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: 26/10/2021 Sample Time: 15:40  
Human Activities: Fishing Weather: Sunny Water Body: null
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Green and Moderately turbid Odour: Fishy Visible effluent discharge: Moderate


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.12   mg/l
  BOD   1.80   mg/l
  Conductivity   68.12   µs/cm
  Dissolved O2(DO)   6.90   mg/l
  Fecal Coliform   2100   MPN/100ml
  Fecal Streptococci   11   MPN/100ml
  Nitrate-N   0.07   mg/l
  pH   7.02   Unit
  Temperature(Water)   28   ⁰C
  Total Coliform   7000   MPN/100ml
  Boron   0.93   mg/l
  Calcium   9.62   mg/l
  Chloride   5.87   mg/l
  COD   16.00   mg/l
  Fluoride   BDL   mg/l
  Magnesium   2.30   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.034   mg/l
  Potassium   0.80   mg/l
  Sodium   2.20   mg/l
  Sulphate   10.26   mg/l
  Total Alkalinity   56.00   mg/l
  Total Dissolved Solids(TDS)   32.00   mg/l
  Total Fixed Solids(TFS)   126.00   mg/l
  Total Hardness as CaCo3   32.00   mg/l
  Total Suspended Solids(TSS)   20.00   mg/l
  Turbidity   24.50   NTU