CTR072296_Amendment_1_-_Adds_Key_Personnel.pdf

Form approved by CPO, Rev. 12-18-2018

CONTRACT

AMENDMENT

CONTRACT NO.: CTR072296

AMENDMENT NO.: 1

TITLE: ASRAC Assessment and Remediation of Hazardous Substances CONTRACTOR: CDM Smith, Inc.

ADEQ PROCUREMENT

1110 W. Washington Street Phoenix, AZ 85007 602-771-4140

THE PURPOSE OF THIS AMENDMENT IS TO:

In accordance with the Uniform Terms and Conditions, 5.1 Amendments, this contract is hereby amended as follows:

1. Add the following key Personnel

• Jeffrey McDonough, Professional Level 5.

2. All other Requirements, Specifications, Terms and Conditions remain unchanged.

THE ABOVE REFERENCED AMENDMENT IS A

UNILATERAL ACKNOWLEDGEMENT OF

CONTRACTOR’S APPROVED CHANGED

REQUEST.

ARIZONA DEPARTMENT OF ENVIRONMENTAL QUALITY

The above referenced Amendment is hereby executed this 17th day of July 2024 at Phoenix, Arizona.

Ana Machiche Procurement Officer

Available online at Arizona Procurement Portal (APP) eProcurement System https://app.az.gov https://app.az.gov/

Jeffrey McDonough, MS, PE Environmental Engineer

Jeff McDonough is an established expert in designing, implementing, and troubleshooting conventional and innovative in situ and ex situ remediation technologies on a global scale.

Currently, his primary focus lies on addressing complex contaminants such as PFAS and 1,4-dioxane, aiming to bridge the gap in viable treatment alternatives for drinking water and environmental media. Jeff's collaborative approach extends to partnerships with universities, fostering thought leadership, and translating laboratory-based innovations into field-scale applications through pilot and treatability testing. As a trusted third-party reviewer, Jeff enhances remedial strategies through collaborative input, leveraging his passion and enthusiasm to deliver optimal outcomes for clients.

With a distinguished career, Jeff drives remediation initiatives forward on a national and international level. His expertise spans a wide range of contaminants. Jeff's leadership extends to project support, staff training, and participation in remedial strategy development, emphasizing novel in situ and ex situ remediation systems. As the PFAS Remediation Discipline Lead at CDM Smith, Jeff continues to contribute significantly to the external technical knowledge base, having co-authored textbooks and chapters on remediation engineering and emerging contaminants as well as routinely presenting at industry leading conferences. In recognition of his outstanding contributions, Jeff was honored with the ENR MidAtlantic's Top Young Professional Award in 2017.

PFAS Remediation Support PFAS Subject Matter Support, Confidential Project, Confidential Client, Goulburn Mulwaree, New South Wales, Australia 2024 - Ongoing. In support of a request from the regulators for a focused and pragmatic technical review on the efficacy of high temperature thermal treatment t o achieve mineralization of PFAS, Jeff conducted a review of over 75 publications on the subject and summarized the findings into a brief letter report. The regulators were balancing a proposal from industry with an objection from the public and needed an unbiased overview of the known information and inherent risks. The key to delivering the client a successful product on this project was summarizing a technical topic into understandable language to help the regulators communicate with the public.

PFAS Subject Matter Support, Confidential Project, Confidential Client, Newport News, VA 2024 - Ongoing. As a subject matter expert, Jeff was asked to review a Remedial Investigation Addendum Report and a Feasibility Study to characterize and subsequently address PFAS impacts, respectively. Due to historical firefighting training, AFFF was discharged onto concrete infrastructure that drained through a concrete subsurface stormwater conveyance structure. The conveyance directed runoff towards a containment pond that eventually discharges to a drinking water reservoir. Analytical results suggest that PFAS are likely slowing leaching from the concrete infrastructure and are routinely measured in runoff and surface water. The feasibility evaluation included conventional and numerous innovative approaches to manage and mitigate PFAS leaching and reduce the PFAS mass flux to the drinking water reservoir.

