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: 16/03/2022 Sample Time: 15:15  
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: Dark Green and clear. Odour: Fishy Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   BDL   mg/l
  BOD   2.20   mg/l
  Conductivity   124.00   µs/cm
  Dissolved O2(DO)   8.20   mg/l
  Nitrate-N   4.52   mg/l
  pH   7.18   Unit
  Temperature(Water)   26   ⁰C
  Total Coliform   2600   MPN/100ml
  Boron   2.15   mg/l
  Calcium   14.40   mg/l
  Chloride   41.09   mg/l
  COD   9.60   mg/l
  Fluoride   BDL   mg/l
  Magnesium   5.34   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.009   mg/l
  Potassium   1.90   mg/l
  Sodium   3.20   mg/l
  Sulphate   4.25   mg/l
  Total Alkalinity   56.00   mg/l
  Total Dissolved Solids(TDS)   77.00   mg/l
  Total Fixed Solids(TFS)   98.00   mg/l
  Total Hardness as CaCo3   58.00   mg/l
  Total Suspended Solids(TSS)   36.00   mg/l
  Turbidity   1.26   NTU
  Fecal Coliform   800   MPN/100ml