West Bengal Pollution Control Board

Central Laboratory

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



Station: RABINDRASAROVAR NATIONAL LAKE, CALCUTTA, WEST BENGAL River Basin: GANGA CPCB Station Code: 1765
Sample Date: 05/11/2020 Sample Time: 12:15  
Human Activities: Nil Weather: Sunny Water Body: Rabindra Sarabar
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.50 m 
Color & Intensity: Clear Odour: Odour free Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Total Suspended Solids(TSS)   30.00   mg/l
  Conductivity   329.40   µs/cm
  Dissolved O2(DO)   8.10   mg/l
  Fecal Coliform   450   MPN/100ml
  Nitrate-N   1.81   mg/l
  pH   7.62   Unit
  Temperature(Water)   28.0   ⁰C
  Ammonia-N   0.27   mg/l
  BOD   4.55   mg/l
  Boron   BDL   mg/l
  Calcium   13.33   mg/l
  Chloride   39.98   mg/l
  COD   20.00   mg/l
  Fluoride   0.18   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.12   mg/l
  Potassium   5.19   mg/l
  Sodium   31.19   mg/l
  Sulphate   21.42   mg/l
  Total Alkalinity   90.00   mg/l
  Total Dissolved Solids(TDS)   70.00   mg/l
  Total Fixed Solids(TFS)   160.00   mg/l
  Total Hardness as CaCo3   64.71   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Coliform   1700   MPN/100ml
  Magnesium   7.62   mg/l
  Turbidity   8.14   NTU