West Bengal Pollution Control Board

Siliguri Laboratory

Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428.



Station: Ground water at Matigara Bazaar River Basin: GANGA CPCB Station Code: 4721
Sample Date: 25/10/2021 Sample Time: 15:15  
Human Activities: None Weather: Sunny Water Body: Well
Frequency Of Monitoring: Halfyearly Use Based Class: A Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Clear Odour: None Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   BDL   mg/l
  BOD   0.80   mg/l
  Conductivity   61.82   µs/cm
  Fecal Coliform   NIL   MPN/100ml
  Nitrate-N   0.002   mg/l
  pH   7.40   Unit
  Temperature(Water)   23   ⁰C
  Total Coliform   NIL   MPN/100ml
  Boron   0.09   mg/l
  Calcium   9.23   mg/l
  Chloride   12.71   mg/l
  COD   6.00   mg/l
  Fluoride   0.17   mg/l
  Magnesium   9.21   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   BDL   mg/l
  Potassium   BDL   mg/l
  Sodium   2.80   mg/l
  Sulphate   6.15   mg/l
  Total Alkalinity   68.00   mg/l
  Total Dissolved Solids(TDS)   42.00   mg/l
  Total Fixed Solids(TFS)   118.00   mg/l
  Total Hardness as CaCo3   80.00   mg/l
  Total Suspended Solids(TSS)   6.00   mg/l
  Turbidity   18.70   NTU