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: 09/06/2022 Sample Time: 13:20  
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: Light Green and Clear Odour: Fishy Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   BDL   mg/l
  Conductivity   94.35   µs/cm
  Dissolved O2(DO)   6.80   mg/l
  Fecal Coliform   5000   MPN/100ml
  Nitrate-N   0.15   mg/l
  pH   7.10   Unit
  Temperature(Water)   28   ⁰C
  Total Coliform   50000   MPN/100ml
  Boron   2.82   mg/l
  Calcium   16.00   mg/l
  Chloride   3.91   mg/l
  COD   6.24   mg/l
  Fluoride   BDL   mg/l
  Magnesium   0.48   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.012   mg/l
  Potassium   2.10   mg/l
  Sodium   8.40   mg/l
  Sulphate   9.23   mg/l
  Total Alkalinity   44.00   mg/l
  Total Dissolved Solids(TDS)   53.00   mg/l
  Total Fixed Solids(TFS)   76.00   mg/l
  Total Hardness as CaCo3   42.00   mg/l
  Total Suspended Solids(TSS)   14.00   mg/l
  Turbidity   5.73   NTU
  BOD   2.10   mg/l