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: 23/06/2022 Sample Time: 14:30  
Human Activities: None Weather: Sunny and Clear. Water Body: Teesta
Frequency Of Monitoring: Monthly Use Based Class: B Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Moderately Brown and turbid Odour: Fishy Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Boron   2.54   mg/l
  Calcium   5.60   mg/l
  Chloride   0.97   mg/l
  COD   14.00   mg/l
  Fluoride   0.12   mg/l
  Magnesium   1.45   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.037   mg/l
  Potassium   3.90   mg/l
  Sodium   4.20   mg/l
  Total Fixed Solids(TFS)   832.00   mg/l
  Total Hardness as CaCo3   20.00   mg/l
  Total Suspended Solids(TSS)   1834.00   mg/l
  Turbidity   356.00   NTU
  Ammonia-N   BDL   mg/l
  BOD   2.10   mg/l
  Conductivity   44.84   µs/cm
  Dissolved O2(DO)   6.80   mg/l
  Fecal Coliform   2200   MPN/100ml
  Fecal Streptococci   39   MPN/100ml
  Nitrate-N   1.11   mg/l
  pH   7.57   Unit
  Temperature(Water)   28   ⁰C
  Total Coliform   5000   MPN/100ml
  Sulphate   8.37   mg/l
  Total Alkalinity   22.00   mg/l
  Total Dissolved Solids(TDS)   23.00   mg/l