Table 4.5.3.4.1. Potential Changes to Water Resources from Stockpile Management Alternatives at Pantex Plant

Affected Resource Indicator No Action Single-Shift
Operation 2005 		Downsize
Assembly/Disassembly and High Explosives Fabrication Three-Shift Operation 		Downsize Assembly/Disassembly Three-Shift Operation Phaseout Assembly/Disassembly and High Explosives Fabrication
Construction

     

     

     

     

Water Availability and Use

     

     

     

     

Water source
 Ground Ground Ground Ground
Total site water operation requirement 1 (MLY)
 0 2 249.7 249.5 0
Percent change from No Action water use (249 MLY)
 NA 0.3 0.2 -100
Water Quality
        
Wastewater discharge to playas 3 (MLY)
 0b 141.5 141.3 0
Percentage change from No Action wastewater discharge (141 MLY)
 NA 0.28 0.21 -100
Operation        
Water Availability and Use
        
Water source
 Ground Ground Ground Ground
Total water requirement (MLY)
 249 209 196 0
Percent change from No Action water use (249 MLY)
 NA -16 -21 -100
Percent change from current use (836 MLY)
 -70 -75 -77 -100
Water Quality
        
Wastewater discharge to playas c (MLY)
 141 148 141 0
Percentage change from No Action wastewater discharge (141 MLY)
 NA 5 0 -100
Percent change from current wastewater discharge (480 MLY)
-71 -69 -71 -100
Floodplain        
Actions in 100-year floodplains
 NA None None NA
Actions in 500-year floodplains
 NA None None NA
1 Total water requirements for construction at Pantex are based on a 3-year time period for A/D and HE fabrication. 2 No construction water would be used or construction wastewater generated. Total site water use and wastewater discharged would be the same as No Action operation. 3 All discharges to natural drainages require NPDES permits. Note: NA - not applicable; MLY - million liters per year. Source: PX MH 1995a.