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: 04/03/2020 Sample Time: 10:15 Hrs  
Human Activities: Open Defaecation Weather: Sunny 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 Blackish Odour: Nauseating Visible effluent discharge: High


Water Quality
Parameter Test Result Unit
  Ammonia-N   3.21   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.007   mg/l
  Potassium   8.20   mg/l
  Sodium   140.00   mg/l
  Temperature   22   ⁰C
  Total Coliform   220000   MPN/100ml
  Calcium   28.06   mg/l
  Total Hardness as CaCo3   80.00   mg/l
  Total Suspended Solids(TSS)   118.00   mg/l
  Conductivity   140.00   µs/cm
  Dissolved O2(DO)   4.60   mg/l
  Sulphate   21.55   mg/l
  Total Dissolved Solids(TDS)   310.00   mg/l
  Total Fixed Solids(TFS)   206.00   mg/l
  Fecal Coliform   70000   MPN/100ml
  Turbidity   9.60   NTU
  Magnesium   2.88   mg/l
  Boron   24.13   mg/l
  Chloride   15.65   mg/l
  Fluoride   0.25   mg/l
  COD   64.00   mg/l
  Nitrate-N   1.17   mg/l
  Total Alkalinity   62.00   mg/l
  pH   6.40   Unit
  BOD   28.00   mg/l