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: 20/05/2022 Sample Time: 14:20  
Human Activities: Bathing and Washing Weather: Cloudy Water Body: null
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Moderately Brown and turbid Odour: Fishy Visible effluent discharge: Moderate


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.13   mg/l
  BOD   1.80   mg/l
  Conductivity   117.00   µs/cm
  Dissolved O2(DO)   6.30   mg/l
  Fecal Coliform   9000   MPN/100ml
  Fecal Streptococci   170   MPN/100ml
  Nitrate-N   1.75   mg/l
  pH   7.36   Unit
  Temperature(Water)   27   ⁰C
  Total Coliform   17000   MPN/100ml
  Boron   3.57   mg/l
  Calcium   10.42   mg/l
  Chloride   4.89   mg/l
  COD   15.00   mg/l
  Fluoride   BDL   mg/l
  Magnesium   5.34   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.011   mg/l
  Potassium   3.00   mg/l
  Sodium   4.80   mg/l
  Sulphate   9.10   mg/l
  Total Alkalinity   48.00   mg/l
  Total Dissolved Solids(TDS)   58.00   mg/l
  Total Fixed Solids(TFS)   148.00   mg/l
  Total Hardness as CaCo3   48.00   mg/l
  Total Suspended Solids(TSS)   87.00   mg/l
  Turbidity   35.30   NTU