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: 06/09/2021 Sample Time: 13:45  
Human Activities: Bathing & washing Weather: Rainy 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: Blackish Odour: Fishy Visible effluent discharge: None, Water Hyacinth


Water Quality
Parameter Test Result Unit
  Ammonia-N   7.98   mg/l
  BOD   11.09   mg/l
  Conductivity   926.60   µs/cm
  Dissolved O2(DO)   NIL   mg/l
  Fecal Coliform   79000   MPN/100ml
  Fecal Streptococci   330   MPN/100ml
  Nitrate-N   0.41   mg/l
  pH   7.62   Unit
  Temperature(Water)   28.0   ⁰C
  Total Coliform   110000   MPN/100ml
  Boron   BDL   mg/l
  Calcium   56.00   mg/l
  Chloride   169.95   mg/l
  COD   43.00   mg/l
  Fluoride   0.42   mg/l
  Magnesium   14.58   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.10   mg/l
  Potassium   10.18   mg/l
  Sodium   69.00   mg/l
  Sulphate   47.76   mg/l
  Total Alkalinity   210.00   mg/l
  Total Dissolved Solids(TDS)   436.00   mg/l
  Total Fixed Solids(TFS)   462.00   mg/l
  Total Hardness as CaCo3   200.00   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Suspended Solids(TSS)   52.00   mg/l
  Turbidity   56.90   NTU