West Bengal Pollution Control Board

Siliguri Laboratory

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



Station: TEESTA AT SEVOKE River Basin: Tista CPCB Station Code: 1947
Sample Date: 28/06/2021 Sample Time: 8:30  
Human Activities: None Weather: Cloudy and Rainy. Water Body: TEESTA AT SILIGURI
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Muddy Brown Odour: Fishy Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Total Suspended Solids(TSS)   22.00   mg/l
  Turbidity   3.54   NTU
  Ammonia-N   BDL   mg/l
  BOD   1.80   mg/l
  Conductivity   48.10   µs/cm
  Dissolved O2(DO)   8.0   mg/l
  Fecal Coliform   2100   MPN/100ml
  Fecal Streptococci   17   MPN/100ml
  Nitrate-N   0.15   mg/l
  pH   7.20   Unit
  Temperature(Water)   19   ⁰C
  Total Coliform   7000   MPN/100ml
  Boron   0.55   mg/l
  Calcium   8.02   mg/l
  Chloride   10.76   mg/l
  COD   12.00   mg/l
  Fluoride   BDL   mg/l
  Magnesium   1.15   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.003   mg/l
  Potassium   0.30   mg/l
  Sodium   1.0   mg/l
  Sulphate   2.32   mg/l
  Total Alkalinity   34.00   mg/l
  Total Dissolved Solids(TDS)   12.00   mg/l
  Total Fixed Solids(TFS)   26.00   mg/l
  Total Hardness as CaCo3   24.00   mg/l