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: 31/05/2019 Sample Time: 14:10  
Human Activities: None Weather: Clear and Sunny 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: Fishy Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Conductivity   62.05   µs/cm
  Dissolved O2(DO)   7.00   mg/l
  Fecal Coliform   170   MPN/100ml
  Boron   0.003   mg/l
  Calcium   16.03   mg/l
  Chloride   18.59   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Potassium   1.00   mg/l
  Sodium   0.90   mg/l
  COD   6.18   mg/l
  Nitrate-N   0.16   mg/l
  Sulphate   2.01   mg/l
  Total Alkalinity   50.00   mg/l
  Total Dissolved Solids(TDS)   10.00   mg/l
  pH   7.20   Unit
  Total Coliform   700   MPN/100ml
  Total Fixed Solids(TFS)   30.00   mg/l
  Total Hardness as CaCo3   44.00   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Fluoride   0.16   mg/l
  Phosphate-P   0.064   mg/l
  Magnesium   1.15   mg/l
  Temperature   24   ⁰C
  Total Suspended Solids(TSS)   8.00   mg/l
  Turbidity   3.12   NTU
  Ammonia-N   0.30   mg/l
  BOD   1.80   mg/l