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: 03/11/2019 Sample Time: 16:15  
Human Activities: none Weather: clear Water Body: Rabindra Sarabar
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 2.00 m 
Color & Intensity: Light green Odour: Odour free Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Conductivity   376.90   µs/cm
  Dissolved O2(DO)   9.20   mg/l
  Fecal Coliform   400   MPN/100ml
  Nitrate-N   1.10   mg/l
  pH   7.79   Unit
  Temperature   27.0   ⁰C
  Total Coliform   1300   MPN/100ml
  Boron   BDL   mg/l
  Calcium   15.69   mg/l
  Chloride   54.98   mg/l
  COD   21.00   mg/l
  Fluoride   0.31   mg/l
  Magnesium   6.43   mg/l
  Phosphate-P   0.07   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Ammonia-N   BDL   mg/l
  Sodium   46.81   mg/l
  Total Suspended Solids(TSS)   52.00   mg/l
  BOD   1.95   mg/l
  Potassium   7.55   mg/l
  Sulphate   14.90   mg/l
  Total Alkalinity   161.50   mg/l
  Total Dissolved Solids(TDS)   190.00   mg/l
  Total Fixed Solids(TFS)   160.00   mg/l
  Total Hardness as CaCo3   65.69   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Turbidity   6.18   NTU