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: 06/11/2020 Sample Time: 14:00  
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
  COD   16.00   mg/l
  Phosphate-P   0.009   mg/l
  Potassium   BDL   mg/l
  Sodium   BDL   mg/l
  Sulphate   18.21   mg/l
  Total Alkalinity   24.00   mg/l
  Total Dissolved Solids(TDS)   16.00   mg/l
  Total Hardness as CaCo3   16.00   mg/l
  Total Suspended Solids(TSS)   8.0   mg/l
  Turbidity   3.76   NTU
  Boron   0.53   mg/l
  Calcium   4.81   mg/l
  Fluoride   BDL   mg/l
  Chloride   11.74   mg/l
  Magnesium   1.15   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Dissolved O2(DO)   7.60   mg/l
  Fecal Coliform   90   MPN/100ml
  Nitrate-N   0.013   mg/l
  Temperature(Water)   10   ⁰C
  Total Fixed Solids(TFS)   22.00   mg/l
  BOD   0.80   mg/l
  Conductivity   16.91   µs/cm
  pH   7.82   Unit
  Ammonia-N   0.12   mg/l
  Total Coliform   140   MPN/100ml