West Bengal Pollution Control Board

Siliguri Laboratory

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



Station: River Teesta at Jalpesh River Basin: Tista CPCB Station Code: 4723
Sample Date: 16/02/2022 Sample Time: 13:45  
Human Activities: Fishing Weather: Sunny and Clear. Water Body: Teesta
Frequency Of Monitoring: Monthly Use Based Class: B Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Light Green and moderately turbid Odour: Fishy. Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.17   mg/l
  BOD   1.90   mg/l
  Conductivity   76.93   µs/cm
  Dissolved O2(DO)   8.60   mg/l
  Fecal Coliform   200   MPN/100ml
  Fecal Streptococci   4.50   MPN/100ml
  Nitrate-N   2.24   mg/l
  pH   6.26   Unit
  Temperature(Water)   19   ⁰C
  Total Coliform   400   MPN/100ml
  Boron   0.93   mg/l
  Calcium   15.23   mg/l
  Chloride   3.91   mg/l
  COD   13.86   mg/l
  Fluoride   0.17   mg/l
  Magnesium   2.88   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.008   mg/l
  Potassium   0.90   mg/l
  Sodium   1.40   mg/l
  Sulphate   7.64   mg/l
  Total Alkalinity   38.00   mg/l
  Total Dissolved Solids(TDS)   52.00   mg/l
  Total Fixed Solids(TFS)   92.00   mg/l
  Total Hardness as CaCo3   48.00   mg/l
  Total Suspended Solids(TSS)   23.00   mg/l
  Turbidity   16.50   NTU