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: 18/09/2020 Sample Time: 15:30 Hrs  
Human Activities: None Weather: Cloudy and Raining. 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: None Visible effluent discharge: none


Water Quality
Parameter Test Result Unit
  Chloride   0.98   mg/l
  COD   10.00   mg/l
  Fluoride   0.28   mg/l
  Magnesium   2.30   mg/l
  Conductivity   16.36   µs/cm
  Dissolved O2(DO)   7.40   mg/l
  Ammonia-N   0.19   mg/l
  Fecal Coliform   170   MPN/100ml
  Nitrate-N   0.72   mg/l
  pH   7.70   Unit
  Temperature(Water)   7   ⁰C
  Total Coliform   300   MPN/100ml
  Calcium   11.22   mg/l
  Boron   0.38   mg/l
  BOD   1.20   mg/l
  Sulphate   32.63   mg/l
  Total Alkalinity   42.00   mg/l
  Total Dissolved Solids(TDS)   42.00   mg/l
  Total Fixed Solids(TFS)   22.00   mg/l
  Total Hardness as CaCo3   36.00   mg/l
  Total Suspended Solids(TSS)   20.00   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.026   mg/l
  Potassium   BDL   mg/l
  Sodium   0.60   mg/l
  Turbidity   15.90   NTU