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: 28/06/2021 Sample Time: 14:10  
Human Activities: None Weather: Sunny and Clear. Water Body: null
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Light Brown and moderately turbid Odour: Fishy Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.18   mg/l
  BOD   2.20   mg/l
  Conductivity   43.93   µs/cm
  Dissolved O2(DO)   7.0   mg/l
  Fecal Coliform   2300   MPN/100ml
  Fecal Streptococci   25   MPN/100ml
  Nitrate-N   0.15   mg/l
  pH   7.53   Unit
  Temperature(Water)   23   ⁰C
  Total Coliform   11000   MPN/100ml
  Boron   1.61   mg/l
  Calcium   14.40   mg/l
  Chloride   20.55   mg/l
  COD   50.00   mg/l
  Fluoride   BDL   mg/l
  Magnesium   5.76   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.008   mg/l
  Potassium   0.60   mg/l
  Sodium   1.60   mg/l
  Sulphate   19.79   mg/l
  Total Alkalinity   56.00   mg/l
  Total Dissolved Solids(TDS)   26.00   mg/l
  Total Fixed Solids(TFS)   42.00   mg/l
  Total Hardness as CaCo3   56.00   mg/l
  Total Suspended Solids(TSS)   32.00   mg/l
  Turbidity   5.26   NTU