NTU |