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: 24/11/2020 Sample Time: 16:15  
Human Activities: Bathing & washing, Navigation Weather: clear Water Body: Ganga
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 2.00 m 
Color & Intensity: Light brown Odour: Odour free Visible effluent discharge: Moderate, Water Hyacinth


Water Quality
Parameter Test Result Unit
  pH   7.05   Unit
  Fluoride   0.25   mg/l
  Phosphate-P   0.07   mg/l
  Potassium   3.88   mg/l
  Sodium   14.05   mg/l
  Sulphate   23.92   mg/l
  Total Alkalinity   146.00   mg/l
  Total Dissolved Solids(TDS)   132.00   mg/l
  Total Fixed Solids(TFS)   246.00   mg/l
  Total Hardness as CaCo3   133.33   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Suspended Solids(TSS)   64.00   mg/l
  Turbidity   32.30   NTU
  Ammonia-N   0.43   mg/l
  BOD   4.20   mg/l
  Nitrite N   0.06   mg/l
  Conductivity   311.50   µs/cm
  Magnesium   8.58   mg/l
  Dissolved O2(DO)   6.90   mg/l
  E-coli   79000   MPN/100ml
  Fecal Coliform   110000   MPN/100ml
  Fecal Streptococci   130   MPN/100ml
  Nitrate-N   0.63   mg/l
  Total Coliform   170000   MPN/100ml
  Boron   BDL   mg/l
  Calcium   39.22   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Temperature(Water)   25.0   ⁰C
  Chloride   16.99   mg/l
  COD   16.00   mg/l