The Life Cycle Cost Advantages for Nested Horizontal Well Installations of Typical Treatment Technologies at Active Sites
Alyssa Wharton, P.E., Project Engineer, EN Rx, Inc.
Nested Horizontal Wells (NHWs) have been installed and monitored for performance for most remedial technologies including Air Sparging (AS), Bio Sparging (BS), Soil Vapor Extraction (SVE), Ozone Sparging (Ozone), Advanced Oxidation Processes (AOP), Insitu Chemical Oxidation (ISCO) Injection, Vapor Mitigation, and Recirculation. In most cases NHWs are being installed below buildings, roadways, or fueling components but they are also installed in open spaces where vertical comparisons can be observed. The cost effectiveness of this type of installation can be misunderstood especially as the capabilities have drastically improved with recent advancements. This presentation will illustrate the many cost features and customizations and compare the life cycle cost economics to traditional vertical layouts. Side by side these results will be shown to gauge the relative savings on numerous sites around the country from Colorado (AS/SVE), Florida (BS & Ozone), Texas (SVE), Arizona (ISCO Injection), and California (Vapor Mitigation). The costs will be presented as a matrix, and we will provide general site layouts as we take a 10,000 ft view to examine the capabilities of NHWs.
Alyssa Wharton has worked as a Project Engineer for over 7 years with EN Rx, Inc. Using her environmental engineering degree (go Gators) and problem-solving skills, she loves the creative process of designing each site big and small and finding the best remedial fit, whether it be with our versatile Vertebrae Well Systems, or the unparalleled EN Rx Reagent. Alyssa enjoys working on various teams which has allowed for opportunities to collaborate on product improvement and upgrades. We all share this one planet and thus she believes it is a privilege to work on solutions for assessment and remediation, ranging in scale from your local gas station to EPA superfund sites.