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Home My WebLink AboutNC0001422_Table 6-4 GW Remedial Alternative Environmental_20160201TABLE 6-4 GROUNDWATER REMEDIATION ALTERNATIVE SCREENING - ENVIRONMENTAL SUSTAINABILITY L.V. SUTTON ENERGY COMPLEX DUKE ENERGY PROGRESS, LLC, WILMINGTON, NC Alternative 1 Alternative 2 Alternative 3 Environmental Sustainability Monitored Natural Attenuation Hydraulic Containment Wells/MNA Hydraulic Containment & Source (MNA) Extraction Wells/MNA Eastern Eastern North/ Eastern North/ Site Area FADA Down- North/West FADA Down- West FADA Down- West gradient gradient gradient Will treatment permanently remove Yes, Yes, Yes, Yes, Yes, Yes, target constituents? through through through through through through diffusion, NA diffusion, diffusion, Yes diffusion, diffusion, Yes diffusion, dispersion, dispersion, dispersion, dispersion, dispersion, dispersion, dilution dilution dilution dilution dilution dilution Will treatment permanently reduce No NA No No Yes No No Yes No target constituent toxicity? Will treatment reduce the mobility of Yes NA Yes Yes Yes Yes Yes Yes Yes target constituents? Will treatment transfer target Yes NA Yes Yes Yes Yes Yes Yes Yes constituents from one media to another? Rank alternatives: carbon footprint 1 NA 1 1 2 1 1 2 1 Rank alternatives: waste generated 1 NA 1 1 2 1 1 2 1 Potential Potential List opportunities for recycling or use of use of beneficial reuse NA NA NA NA treated NA NA treated NA effluent for effluent for irrigation irrigation List opportunities where renewable Uses Uses Uses natural Uses Uses Uses Uses sources of energy will be used. natural natural processes natural None natural natural None natural processes processes processes processes processes processes List opportunities for habitat Habitats Habitats Habitats not Habitats Habitats Habitats Habitats restoration, enhancement, or not not affected not None not not None not replacement. affected affected affected affected affected affected Prepared By: PEW Checked By: KW Notes: Rank 1= lowest; 5= Highest NA= Not applicable P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\20.EG_CAP\CAP Part 2\Tables\Tables 6-2 to 6-6 Sutton rev3.docx Page 1 of 1