Subproject: Groundwater Supply (SP-9) 



Disturbing Activity: Groundwater withdrawal 



The volume of water needed by a petrochemical plant depends on the 

 type of processing and cooling systems utilized, and the plant capacity. 

 For a large and varied multiple plant complex, total water supply require- 

 ments may reach 24 MMGD (Table 16). Large demands for groundwater 



Table 16. Estimated Water Requirements for a Representative 

 Petrochemical Complex (Source: Reference 25) 



Petrochemical 



Annual Output 

 (Million lbs) 



Daily Water Use 

 (Million GPD) 



Orthoxylene 



Toluene 



Xylenes 



Benzene 



Styrene 



Ethylbenzene 



Ethylene 

 Propylene 



Butadiene 

 Butyl ene 



139 



2,150 



380 

 87 



1,560 

 194 



0.4 



1.8 



3.0 

 0.5 



6.0 

 0.5 



Cumene 

 Phenol 

 Acetone 



520 



0.8 



Polyethylene 



Ethylene Glycol 



Vinyl Chloride Monomer 



Polypropylene 



Oxo Alcohols 



Acrylonitrile 



Cyclohexanone 



Total 



90 

 200 

 500 



70 

 245 

 100 

 237 



6,472 



0.3 

 1.6 

 4.0 

 0.2 

 1.3 

 1.9 

 1.6 



24.0 

 (approx.) 



66 



