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: 23/04/2021 Sample Time: 13:40  
Human Activities: Bathing & washing Weather: Cloudy Water Body: Ganga
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 2.00 m 
Color & Intensity: Dark Brown Odour: Odour free Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.18   mg/l
  BOD   3.30   mg/l
  Conductivity   4420.00   µs/cm
  Dissolved O2(DO)   6.20   mg/l
  E-coli   780   MPN/100ml
  Fecal Coliform   2300   MPN/100ml
  Fecal Streptococci   <1.8   MPN/100ml
  Nitrate-N   0.01   mg/l
  pH   7.84   Unit
  Temperature(Water)   33.0   ⁰C
  Total Coliform   7000   MPN/100ml
  Boron   BDL   mg/l
  Calcium   244.00   mg/l
  Chloride   2089.77   mg/l
  COD   13.00   mg/l
  Fluoride   0.32   mg/l
  Magnesium   51.03   mg/l
  Nitrite N   0.01   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.06   mg/l
  Potassium   36.44   mg/l
  Sodium   531.80   mg/l
  Sulphate   257.39   mg/l
  Total Alkalinity   190.00   mg/l
  Total Dissolved Solids(TDS)   548.00   mg/l
  Total Fixed Solids(TFS)   500.00   mg/l
  Total Hardness as CaCo3   820.00   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Suspended Solids(TSS)   180.00   mg/l
  Turbidity   197.00   NTU