Education

MS – Environmental Engineering, Pennsylvania State University, 2006

BS – Civil and Environmental Engineering, Minor in Environmental Engineering, Pennsylvania State University, 2005

Registration

Professional Engineer (PE): New Jersey (2010)

Honors/Awards

ENR MidAtlantic’s Top Young Professional Award (2017)

PFAS Subject Matter Support, Confidential Project, Confidential Client, Colorado Springs, CO 2024 - Ongoing. As a subject matter expert, Jeff is supporting the design and execution of a Remedial Investigation and Feasibility Study (RI/FS) for a U.S.

DoD client. Jeff’s responsibilities include technical QA/QC and strategic support to deliver the RI/FS on time and on budget. The PFAS investigation is mostly related to historical usage of AFFF, though some suspected sources include wastewater treatment and maintenance operations. The RI/FS builds upon a preliminary assessment and site inspection that identified numerous Areas of Potential Interest that are believed to be contributing to a groundwater plume extending offsite. Data from the RI/FS will be incorporated into the Remedial Design to appropriately address PFAS onsite within source areas and mitigate further offsite PFAS migration.

Prior to CDM Smith

ERM (2022 – 2024)

Technical Director, Firefighting Foam Characterization and Associated Waste Management, Confidential Client, Midwest, United States, 2022 – 2022. In supporting a team's response to a regulatory request to characterize unknown or unlabeled firefighting foam, Jeff provided guidance on selecting the appropriate analytical method.

The results of this characterization discretely confirmed the presence of PFAS within the firefighting foam.

Thanks to Jeff's recommendations, the analysis was able to identify the potential for PFAS.

Without these modifications, there was a risk of PFAS being overlooked, potentially leading to mishandling of the waste. Jeff's expertise ensured accurate characterization and proper handling of the firefighting foam, aligning with regulatory requirements and best practices.

Third-Party Technical Reviewer, Thermal Treatment Technology Evaluation:

Applicability to Dense Nonaqueous Phase Liquids (DNAPL) and Hydrolysis, Confidential Client, Victoria, Australia, 2022 - 2023. At a confidential site in Australia, Jeff provided support to a team of international collaborators, including two consultancies, in evaluating the applicability of radio frequency heating to a DNAPL source of chlorinated ethanes. Acting as a third-party contributor, Jeff aided the team by interpreting pilot-scale data performance, considering hydrolysis factors, and assessing the application's effectiveness within the hydrogeological context.

Technical Director, PFAS-Focused Compliance Support for Planned Redevelopment, Confidential Client, Bay Area, California, 2022 - 2023. In support of a large redevelopment project, Jeff assisted a team of multidisciplinary experts in advising on construction practices compliant with PFAS regulations. He collaborated with another consultant who conducted sampling under his direction, interpreting and evaluating the data for the team.

One notable evaluation Jeff performed was a sensitivity analysis on the depth of excavation and associated waste management costs based on PFAS characterization data.

His contributions were essential in ensuring the project adhered to regulatory requirements while optimizing construction practices.

Technical Director, Source-Area Feasibility Study Support, Confidential Client, Melbourne, Australia, 2022 - 2023. For a former fire training ground in Australia, Jeff provided support for a feasibility evaluation of various options. This involved offering cost estimates, considering waste management options, and contributing to the conceptual design of full-scale remedies. Jeff's input was essential in assessing the viability of potential solutions and laying the groundwork for effective remediation strategies.

Co-Principal Investigator, Confidential Project, Confidential Client, University of Queensland, Australia, 2022 – 2024. At the request of the client, Jeff continued to support and oversee research and development collaboration with the University of Queensland on two topics: PFAS leaching from concrete and cleaning out firefighting foam conveyance equipment.

Throughout his involvement in the project, Jeff plays a crucial role in conducting comprehensive assessments and evaluations to address PFAS contamination issues in concrete infrastructure and firefighting foam conveyance equipment. His contributions supported the team's efforts to develop sustainable and efficient management strategies, contributing to the advancement of knowledge and practices in PFAS remediation and containment within the industry.

