| 
          Sl.No | 
        
          Characters | 
        Sampling Sites | 
       
      
        | P1 | 
        P2 | 
       
      
        | 1. | 
        Colour | 
        Dark    blackish | 
        Black | 
       
      
        | 2. | 
        Temperature | 
        250C | 
        240C | 
       
      
        | 3. | 
        pH | 
        6.9 | 
        7.2 | 
       
      
        | 4. | 
        Total dissolved solids (TDS) mg/l | 
        860 | 
        190 | 
       
      
        | 5. | 
        Odour | 
        Foul | 
        Foul | 
       
      
        | 6. | 
        Conductivity µs/cm | 
        1390 | 
        310 | 
       
      
        | 7. | 
        Total alkalinity mg/l as CaCO3 | 
        135 | 
        31 | 
       
      
        | 8. | 
        Total hardness mg/l (TH) as CaCO3 | 
        218 | 
        48 | 
       
      
        | 9. | 
        Nitrate mg/l as NO3 | 
        04 | 
        03 | 
       
      
        | 10. | 
        Chloride mg/l as Cl | 
        156 | 
        43 | 
       
      
        | 11. | 
        Sulphate mg/l as SO4 | 
        199 | 
        40 | 
       
      
        | 12. | 
        Calcium mg/l as Ca | 
        70 | 
        16 | 
       
      
        | 13. | 
        Magnesium mg/l as Mg | 
        36 | 
        08 | 
       
      
        | 14. | 
        COD mg/l | 
        92 | 
        88 | 
       
      
        | 15. | 
        BOD mg/l | 
        30 | 
        22 | 
       
      
        | 16. | 
        Cr mg/l | 
        0.776 | 
        0.334 | 
       
      |