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: 18/02/2021 Sample Time: 14:15  
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: Fishy and Septic. Visible effluent discharge: High.


Water Quality
Parameter Test Result Unit
  Ammonia-N   0.27   mg/l
  BOD   13.00   mg/l
  Conductivity   190.48   µs/cm
  Dissolved O2(DO)   5.20   mg/l
  Fecal Coliform   110000   MPN/100ml
  Fecal Streptococci   220   MPN/100ml
  Nitrate-N   0.08   mg/l
  pH   6.50   Unit
  Temperature(Water)   25   ⁰C
  Total Coliform   170000   MPN/100ml
  Boron   4.74   mg/l
  Calcium   16.03   mg/l
  Chloride   8.81   mg/l
  COD   89.00   mg/l
  Fluoride   0.20   mg/l
  Magnesium   2.30   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.076   mg/l
  Potassium   0.70   mg/l
  Sodium   2.30   mg/l
  Sulphate   21.33   mg/l
  Total Alkalinity   16.00   mg/l
  Total Dissolved Solids(TDS)   82.00   mg/l
  Total Fixed Solids(TFS)   118.00   mg/l
  Total Hardness as CaCo3   48.00   mg/l
  Total Suspended Solids(TSS)   146.00   mg/l
  Turbidity      NTU