West Bengal Pollution Control Board

Siliguri Laboratory

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



Station: Groundwater at Sukna forest range River Basin: GANGA CPCB Station Code: 4733
Sample Date: 28/10/2021 Sample Time: 10:30 Hrs  
Human Activities: Drinking and Domestic 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: None Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   BDL   mg/l
  BOD   0.40   mg/l
  Conductivity   125   µs/cm
  Fecal Coliform   NIL   MPN/100ml
  Nitrate-N   0.002   mg/l
  pH   7.41   Unit
  Temperature(Water)   20   ⁰C
  Total Coliform   NIL   MPN/100ml
  Boron   BDL   mg/l
  Calcium   28.00   mg/l
  Chloride   6.84   mg/l
  COD   4.00   mg/l
  Fluoride   BDL   mg/l
  Magnesium   2.43   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   BDL   mg/l
  Potassium   BDL   mg/l
  Sodium   BDL   mg/l
  Sulphate   5.14   mg/l
  Total Alkalinity   88.00   mg/l
  Total Dissolved Solids(TDS)   72.00   mg/l
  Total Fixed Solids(TFS)   48.00   mg/l
  Total Hardness as CaCo3   84.00   mg/l
  Total Suspended Solids(TSS)   8.00   mg/l
  Turbidity   282.00   NTU