West Bengal Pollution Control Board

Siliguri Laboratory

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



Station: SINCHAL LAKE FOR DARJEELING River Basin: Tista CPCB Station Code: 2522
Sample Date: 16/07/2021 Sample Time: 12:45  
Human Activities: None Weather: Cloudy Water Body: Sinchal lake
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Light Green and clear Odour: Odour Free Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Conductivity   26.79   µs/cm
  Dissolved O2(DO)   7.80   mg/l
  Fecal Coliform   80   MPN/100ml
  Phosphate-P   0.002   mg/l
  Potassium   BDL   mg/l
  Sodium   BDL   mg/l
  Sulphate   1.94   mg/l
  Total Alkalinity   18.00   mg/l
  Total Dissolved Solids(TDS)   16.00   mg/l
  Nitrate-N   0.03   mg/l
  pH   7.20   Unit
  Temperature(Water)   11   ⁰C
  Total Coliform   110   MPN/100ml
  Boron   0.34   mg/l
  Calcium   9.62   mg/l
  Chloride   0.98   mg/l
  COD   5.52   mg/l
  Fluoride   BDL   mg/l
  Magnesium   3.46   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Total Fixed Solids(TFS)   12.00   mg/l
  Total Hardness as CaCo3   36.00   mg/l
  Total Suspended Solids(TSS)   8.00   mg/l
  Turbidity   0.89   NTU
  Ammonia-N   BDL   mg/l
  BOD   0.80   mg/l