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: 09/12/2019 Sample Time: 12:05  
Human Activities: none Weather: Sunny 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
  Nitrate-N   1.15   mg/l
  pH   7.58   Unit
  Temperature   26.0   ⁰C
  Total Coliform   2100   MPN/100ml
  Boron   BDL   mg/l
  Calcium   10.61   mg/l
  Chloride   36.98   mg/l
  COD   18.00   mg/l
  Sulphate   27.93   mg/l
  Total Alkalinity   100   mg/l
  Total Dissolved Solids(TDS)   28.00   mg/l
  Total Fixed Solids(TFS)   128.00   mg/l
  Total Hardness as CaCo3   67.32   mg/l
  Phosphate-P   0.06   mg/l
  Fluoride   0.30   mg/l
  Magnesium   9.79   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Potassium   7.28   mg/l
  Sodium   73.48   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Suspended Solids(TSS)   8.00   mg/l
  Turbidity   8.76   NTU
  Ammonia-N   BDL   mg/l
  BOD   3.65   mg/l
  Conductivity   368.60   µs/cm
  Dissolved O2(DO)   9.40   mg/l
  Fecal Coliform   1100   MPN/100ml