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: 25/03/2021 Sample Time: 13:05 Hrs  
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: None Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.13   mg/l
  BOD   1.10   mg/l
  Conductivity   18.00   µs/cm
  Dissolved O2(DO)   7.80   mg/l
  Fecal Coliform   70   MPN/100ml
  Nitrate-N   0.03   mg/l
  pH   6.90   Unit
  Temperature(Water)   8   ⁰C
  Total Coliform   140   MPN/100ml
  Boron   0.27   mg/l
  Calcium   4.01   mg/l
  Chloride   0.98   mg/l
  COD   8.00   mg/l
  Fluoride   BDL   mg/l
  Magnesium   1.73   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.001   mg/l
  Potassium   4.20   mg/l
  Sodium   BDL   mg/l
  Sulphate   3.66   mg/l
  Total Alkalinity   20.0   mg/l
  Total Dissolved Solids(TDS)   10.00   mg/l
  Total Fixed Solids(TFS)   26.00   mg/l
  Total Hardness as CaCo3   16.00   mg/l
  Total Suspended Solids(TSS)   6.00   mg/l
  Turbidity   0.64   NTU