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: 30/09/2020 Sample Time: 13:00 Hrs  
Human Activities: Bathing,Washing and Sand Recovery. Weather: Sunny and Humid Water Body: Teesta
Frequency Of Monitoring: Monthly Use Based Class: B Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Brown and moderately Turbid Odour: None Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Dissolved O2(DO)   7.40   mg/l
  Temperature(Water)   28   ⁰C
  Total Coliform   8000   MPN/100ml
  Phosphate-P   0.014   mg/l
  Potassium   1.60   mg/l
  Sodium   0.90   mg/l
  Nitrate-N   1.04   mg/l
  Total Hardness as CaCo3   36.00   mg/l
  pH   7.00   Unit
  Turbidity   117.00   NTU
  Ammonia-N   0.15   mg/l
  BOD   2.30   mg/l
  Conductivity   17.22   µs/cm
  Phenolpthalein Alkanity   NIL   mg/l
  Boron   4.74   mg/l
  Fluoride   0.13   mg/l
  Magnesium   5.80   mg/l
  Total Suspended Solids(TSS)   82.00   mg/l
  Fecal Coliform   2200   MPN/100ml
  Calcium   6.42   mg/l
  Chloride   0.98   mg/l
  COD   30.00   mg/l
  Sulphate   11.79   mg/l
  Total Alkalinity   40.00   mg/l
  Total Dissolved Solids(TDS)   96.00   mg/l
  Total Fixed Solids(TFS)   388.00   mg/l