West Bengal Pollution Control Board

Siliguri Laboratory

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



Station: River Torsa D/S of Ghughumari River Basin: GANGA CPCB Station Code: 4719
Sample Date: 27/12/2019 Sample Time: 15:15 Hrs  
Human Activities: Bathing and washing. Weather: Sunny and Clear. Water Body: Torsa
Frequency Of Monitoring: Monthly Use Based Class: B Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Dark brown and muddy. Odour: Fishy Visible effluent discharge: None.


Water Quality
Parameter Test Result Unit
  Total Hardness as CaCo3   96.00   mg/l
  Temperature   19   ⁰C
  Total Coliform   17000   MPN/100ml
  Boron   0.024   mg/l
  Calcium   22.45   mg/l
  Total Suspended Solids(TSS)   34.00   mg/l
  Total Fixed Solids(TFS)   216.00   mg/l
  Turbidity   1.13   NTU
  Sodium   0.60   mg/l
  Ammonia-N   BDL   mg/l
  Phosphate-P   0.009   mg/l
  Potassium   2.30   mg/l
  Chloride   5.87   mg/l
  COD   46.00   mg/l
  Dissolved O2(DO)   7.10   mg/l
  Fecal Coliform   3300   MPN/100ml
  Nitrate-N   0.69   mg/l
  pH   7.10   Unit
  Fluoride   0.14   mg/l
  Magnesium   11.52   mg/l
  Sulphate   29.61   mg/l
  Total Alkalinity   84.00   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Total Dissolved Solids(TDS)   68.00   mg/l
  Conductivity   120.60   µs/cm
  BOD   2.10   mg/l