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: 10/12/2020 Sample Time: 15:10  
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: Fishy and Septic. Visible effluent discharge: High.


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.24   mg/l
  BOD   10.00   mg/l
  Total Coliform   170000   MPN/100ml
  Fecal Streptococci   470   MPN/100ml
  Nitrate-N   0.003   mg/l
  pH   6.54   Unit
  Temperature(Water)   19   ⁰C
  Boron   4.74   mg/l
  Calcium   3.20   mg/l
  Chloride   2.93   mg/l
  Fluoride   0.12   mg/l
  Magnesium   6.33   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.058   mg/l
  Potassium   3.80   mg/l
  Sodium   8.10   mg/l
  Sulphate   45.43   mg/l
  Total Alkalinity   20.00   mg/l
  Total Dissolved Solids(TDS)   186.00   mg/l
  Total Fixed Solids(TFS)   178.00   mg/l
  Total Hardness as CaCo3   30.00   mg/l
  Total Suspended Solids(TSS)   38.00   mg/l
  Fecal Coliform   110000   MPN/100ml
  Dissolved O2(DO)   3.80   mg/l
  Conductivity   92.61   µs/cm
  COD   68.00   mg/l
  Turbidity   24.60   NTU