West Bengal Pollution Control Board

Central Laboratory

Paribesh Bhawan, 10A, Block LA, Sector III, Salt Lake City, Kolkata 700 106. (033) 2335-5953



Station: U/S OF BIDYADHARI RIVER AT HAROA BRIDGE River Basin: Tidal streams CPCB Station Code: 2549
Sample Date: 09/09/2019 Sample Time: 13:30  
Human Activities: Bathing & washing, fisfing Weather: Cloudy Water Body: U/S OF BIDYADHARI RIVER AT HAROA BRIDGE
Frequency Of Monitoring: Quarterly Use Based Class: A Approximate Depth(Bottom/Table): 1.50 m 
Color & Intensity: Mod Brown Odour: Odour free Visible effluent discharge: Moderate


Water Quality
Parameter Test Result Unit
  Total Hardness as CaCo3   470.59   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Nitrate-N   1.55   mg/l
  Ammonia-N   0.83   mg/l
  BOD   5.00   mg/l
  Boron   BDL   mg/l
  Magnesium   68.82   mg/l
  Total Suspended Solids(TSS)   64.00   mg/l
  Turbidity   71.70   NTU
  Dissolved O2(DO)   0.60   mg/l
  Fecal Coliform   21000   MPN/100ml
  Calcium   70.59   mg/l
  COD   29.00   mg/l
  Fluoride   0.41   mg/l
  Conductivity   964.00   µs/cm
  pH   7.68   Unit
  Temperature   32.0   ⁰C
  Total Coliform   70000   MPN/100ml
  Total Alkalinity   248.40   mg/l
  Chloride   100.50   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.10   mg/l
  Potassium   8.97   mg/l
  Sodium   69.94   mg/l
  Sulphate   16.31   mg/l
  Total Dissolved Solids(TDS)   474.00   mg/l
  Total Fixed Solids(TFS)   562.00   mg/l