Technical Director, Technical Support for Environmental Media Characterization, Confidential Client, Southeast, United States, 2022 - 2024. Following a significant accidental release of aqueous film-forming foam (AFFF), Jeff assisted a team in investigating the lateral extent of PFAS within shallow soil, groundwater, and throughout a production facility, including subsurface stormwater conveyance structures, sediment, surface water, and a wastewater treatment plant discharge. He facilitated the collection and analysis of samples for a full suite of PFAS, including some total oxidizable precursor (TOP) assay analysis.

Through a forensic evaluation of the source and aerial PFAS impacts, Jeff helped the team identify differences in the PFAS signatures. Regulatory input is awaited before further activities proceed. Jeff's contributions were pivotal in comprehensively understanding and addressing the impacts of the AFFF release and may reduce the client’s financial responsibility.

Technical Director, Optimization of a Groundwater Treatment System for Unexpected PFAS, Confidential Client, Northeast, United States, 2022 - 2024. Jeff played a crucial role in supporting a team tasked with addressing a situation where an existing groundwater extraction and treatment system, designed to manage 1,4-dioxane and chlorinated volatile organic compounds, faced regulatory scrutiny due to elevated PFAS levels exceeding state-specific criteria.

In response, Jeff collaborated with the team to devise an investigation strategy. This strategy incorporated adaptive high-resolution site characterization and PFAS forensics to attribute the majority of PFAS contamination to an upgradient source, thereby limiting onsite responsibility to an isolated area already captured hydraulically.

Jeff also contributed to optimizing the ex-situ treatment system. This involved implementing changes such as switching sorbents and increasing residence time to enhance PFAS removal efficiency and minimize operational and maintenance measures without necessitating significant capital investment. Plans for future upgrades to the system are underway, aiming to further optimize its performance for PFAS removal. Jeff's expertise and strategic input were instrumental in effectively managing and mitigating the PFAS-related challenges faced by the team.

Programmatic Technical Advisor, Remediation Portfolio of Sites within North America, Confidential Client, Various Locations, North America, 2022 - 2024. In his role within a technical quality control and quality assurance capacity, Jeff provided invaluable support to a national team, contributing to the development and implementation of remedial strategies. His responsibilities encompassed a wide array of tasks, including site characterization, data interpretation, and remedial design strategy.

Jeff adeptly tackled challenges both in situ and ex situ, primarily focusing on volatile organic compounds and including specialized attention to 1,4-dioxane.

Throughout his tenure, Jeff demonstrated his expertise by offering technical support in various forms. This included conducting design and calculations for a ZVI PRB, troubleshooting sub slab depressurization applications to mitigate vapor intrusion, and designing and troubleshooting injection processes. Additionally, he played a pivotal role in evaluating co-metabolism techniques across multiple geographical locations to address 1,4-dioxane contamination. Furthermore, Jeff provided crucial support for soil mixing activities aimed at managing residual LNAPL and seep control, as well as contributing to the design of groundwater extraction and reinjection systems.

Technical Director, Technical Support for a Pilot and Full-Scale Engineered Reactive Zone, Confidential Client, Newark, California, 2022 - 2024. In his role supporting an organic substrate injection to aid in situ reductive dechlorination of 1,2-DCA, Jeff played a vital role within the team. He interpreted hydrogeological data, tracer data, and injection implementation data. Jeff also conducted reagent loading calculations to design a full-scale system consisting of hundreds of temporary injection points.

Jeff oversaw the entire implementation process, which involved injecting a sparingly soluble carbon substrate and bioaugmentation into a deep and highly heterogeneous aquifer. This task was challenging due to the specified timeframe, which required meeting an aggressive development schedule to repurpose a neighboring property. Jeff's contributions ensured the smooth execution of this complex project, showcasing his expertise and commitment to achieving project objectives within strict timelines.

