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: 13/11/2020 Sample Time: 15:50  
Human Activities: Bathing and Washing . Weather: Sunny and Hot. Water Body: Ramghat on Mahananda
Frequency Of Monitoring: Quarterly Use Based Class: C Approximate Depth(Bottom/Table): 1.00 m 
Color & Intensity: Dark Brown Odour: Septic Visible effluent discharge: High.


Water Quality
Parameter Test Result Unit
  Dissolved O2(DO)   5.60   mg/l
  pH   6.50   Unit
  Boron   4.45   mg/l
  Calcium   20.04   mg/l
  Chloride   31.31   mg/l
  COD   88.0   mg/l
  Nitrate-N   0.009   mg/l
  Fluoride   0.15   mg/l
  Temperature(Water)   27   ⁰C
  Magnesium   13.82   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.049   mg/l
  Total Coliform   140000   MPN/100ml
  Conductivity   163.0   µs/cm
  Fecal Coliform   90000   MPN/100ml
  BOD   16.00   mg/l
  Fecal Streptococci   2800   MPN/100ml
  Total Suspended Solids(TSS)   96.00   mg/l
  Turbidity   30.70   NTU
  Ammonia-N   0.19   mg/l
  Sodium   8.40   mg/l
  Sulphate   54.43   mg/l
  Total Alkalinity   94.00   mg/l
  Total Dissolved Solids(TDS)   210.00   mg/l
  Total Fixed Solids(TFS)   28.00   mg/l
  Total Hardness as CaCo3   96.00   mg/l
  Potassium   3.20   mg/l