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: 26/02/2021 Sample Time: 12:40  
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 Odour: Odour Free Visible effluent discharge: None


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.11   mg/l
  BOD   0.90   mg/l
  Conductivity   29.00   µs/cm
  Dissolved O2(DO)   7.80   mg/l
  Fecal Coliform   110   MPN/100ml
  Nitrate-N   0.04   mg/l
  pH   7.12   Unit
  Temperature(Water)   9   ⁰C
  Total Coliform   170   MPN/100ml
  Boron   0.58   mg/l
  Calcium   1.60   mg/l
  Chloride   4.89   mg/l
  COD   14.00   mg/l
  Fluoride   BDL   mg/l
  Magnesium   1.73   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.002   mg/l
  Potassium   0.20   mg/l
  Sodium   0.70   mg/l
  Sulphate   4.00   mg/l
  Total Alkalinity   42.00   mg/l
  Total Dissolved Solids(TDS)   11.00   mg/l
  Total Fixed Solids(TFS)   6.00   mg/l
  Total Hardness as CaCo3   10.00   mg/l
  Total Suspended Solids(TSS)   8.00   mg/l
  Turbidity      NTU