Programmatic Technical Advisor, Remediation and Characterization Evaluation, Confidential Client, International (North America, Europe), 2022 - 2024. In his role supporting an international portfolio of managed remediation sites, Jeff provided valuable assistance to the team by conducting technical reviews and evaluations of ongoing remedial systems. Many of these sites had existing remedial systems with varying levels of operation and maintenance. Jeff contributed by offering fresh perspectives on performance evaluation data and suggesting system optimization strategies. He collaborated closely internally and externally to ensure the sites were directed towards the most effective remediation approaches.

Some examples of Jeff's contributions include optimizing an SVE system to reduce shutdown time caused by excess moisture recovery, transitioning away from a legacy SVE system for a submerged carbon disulfide source, and compiling a comprehensive technical knowledge transition data package on perchlorate and chlorate. Through his efforts, Jeff played a key role in enhancing the efficiency and effectiveness of remediation efforts across the international portfolio of sites.

Third-Party Technical Reviewer, Technical Support for Optimizing Strategy, Confidential Client, Northeastern, US, 2022 - 2024. In his role as a technical expert in remediation engineering, Jeff provided support to numerous remedial projects in various capacities. This support encompassed addressing stakeholder concerns by answering specific questions, troubleshooting unexpected results, and engaging in open dialogue with external collaborators to optimize remedial strategies.

Jeff's expertise was demonstrated through several examples of his contributions. These include evaluating the total organic carbon content of a proposed alternative carbon substrate, providing guidance on chemistries for upcoming bench-scale treatability tests, and analyzing geochemical data to explain unintended results. Additionally, Jeff supported focused feasibility evaluations by promptly assessing the relevance of specific technologies to conceptual site models and incorporating recently collected data into existing models to challenge or verify ongoing remedies. Through his efforts, Jeff played a vital role in ensuring the effectiveness and success of remedial projects.

Technical Director, In Situ and Ex Situ Remediation Engineering Support for Chlorinated Volatile Organic Compounds (CVOC) in Soil and Groundwater, Confidential Client, Southwest, United States, 2022 - 2024. At a site in the southwestern United States impacted by DNAPL concentrations of CVOCs within an uninterrupted industrial operation, Jeff provided crucial support to the team. The ongoing remedy included a multi-phase extraction system and downgradient in situ anaerobic biological reductive dechlorination. Jeff conducted technical reviews of groundwater monitoring reports and contributed to strategy development.

Additionally, he assisted with data interpretation during pilot testing for the MPE system and supported the client with industrial wastewater treatment related to the onsite process. After a historical ISB injection (predating Jeff’s involvement) in the downgradient portion of the plume failed to achieve objectives, Jeff inherited the task of redesigning the injection to achieve success and convincing the client and the regulators that trying again was worthwhile. After receiving authorization to try anew, Jeff was integral to the successful field-scale execution of the injection and the positive reductive dechlorination data that followed suit. Through his technical expertise and comprehensive evaluations, Jeff played a key role in advancing the site's remediation efforts.

Lastly, Jeff also assisted in a full historical product assessment to assess PFAS vulnerability and designed and oversaw a field-scale sampling campaign to strategically comply with a regulatory inquiry to investigate potential PFAS-impacted environmental matrices.

Technical Director, Merger and Acquisition Vetting Support, PFAS Issues, Multiple Confidential Clients, International Support within the United States, Europe, and Australia, 2022 – 2024. For multiple deals involving commercial and industrial sites, both national and international, Jeff supported teams by reviewing Phase I and Phase II documents and site histories to identify known and potential PFAS uses in commercial applications. In cases where data was unavailable, he used other forms of evidence to infer PFAS use, such as experience and collaboration with academic experts within the field.

For instances with known PFAS issues, Jeff provided cost estimates to assign value to the liability, covering regulatory management, characterization, interim measures, potential off-site investigation, potential remedial action, and long-term OM&M. The industries involved in these transactions included biosolid facilities, fluoropolymer manufacturing, sorbent regeneration, plastic fluorination, electronic facilities, paper manufacturing, and abandoned properties with historical plating or firefighting training activities. Jeff's expertise was crucial in accurately assessing and managing PFAS-related liabilities for these deals.

