West Bengal Pollution Control Board

Siliguri Laboratory

Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428.



Station: Lake Rasikbheel at Coochbehar River Basin: GANGA CPCB Station Code: 4720
Sample Date: 26/07/2019 Sample Time: 14:20  
Human Activities: None Weather: Sunny and Clear Water Body: Lake
Frequency Of Monitoring: Monthly Use Based Class: B Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Clear and dark Green Odour: Odour free Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Conductivity   92.57   µs/cm
  Dissolved O2(DO)   7.60   mg/l
  Fecal Coliform   230   MPN/100ml
  Nitrate-N   0.15   mg/l
  pH   7.44   Unit
  Temperature   27   ⁰C
  Total Coliform   1700   MPN/100ml
  Boron   0.003   mg/l
  Calcium   16.83   mg/l
  Chloride   12.72   mg/l
  COD   9.05   mg/l
  Fluoride   0.14   mg/l
  Magnesium   4.61   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.099   mg/l
  Potassium   BDL   mg/l
  Sodium   0.9   mg/l
  Sulphate   1.96   mg/l
  Total Alkalinity   32.00   mg/l
  Total Dissolved Solids(TDS)   24.00   mg/l
  Total Fixed Solids(TFS)   30.00   mg/l
  Total Hardness as CaCo3   58.00   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Suspended Solids(TSS)   20.00   mg/l
  Turbidity   1.61   NTU
  Ammonia-N   0.32   mg/l
  BOD   1.50   mg/l