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: 13/10/2019 Sample Time: 14:20  
Human Activities:  None Weather: Sunny and Clear Water Body: Well
Frequency Of Monitoring: Halfyearly Use Based Class: A Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Clear Odour: Odour free Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  BOD   0.20   mg/l
  Ammonia-N   BDL   mg/l
  Total Coliform   NIL   MPN/100ml
  Boron   BDL   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Magnesium   1.73   mg/l
  Nitrate-N   0.50   mg/l
  Fluoride   0.19   mg/l
  Chloride   4.89   mg/l
  Temperature   28   ⁰C
  Fecal Coliform   NIL   MPN/100ml
  COD   8.00   mg/l
  pH   7.70   Unit
  Calcium   7.21   mg/l
  Total Alkalinity   50.0   mg/l
  Total Dissolved Solids(TDS)   110.0   mg/l
  Total Fixed Solids(TFS)   174.00   mg/l
  Total Suspended Solids(TSS)   6.00   mg/l
  Turbidity   14.00   NTU
  Conductivity   91.15   µs/cm
  Phosphate-P   0.002   mg/l
  Potassium   BDL   mg/l
  Sodium   7.50   mg/l
  Sulphate   36.08   mg/l
  Total Hardness as CaCo3   24.0   mg/l