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: 18/06/2021 Sample Time: 14:00  
Human Activities: None Weather: Rainy 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: Nauseating Visible effluent discharge: Moderate


Water Quality
Parameter Test Result Unit
  BOD   18.00   mg/l
  Conductivity   141.60   µs/cm
  Dissolved O2(DO)   4.80   mg/l
  Fecal Coliform   140000   MPN/100ml
  Fecal Streptococci   170   MPN/100ml
  Nitrate-N   0.56   mg/l
  pH   8.19   Unit
  Temperature(Water)   25   ⁰C
  Total Coliform   220000   MPN/100ml
  Boron   4.12   mg/l
  Calcium   20.80   mg/l
  Chloride   38.16   mg/l
  COD   96.00   mg/l
  Fluoride   0.16   mg/l
  Magnesium   6.91   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.039   mg/l
  Potassium   2.5   mg/l
  Sodium   7.2   mg/l
  Sulphate   44.42   mg/l
  Total Alkalinity   88.00   mg/l
  Total Dissolved Solids(TDS)   98.00   mg/l
  Total Fixed Solids(TFS)   138.00   mg/l
  Total Hardness as CaCo3   76.00   mg/l
  Total Suspended Solids(TSS)   116.00   mg/l
  Turbidity   110.00   NTU
  Ammonia-N   0.22   mg/l