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: 06/05/2022 Sample Time: 11:25  
Human Activities: Bathing washing, Fishing Weather: Sunny Water Body: Ganga
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 2.00 m 
Color & Intensity: Clear Odour: Odour free Visible effluent discharge: None, Floating Algae


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.24   mg/l
  BOD   2.20   mg/l
  Conductivity   402.40   µs/cm
  Dissolved O2(DO)   5.20   mg/l
  E-coli   33000   MPN/100ml
  Fecal Coliform   46000   MPN/100ml
  Fecal Streptococci   330   MPN/100ml
  Nitrate-N   0.30   mg/l
  pH   7.64   Unit
  Temperature(Water)   29.0   ⁰C
  Total Coliform   130000   MPN/100ml
  Boron   BDL   mg/l
  Calcium   33.60   mg/l
  Chloride   24.46   mg/l
  COD   13.00   mg/l
  Fluoride   0.22   mg/l
  Magnesium   12.64   mg/l
  Nitrite N   0.06   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.01   mg/l
  Potassium   5.10   mg/l
  Sodium   34.00   mg/l
  Sulphate   32.99   mg/l
  Total Alkalinity   146.00   mg/l
  Total Dissolved Solids(TDS)   160.00   mg/l
  Total Fixed Solids(TFS)   162.00   mg/l
  Total Hardness as CaCo3   136.00   mg/l
  Total Suspended Solids(TSS)   52.00   mg/l
  Turbidity   31.60   NTU