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: 24/09/2019 Sample Time: 10:00 Hrs  
Human Activities: None Weather: Sunny. Water Body: TEESTA AT SILIGURI
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Moderately Brown and Moderately Turbid Odour: None Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Total Dissolved Solids(TDS)   90.0   mg/l
  Total Fixed Solids(TFS)   68.00   mg/l
  Total Hardness as CaCo3   22.00   mg/l
  Total Kjeldahl Nitrogen(TKN)      mg/l
  Total Suspended Solids(TSS)   110.0   mg/l
  Ammonia-N   0.23   mg/l
  Total Alkalinity   38.00   mg/l
  Conductivity   60.23   µs/cm
  Dissolved O2(DO)   7.20   mg/l
  Fecal Coliform   3400   MPN/100ml
  Nitrate-N   0.65   mg/l
  pH   7.46   Unit
  Temperature   29   ⁰C
  Total Coliform   13000   MPN/100ml
  Boron   0.017   mg/l
  Calcium   7.21   mg/l
  Chloride   6.90   mg/l
  COD   29.74   mg/l
  Fluoride   0.17   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.020   mg/l
  Potassium   4.20   mg/l
  Sodium   1.80   mg/l
  Sulphate   24.42   mg/l
  Turbidity   2.26   NTU
  Magnesium   1.152   mg/l
  BOD   1.80   mg/l