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: 15/09/2021 Sample Time: 14:50  
Human Activities: Bathing and Washing . Weather: Sunny and Clear. Water Body: null
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.50 m 
Color & Intensity: Moderately Brown and turbid Odour: Fishy Visible effluent discharge: Moderate


Water Quality
Parameter Test Result Unit
  Phosphate-P   0.006   mg/l
  Potassium   0.40   mg/l
  BOD   1.00   mg/l
  Conductivity   90.90   µs/cm
  Dissolved O2(DO)   6.30   mg/l
  Fecal Coliform   3000   MPN/100ml
  Fecal Streptococci   11   MPN/100ml
  Nitrate-N   0.05   mg/l
  pH   7.12   Unit
  Temperature(Water)   33   ⁰C
  Total Coliform   9000   MPN/100ml
  Boron   1.32   mg/l
  Calcium   19.23   mg/l
  Chloride   1.96   mg/l
  Fluoride   0.11   mg/l
  Magnesium   9.22   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Sodium   1.70   mg/l
  Sulphate   4.50   mg/l
  Total Alkalinity   60.0   mg/l
  Total Dissolved Solids(TDS)   22.00   mg/l
  Total Fixed Solids(TFS)   62.00   mg/l
  Total Hardness as CaCo3   80.00   mg/l
  Total Suspended Solids(TSS)   36.00   mg/l
  Turbidity   24.30   NTU
  Ammonia-N   0.19   mg/l
  COD   22.00   mg/l