Table Page 



17 Capacity of Principal United States 



Refining Regions '^^ 



18 Refineries Planned but Not Constructed 191 



19 Estimated Water Requirements for a Representative 

 Petrochemical Complex 197 



20 Estimated Future Water Pollution Loadings of a 

 Representative Petrochemical Complex 200 



21 Relative Ranking of Regions by Location Factor for Future 

 Primary Organic Chemical Development 202 



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