West Bengal Pollution Control Board

Siliguri Laboratory

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



Station: KALJANI D/S OF ALIPURDWAR, MUNICIPALITY DISCHARGE POINT River Basin: Raidak_Torsa CPCB Station Code: 2524
Sample Date: 15/07/2022 Sample Time: 12:10  
Human Activities: Bathing and Washing Weather: Sunny and Clear. Water Body: null
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Dark Green and turbid Odour: Fishy Visible effluent discharge: Moderate


Water Quality
Parameter Test Result Unit
  Ammonia-N   BDL   mg/l
  BOD   1.80   mg/l
  Conductivity   154.40   µs/cm
  Dissolved O2(DO)   6.90   mg/l
  Fecal Coliform   8000   MPN/100ml
  Fecal Streptococci   110   MPN/100ml
  Nitrate-N   0.10   mg/l
  pH   7.42   Unit
  Temperature(Water)   28   ⁰C
  Total Coliform   17000   MPN/100ml
  Boron   0.54   mg/l
  Calcium   18.40   mg/l
  Chloride   2.93   mg/l
  COD   13.00   mg/l
  Fluoride   BDL   mg/l
  Magnesium   6.31   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.07   mg/l
  Potassium   2.30   mg/l
  Sodium   5.10   mg/l
  Sulphate   11.16   mg/l
  Total Alkalinity   76.00   mg/l
  Total Dissolved Solids(TDS)   108.00   mg/l
  Total Fixed Solids(TFS)   210.00   mg/l
  Total Hardness as CaCo3   72.00   mg/l
  Total Suspended Solids(TSS)   68.00   mg/l
  Turbidity   20.50   NTU