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: 03/12/2020 Sample Time: 12:00  
Human Activities: Bathing & washing, Navigation Weather: Sunny Water Body: Ganga
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 2.00 m 
Color & Intensity: Light green Odour: Rotten eggs Visible effluent discharge: Floating Algea


Water Quality
Parameter Test Result Unit
  Chloride   20.99   mg/l
  Fluoride   0.24   mg/l
  Magnesium   9.53   mg/l
  Nitrite N   0.03   mg/l
  Phosphate-P   0.09   mg/l
  Potassium   3.38   mg/l
  Sodium   11.18   mg/l
  Sulphate   25.51   mg/l
  Total Alkalinity   146.00   mg/l
  Total Dissolved Solids(TDS)   130.00   mg/l
  Total Fixed Solids(TFS)   186.00   mg/l
  Total Hardness as CaCo3   141.18   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Suspended Solids(TSS)   74.00   mg/l
  Turbidity   45.00   NTU
  Ammonia-N   0.18   mg/l
  BOD   2.30   mg/l
  E-coli   40000   MPN/100ml
  Fecal Coliform   79000   MPN/100ml
  Dissolved O2(DO)   6.70   mg/l
  Fecal Streptococci   170   MPN/100ml
  COD   17.00   mg/l
  Nitrate-N   1.07   mg/l
  pH   6.85   Unit
  Temperature(Water)   27.0   ⁰C
  Conductivity   345.50   µs/cm
  Total Coliform   170000   MPN/100ml
  Boron   BDL   mg/l
  Calcium   40.78   mg/l
  Phenolpthalein Alkanity   NIL   mg/l