Technical Director, Strategic PFAS Support, Multiple Clients, Various Locations within the United States and Europe, 2022 - 2024. Through a retainer-type arrangement, Jeff developed multiple client relationships by serving as a PFAS information resource across a diverse array of issues. His support included periodically sharing relevant literature and current events with associated interpretations, providing on-call assistance for unanticipated PFAS issues, and vetting various PFAS-related claims.

Additionally, Jeff provided knowledge updates to clients’ legal counsel and engaged in Q&A sessions to help them stay informed about developing science and policy related to PFAS.

His comprehensive support and expertise were instrumental in keeping clients well informed and prepared to address PFAS-related challenges.

Technical Director, Evaluating the Life-Cycle Waste Associated with a Product in Support of a Derogation, Confidential Client, European Union, 2023 - 2023. In response to the proposed ban on PFAS by the European Chemical Agency, Jeff aided a team in monitoring the PFAS content of a medical product throughout its lifecycle, from manufacture to disposal. The objective was to assess the necessity of PFAS within the product and contextualize PFAS usage within the broader market landscape. Jeff's support was instrumental in evaluating the role of PFAS in the product and providing perspective on its usage relative to industry norms and regulatory considerations. This scope was well outside Jeff’s normal area of expertise and he was able to demonstrate quick learning skills and management of an aggressive schedule with an outcome that was critical to the client’s business.

Technical Director, Technical Strategy Support for Discovering PFAS Waste, Confidential Client, Anchorage, Alaska, 2023 - 2023. During a routine waste disposal activity, an accidental liquid release took place, prompting the client's contractor to contain the release in a secondary containment tank. Upon request from the regulatory agency, the waste was sampled for PFAS, revealing concentrations that warranted further attention. The team facilitated the client's access to a USEPA-endorsed disposal option (deep well injection) within the state. Jeff's involvement played a key role in swiftly addressing the situation and ensuring compliance with regulatory requirements while mitigating potential environmental impacts.

Third-Party Technical Reviewer, Fate and Transport Assessment of Various Historical Onsite Activities and Downgradient Drinking Water, Confidential Client, Northeast, United States, 2023 – 2023. As part of an inter-consultancy team, Jeff contributed to the evaluation of onsite and offsite PFAS groundwater results. Historical onsite activities were likely responsible for relatively low to moderate PFAS concentrations. Furthermore, PFAS detections were observed in downgradient tap water sampling results. Jeff's evaluation considered the site's conceptual model and onsite PFAS signature to ascertain any potential connections. His insights were instrumental in understanding the distribution and potential sources of PFAS contamination, aiding in the development of effective mitigation strategies.

Technical Director, PFAS Sampling at Los Angeles International Airport with Firefighting Foam Conveyance, Confidential Client, Southwest, United States, 2023 - 2024. Following a client's transition from PFAS-containing firefighting foam to fluorine-free foam, facilitated by rinsing the conveyance equipment with water, Jeff assisted a team in assessing the potential impact of residual PFAS on the replacement foam. This involved designing and executing a comprehensive sampling campaign throughout the firefighting foam conveyance system.

The sampling campaign encompassed collecting samples of the fluorine-free foam concentrate, potable water, residuals within bladders, and swab/wipe samples from within the internal wetted surface area. These samples underwent analysis for an extended list of PFAS, with some also subjected to TOP assay and total organofluorine analyses. Jeff's contributions were integral to ensuring a thorough evaluation of potential residual PFAS contamination and facilitating a smooth transition to fluorine-free foam.

Technical Director, PFAS Soil Treatment at a Manufacturing Facility, Confidential Client, Europe, 2023 - 2024. In support of bench-scale evaluation of soil washing as a technology to remediate PFAS associated with solids and soil, Jeff is actively involved in designing a study to assess various solvents. These solvents have demonstrated the capability or are reasonably expected to separate sorbed PFAS from solids or soils. Jeff's contributions were instrumental in shaping the study design to effectively evaluate the efficacy of soil washing as a remediation technique for PFAS contamination.

