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: 12/10/2020 Sample Time: 13:30  
Human Activities: None Weather: Sunny and Hot. 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
  Total Hardness as CaCo3   34.00   mg/l
  Fecal Coliform   NIL   MPN/100ml
  Nitrate-N   1.77   mg/l
  Temperature(Water)   26   ⁰C
  Total Coliform   NIL   MPN/100ml
  Boron   BDL   mg/l
  Chloride   11.74   mg/l
  COD   6.00   mg/l
  Fluoride   0.22   mg/l
  Magnesium   2.304   mg/l
  Phosphate-P   BDL   mg/l
  Potassium   BDL   mg/l
  Sodium   6.40   mg/l
  Total Alkalinity   44.00   mg/l
  Total Dissolved Solids(TDS)   98.00   mg/l
  Total Fixed Solids(TFS)   34.00   mg/l
  Turbidity   12.00   NTU
  Conductivity   86.00   µs/cm
  Ammonia-N   BDL   mg/l
  BOD   0.60   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Sulphate   25.48   mg/l
  pH   7.40   Unit
  Calcium   6.41   mg/l
  Total Suspended Solids(TSS)   4.00   mg/l