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: 16/03/2022 Sample Time: 13:15  
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: Light Green and moderately turbid Odour: Fishy Visible effluent discharge: Moderate


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.21   mg/l
  BOD   2.20   mg/l
  Conductivity   153.10   µs/cm
  Dissolved O2(DO)   8.90   mg/l
  Fecal Coliform   5000   MPN/100ml
  Fecal Streptococci   25   MPN/100ml
  Nitrate-N   0.09   mg/l
  pH   7.11   Unit
  Temperature(Water)   29   ⁰C
  Total Coliform   11000   MPN/100ml
  Boron   0.72   mg/l
  Calcium   20.00   mg/l
  Chloride   5.87   mg/l
  COD   9.60   mg/l
  Fluoride   BDL   mg/l
  Magnesium   5.83   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.006   mg/l
  Potassium   BDL   mg/l
  Sodium   2.10   mg/l
  Sulphate   5.56   mg/l
  Total Alkalinity   76.00   mg/l
  Total Dissolved Solids(TDS)   77.00   mg/l
  Total Fixed Solids(TFS)   128.00   mg/l
  Total Hardness as CaCo3   74.00   mg/l
  Total Suspended Solids(TSS)   10.00   mg/l
  Turbidity   2.94   NTU