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: 13/10/2021 | Sample Time: 15:40 | |
Human Activities: Bathing,Washing Clothes and Fishing | Weather: Sunny | Water Body: Mahananda at Siliguri |
Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
Color & Intensity: Green and Moderately turbid | Odour: Fishy | Visible effluent discharge: Moderate |
Water Quality | ||
---|---|---|
Parameter | Test Result | Unit |
Ammonia-N | BDL | mg/l |
BOD | 1.20 | mg/l |
Conductivity | 44.60 | µs/cm |
Dissolved O2(DO) | 6.90 | mg/l |
Fecal Coliform | 3000 | MPN/100ml |
Fecal Streptococci | 17 | MPN/100ml |
Nitrate-N | 0.17 | mg/l |
Turbidity | 4.80 | NTU |
pH | 6.50 | Unit |
Temperature(Water) | 30 | ⁰C |
Total Coliform | 11000 | MPN/100ml |
Boron | 0.44 | mg/l |
Calcium | 10.42 | mg/l |
Chloride | 2.94 | mg/l |
COD | 22.00 | mg/l |
Fluoride | 0.11 | mg/l |
Magnesium | 5.18 | mg/l |
Phenolpthalein Alkanity | NIL | mg/l |
Phosphate-P | 0.005 | mg/l |
Potassium | 1.50 | mg/l |
Sodium | 7.20 | mg/l |
Sulphate | 9.13 | mg/l |
Total Alkalinity | 62.00 | mg/l |
Total Dissolved Solids(TDS) | 18.00 | mg/l |
Total Fixed Solids(TFS) | 128.00 | mg/l |
Total Hardness as CaCo3 | 44.00 | mg/l |
Total Suspended Solids(TSS) | 24.00 | mg/l |