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: 17/05/2019 Sample Time: 14:20 Hrs  
Human Activities: None 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 Brown Odour: Nauseating. Visible effluent discharge: High.


Water Quality
Parameter Test Result Unit
  BOD   18.00   mg/l
  Conductivity   219.00   µs/cm
  Dissolved O2(DO)   1.30   mg/l
  Fecal Coliform   130000   MPN/100ml
  Nitrate-N   0.13   mg/l
  pH   6.94   Unit
  Temperature   27   ⁰C
  Total Coliform   280000   MPN/100ml
  Ammonia-N   2.85   mg/l
  Magnesium   6.91   mg/l
  Phenolpthalein Alkanity   NIL   mg/l
  Phosphate-P   0.044   mg/l
  Potassium   8.10   mg/l
  Sodium   412.00   mg/l
  Sulphate   22.32   mg/l
  Total Alkalinity   104.00   mg/l
  Total Dissolved Solids(TDS)   224.00   mg/l
  Total Fixed Solids(TFS)   <4.0   mg/l
  Total Hardness as CaCo3   82.00   mg/l
  Total Suspended Solids(TSS)   98.00   mg/l
  Turbidity   1.70   NTU
  Boron   0.022   mg/l
  Calcium   23.25   mg/l
  Chloride   24.46   mg/l
  COD   75.00   mg/l
  Fluoride   0.24   mg/l