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GROUND WATER QUALITY CHARACTERISATION FOR CALABAR SOUTH, CROSS RIVER STATE,SOUTH SOUTH NIGERIA. By: ANTIGHA, R. E. E., UKPONG, E. C. & UYANAH, D. E

ABSTRACT

Ground  water  model  for  Calabar  South  was  developed,  based  on  fourteen  parameters (water  quality)  such  as  Temperature,  PH  ,  Dissolve  Oxygen,  water  quality,   TCC,  THC, Nitrate  concentration,  BOD,  Conductivity,  Turbidity,  and  Ammonium.  The  Boreholes were investigated for four months from ten sampling locations. The contaminant compound of interests were total coliform count, heterotrophic count, and nitrate concentration,  due  to  their  hazardous  nature  and  health  problems  to  the  society.  The  predicted  values  were  compared  with  the  actual  concentration  values.  The values were retrieved  and  analyzed  in  the  SPSS  Enter  model  package  to  find  the  concentration  of Nitrate,  THC  and  TCC  in  the  ground  water  for  various  locations.  In  the  entire  model, total coliform accounted for 18.429, total heterotrophic count 14.75% with a predicting value  of  21.22%.  the percentage  error  between  the  actual  and  calculated  values  was 42.76% and a regression equation of best fit developed as: Y=    b0  +  b 1X  1  +  b 2X  2  +  b 3X3 (where  Y=Water  quality,  b o =  Regression constant, b 1 - b 3 =  b-variates, X 1 -  X  3  =  Model predictors).  The  result  reveals  that  about  50%  of  the  parameters  considered  failed  to meet the required objectives. The predictors constant were, TCC, THC and NO 3. Based on  the  statistical  analysis,  the  predicted  model  may  be  expressed  as  Y  =  -17.261  + 3.849x 1 +0.861X 2  +1.6E- 12X3. 

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