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: 23/05/2022 Sample Time: 15:05  
Human Activities: Bathing & washing 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: Odour free Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  BOD   2.30   mg/l
  Conductivity   357.40   µs/cm
  Dissolved O2(DO)   5.20   mg/l
  E-coli   33000   MPN/100ml
  Fecal Coliform   49000   MPN/100ml
  Fecal Streptococci   460   MPN/100ml
  Nitrate-N   0.69   mg/l
  Temperature(Water)   31.0   ⁰C
  Total Coliform   130000   MPN/100ml
  Boron   BDL   mg/l
  Calcium   35.20   mg/l
  Chloride   18.19   mg/l
  COD   12.00   mg/l
  Fluoride   0.18   mg/l
  Magnesium   10.21   mg/l
  Nitrite N   0.01   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.14   mg/l
  Potassium   5.60   mg/l
  Sulphate   36.86   mg/l
  Total Alkalinity   138.00   mg/l
  Total Dissolved Solids(TDS)   196.00   mg/l
  Total Fixed Solids(TFS)   104.00   mg/l
  Total Hardness as CaCo3   130.00   mg/l
  Total Suspended Solids(TSS)   20.00   mg/l
  Turbidity   19.30   NTU
  Ammonia-N   0.15   mg/l
  pH   7.62   Unit
  Sodium   44.00   mg/l