Technical Director, PFAS Water Treatment at a Manufacturing Facility, Confidential Client, East, United States, 2023 - 2024. In response to a manufacturing process generating a small daily volume of PFAS-impacted liquid containing ultrashort and short-chain PFAS, Jeff is actively assisting the team in developing a sampling protocol. This protocol aims to accurately characterize the waste volume while concurrently assessing the feasibility of commercially available treatment technologies. The goal is to facilitate an expedited field-scale pilot study and subsequent full-scale design. Jeff's involvement is crucial in ensuring efficient characterization of the waste stream and identifying viable treatment solutions to address PFAS contamination effectively.

Third-Party Technical Reviewer, In Situ Arsenic Remediation Evaluation, Confidential Client, Midwest, United States, 2023 - 2024. Following significant source removal at the commencement of a CERCLA project, substantial concentrations of residual arsenic persisted in groundwater, extending throughout a wide diffuse plume beyond the site boundaries. The project lead spearheaded efforts to develop an interim Record of Decision (ROD), implementing an in situ immobilization plan utilizing sodium persulfate within a high-flow, mildly geochemically reducing aquifer. By leveraging existing data as part of a comprehensive Conceptual Site Model (CSM) evaluation, the team provided guidance on crucial regulatory pathways and explored potentially more sustainable methods for arsenic immobilization. Jeff's leadership played a pivotal role in advancing the project towards effective remediation and sustainable management of arsenic contamination.

Technical Director, Characterization of PFAS in Shallow Soil at a Former and Current Refining Operations, Confidential Client, West, United States, 2023 - 2024. In response to state regulatory requests, Jeff provided crucial support to teams representing the client. He assisted in developing sampling plans that adhered to quality assurance and quality control measures, aligning with draft USEPA Method 1633. In some instances, total organofluorine was integrated as a substitute for TOP assay analysis to fulfill regulatory requirements.

Jeff's support extended to addressing inquiries from legal counsel regarding the management of investigative-derived waste and the interpretation of the data. His expertise played a pivotal role in ensuring compliance with regulatory standards and effectively navigating the complexities associated with regulatory requests. Lastly, Jeff supported a response to a regulatory request for a literature search on PFAS source zone concentrations and PFAS concentrations in precipitation. The response involved conducting a review of literature and summarizing the findings into a nontechnical communication.

Third-Party Reviewer, Soil Vapor Extraction Relevant to 1,4-Dioxane Impacts, Confidential Client, Midwest, United States, 2023 - 2024. Jeff performed an independent technical review of an ongoing SVE operation aimed at addressing a source zone and a distal plume of 1,4-dioxane. His review involved evaluating numerous historical reports, understanding the SVE system operation, and analyzing trends in the analytical data.

Based on his evaluation, Jeff recommended adjusting the extraction well field and implementing extreme SVE measures, including the use of heat and increased airflow, in line with emerging treatment technologies. Additionally, he suggested retrofitting the ex-situ vapor management system to better handle the increased recovery of 1,4-dioxane.

Jeff's recommendations were crucial for enhancing the effectiveness of the SVE operation.

Third-Party Technical Reviewer/Technical Director, PFAS Remediation at Los Angeles International Airport with Firefighting Foam Conveyance, Confidential Client, Southwest, United States, 2024 - 2024. In support of eventual expert litigation, Jeff was asked to perform a third-party technical review of several strategies to clean out PFAS-containing fire fighting foams from foam conveyance infrastructure and remediate nearly 1,000,000 gallons of PFAS-impacted water staged in large underground tanks.

Jeff’s biggest contribution to this project was familiarity with the issue and being able to advise the client’s legal council of what risks existing and how best to mitigate them. Jeff was able to construct a rapid focused feasibility study for available technologies to address the sizable amount of staged water. Jeff’s input led to the incorporation of swab samples being implemented at considerable benefit to the client considering the multiple responsible parties. Then, because of being able to incorporate advanced analytical techniques and understanding historical use and the resultant PFAS signature, Jeff was able to help the client in the initial stages of building a defensible argument detailing which PFAS for which the client would or would not be responsible.

