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 DIAMOND HARBOUR, WEST BENGAL River Basin: GANGA CPCB Station Code: 1469
Sample Date: 25/10/2021 Sample Time: 14:10  
Human Activities: Navigation Weather: Sunny clear 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, Water Hyacinth


Water Quality
Parameter Test Result Unit
  Ammonia-N   BDL   mg/l
  BOD   2.00   mg/l
  Conductivity   278.50   µs/cm
  Dissolved O2(DO)   5.30   mg/l
  E-coli   4500   MPN/100ml
  Fecal Coliform   6800   MPN/100ml
  Fecal Streptococci   46   MPN/100ml
  Nitrate-N   0.58   mg/l
  pH   7.47   Unit
  Temperature(Water)   31.0   ⁰C
  Total Coliform   14000   MPN/100ml
  Boron   BDL   mg/l
  Calcium   64.00   mg/l
  Chloride   34.99   mg/l
  COD   16.00   mg/l
  Fluoride   0.32   mg/l
  Magnesium   12.15   mg/l
  Nitrite N   0.01   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.14   mg/l
  Potassium   4.05   mg/l
  Sodium   15.16   mg/l
  Sulphate   22.11   mg/l
  Total Alkalinity   130.00   mg/l
  Total Dissolved Solids(TDS)   268.00   mg/l
  Total Fixed Solids(TFS)   302.00   mg/l
  Total Hardness as CaCo3   210.00   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Suspended Solids(TSS)   140.00   mg/l
  Turbidity   93.50   NTU