West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
Station: MAHANANDA AT SILIGURI | River Basin: Mahananda | CPCB Station Code: 1946 |
Sample Date: 22/09/2021 | Sample Time: 16:45 | |
Human Activities: Fishing,washing and bathing | Weather: Sunny and Clear. | Water Body: Mahananda at Siliguri |
Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Light Brown and turbid | Odour: Fishy | Visible effluent discharge: Moderate |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 1.60 | mg/l |
Conductivity | 85.74 | µs/cm |
Dissolved O2(DO) | 7.0 | mg/l |
Fecal Coliform | 1400 | MPN/100ml |
Fecal Streptococci | 14 | MPN/100ml |
Nitrate-N | 0.18 | mg/l |
pH | 6.75 | Unit |
Temperature(Water) | 29 | ⁰C |
Total Coliform | 3400 | MPN/100ml |
Boron | 1.13 | mg/l |
Calcium | 11.22 | mg/l |
Chloride | 8.80 | mg/l |
COD | 28.00 | mg/l |
Fluoride | 0.14 | mg/l |
Magnesium | 9.22 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.005 | mg/l |
Potassium | 1.5 | mg/l |
Sodium | 3.1 | mg/l |
Sulphate | 6.85 | mg/l |
Total Alkalinity | 50.0 | mg/l |
Total Dissolved Solids(TDS) | 24.00 | mg/l |
Total Fixed Solids(TFS) | 64.00 | mg/l |
Total Hardness as CaCo3 | 60.00 | mg/l |
Total Suspended Solids(TSS) | 38.00 | mg/l |
Turbidity | 4.39 | NTU |