West Bengal Pollution Control Board

Central Laboratory

Paribesh Bhawan, 10A, Block LA, Sector III, Salt Lake City, Kolkata 700 106. (033) 2335-5953



Station: GANGA AT GARDEN REACH, WEST BENGAL River Basin: GANGA CPCB Station Code: 1470
Sample Date: 07/03/2022 Sample Time: 12:15  
Human Activities: Bathing & washing, Navigation Weather: Sunny Water Body: Ganga
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.50 m 
Color & Intensity: Light green Odour: Odour free Visible effluent discharge: Moderate, Floating Algea


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.34   mg/l
  BOD   3.20   mg/l
  Conductivity   445.70   µs/cm
  Dissolved O2(DO)   7.10   mg/l
  E-coli   46000   MPN/100ml
  Fecal Coliform   70000   MPN/100ml
  Fecal Streptococci   400   MPN/100ml
  Nitrate-N   0.85   mg/l
  pH   7.42   Unit
  Temperature(Water)   29.0   ⁰C
  Total Coliform   130000   MPN/100ml
  Boron   BDL   mg/l
  Calcium   41.60   mg/l
  Chloride   23.93   mg/l
  COD   12.00   mg/l
  Fluoride   0.20   mg/l
  Magnesium   10.69   mg/l
  Nitrite N   0.04   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.07   mg/l
  Potassium   4.80   mg/l
  Sodium   36.00   mg/l
  Sulphate   53.27   mg/l
  Total Alkalinity   154.00   mg/l
  Total Dissolved Solids(TDS)   170.00   mg/l
  Total Fixed Solids(TFS)   180.00   mg/l
  Total Hardness as CaCo3   148.00   mg/l
  Total Suspended Solids(TSS)   140.00   mg/l
  Turbidity   44.60   NTU