Arcadis (2007 – 2022) Project Engineer, General In Situ Remediation Support, Confidential Client, Williamsburg, Virginia, 2007 - 2009. Jeff played a key role in organizing and synthesizing data for the anaerobic iron reduction zone (IRZ). He contributed to the design of the solid iron addition and assisted in characterizing microbial responses to the remediation approach. Additionally, Jeff worked on integrating sodium hydroxide into molasses injection to mitigate the acidic effects of the molasses. His efforts were crucial in optimizing remedial strategies and ensuring the effectiveness of the treatment approach in addressing contaminants.

Project Engineer, Soluble Carbon Substrate and Tracer Injection Project, Confidential Client, Newark, New Jersey, 2007 - 2010. Jeff actively participated in a diverse range of field and office activities, encompassing groundwater low-flow sampling, well abandonment, molasses flooding, forced-gradient molasses injections, excavation, data evaluation and summary, as well as report compilation. His hands-on involvement in these tasks was instrumental in ensuring the smooth execution of remediation projects and the accurate assessment of environmental conditions. Jeff's versatility and dedication significantly contributed to the success of various remedial activities and project milestones.

Project Engineer, Program Wide Remedial Support for Metals, Explosives, and CVOCs, Confidential Client, Independence, Missouri, 2007 - 2011. Jeff compiled and analyzed historical trends in chlorinated solvents and hydrocarbons to develop a monitored natural attenuation network. He conducted timeframe calculations and implemented statistical methods to determine trends accurately. Additionally, Jeff compiled and wrote a waste management plan as well as a water alternative analysis memorandum.

Moreover, he researched passive sampling devices and conducted cost-benefit analyses to select the most suitable device. Jeff also compiled and wrote the as-built report upon completion of remedy implementation and authored an operations and maintenance manual for remedial activities.

Jeff played a hands-on role in the onsite implementation and execution of large-scale in situ bioremediation (ISB) construction and operation, including programming and logic controls. His comprehensive contributions were instrumental in guiding remedial activities and ensuring successful project outcomes.

Project Engineer, Soluble Carbon Substrate and Tracer Injection Project, Confidential Client, West Palm Beach, Florida, 2007 - 2012. Jeff was instrumental in designing and executing a dual tracer test, leading the subsequent data evaluation and summary report efforts. The insights gleaned from the tracer test were pivotal in designing an enhanced reductive dechlorination (ERD) pilot test. Jeff assumed a leadership role in designing the pilot test and was directly involved in implementing one of the four injections.

Additionally, Jeff managed and coordinated additional injection and performance monitoring events, ensuring the smooth execution of the remediation efforts. He also led the feasibility evaluation for full-scale treatment, actively participating in client and third-party discussions to facilitate informed decision-making.

Furthermore, Jeff took the lead in compiling the final summary report, consolidating key findings and recommendations from the remediation project. His expertise and leadership were critical in guiding the project through various stages and achieving successful outcomes.

Project Engineer/Technical Director, Soluble Carbon Substrate and Tracer Injection Project Multi-Phase Extraction System Operation and Maintenance, Confidential Client, Southington, Connecticut, 2007 - 2015. Jeff was responsible for designing and implementing a dual-tracer, multiple-depth tracer study and evaluating its findings to inform remediation efforts for downgradient enhanced reductive dechlorination (ERD).

He assumed a leadership role in data management, diligently tracking the progress of the multi-phase extraction (MPE) system and evaluating MPE data to propose necessary system modifications.

Additionally, Jeff designed and executed Phase I of molasses injection and contributed to post-injection data analysis. He actively participated in monitoring the MPE system and authored the Phase II Work Plan. Moreover, Jeff worked on incorporating sodium hydroxide into the molasses injection to neutralize the acidic effects of molasses.

