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: 10/01/2020 Sample Time: 13:45  
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 Moderately Turbid Odour: Rotten Eggs Visible effluent discharge: High


Water Quality
Parameter Test Result Unit
  Total Fixed Solids(TFS)   74.00   mg/l
  Potassium   3.9   mg/l
  Conductivity   128.44   µs/cm
  Nitrate-N   1.45   mg/l
  pH   6.40   Unit
  Temperature   20   ⁰C
  Total Coliform   220000   MPN/100ml
  Boron   9.98   mg/l
  Calcium   30.46   mg/l
  Chloride   23.48   mg/l
  COD   73.00   mg/l
  Fluoride   0.23   mg/l
  Magnesium   5.76   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Sodium   7.0   mg/l
  Sulphate   47.50   mg/l
  Total Alkalinity   82.00   mg/l
  Total Hardness as CaCo3   96.0   mg/l
  Phosphate-P   0.047   mg/l
  Total Suspended Solids(TSS)   80.00   mg/l
  Total Dissolved Solids(TDS)   110.00   mg/l
  Turbidity   2.45   NTU
  Ammonia-N   2.58   mg/l
  BOD   16.00   mg/l
  Dissolved O2(DO)   5.20   mg/l
  Fecal Coliform   110000   MPN/100ml