West Bengal Pollution Control Board

Siliguri Laboratory

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



Station: MAHANANDA D/S, RAMGHAT River Basin: Mahananda CPCB Station Code: 2525
Sample Date: 10/12/2021 Sample Time: 15:15  
Human Activities: Fishing Weather: Sunny and Clear. Water Body: Ramghat on Mahananda
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Dark Green and turbid Odour: Septic. Visible effluent discharge: High.


Water Quality
Parameter Test Result Unit
  Ammonia-N   3.74   mg/l
  BOD   5.00   mg/l
  Conductivity   171.50   µs/cm
  Dissolved O2(DO)   5.20   mg/l
  Fecal Coliform   130000   MPN/100ml
  Fecal Streptococci   220   MPN/100ml
  Nitrate-N   0.41   mg/l
  pH   6.81   Unit
  Temperature(Water)   24   ⁰C
  Total Coliform   230000   MPN/100ml
  Boron   3.72   mg/l
  Calcium   32.06   mg/l
  Chloride   16.63   mg/l
  COD   38.00   mg/l
  Fluoride   0.20   mg/l
  Magnesium   5.18   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.029   mg/l
  Potassium   3.90   mg/l
  Sodium   8.10   mg/l
  Sulphate   9.02   mg/l
  Total Alkalinity   94.00   mg/l
  Total Dissolved Solids(TDS)   94.00   mg/l
  Total Fixed Solids(TFS)   76.00   mg/l
  Total Hardness as CaCo3   98.00   mg/l
  Total Suspended Solids(TSS)   25.00   mg/l
  Turbidity   13.10   NTU