His proactive approach and expertise were instrumental in guiding remedial activities and ensuring the effectiveness of the remediation efforts.

Project Engineer, Air Sparge and Soil Vapor Extraction for Ammonium Treatment at the Pennsauken Landfill, Confidential Client, Pennsauken, New Jersey, 2008 - 2010.

Jeff was responsible for designing and executing a variety of start-up tests that contributed to an inclusive pilot study. This included conducting a pumping step test, a quantitative fluorescein dye tracer test, as well as designing and executing an SVE extraction test and an SF6 gaseous tracer test. Additionally, he played a key role in designing and executing an air sparging test.

Furthermore, Jeff actively participated in the operation and maintenance of the system following its start-up. His contributions were vital in gathering valuable data and insights to inform the pilot study and subsequent remediation efforts.

Project Engineer, Soluble Carbon Substrate and Tracer Injection Project, Confidential Client, Boonton, New Jersey, 2008 - 2011. Jeff designed and executed a quantitative fluorescein dye tracer test to assess the hydraulic effects of subsurface injections. Additionally, he authored the Phase I Optimization Plan, strategically positioning the team for the successful implementation of a biological nickel sequestration strategy. Jeff's expertise in designing and executing tracer tests and optimization plans played a crucial role in enhancing the understanding of subsurface dynamics and guiding the implementation of effective remediation strategies.

Project Engineer/Technical Director, Soluble Carbon Substrate and Tracer Injection Project, Confidential Client, Myrtle Beach, South Carolina, 2008 - 2015. Jeff took a lead role in designing and executing a comprehensive quantitative tracer study. He led the data analysis and seamlessly transitioned from the tracer study to an enhanced reductive dechlorination (ERD) pilot study. Subsequently, Jeff designed and executed the ERD pilot study, actively working to integrate the pilot study's performance into the full remedial strategy.

Jeff was instrumental in designing and implementing a full-scale, semi-automated ERD system. He developed a semi-automated distribution system capable of accommodating more than 20 injection wells, each receiving approximately 75,000 gallons per well.

Additionally, Jeff managed pressure and permeability injection performance inhibitors to optimize system efficiency.

Moreover, Jeff played a pivotal role in incorporating sodium hydroxide into molasses injections to neutralize the acidic effects of the molasses. His proactive approach and expertise were instrumental in ensuring the success of the remediation efforts and optimizing the performance of the remedial systems.

Project Engineer/Technical Director, In situ Chemical Reduction via Polysulfide Injection Project, Confidential Client, Tampa, Florida, 2008 - 2018. Jeff conducted a revised, focused feasibility study, refining the understanding of remediation options. He then took charge of designing and managing a pre-design work plan (PDWP), which included conducting geophysical surveys and comprehensive surface and groundwater sampling. Additionally, Jeff oversaw bench-scale treatment experiments using sodium and calcium polysulfide and conducted titrations with sodium hydroxide to assess treatment efficacy.

Jeff also actively participated in regulatory approval discussions and provided valuable input during third-party technical reviews. He played a crucial role in designing and implementing a large field-scale acidity neutralization and chemically induced sulfide precipitation strategy to address elevated concentrations of heavy metals, particularly zinc and nickel. Jeff's multidisciplinary expertise and leadership were instrumental in developing effective remediation strategies and ensuring regulatory compliance.

Project Engineer, Sparingly-Soluble Carbon Substrate and Tracer Injection Project, Confidential Client, West Chester, Pennsylvania, 2009 - 2011. Jeff led the design and implementation of a dual tracer test and subsequent enhanced reductive dechlorination (ERD) strategy in saprolite and underlying bedrock, utilizing fluorescent dyes and a semi-soluble substrate. This comprehensive implementation also involved bioaugmentation with a specialized organism to address a unique constituent.

He spearheaded the inaugural injection and took charge of the data analysis, which played a pivotal role in facilitating the design of the larger system. Jeff's expertise and proactive approach were instrumental in ensuring the success of the ERD strategy and advancing the remediation efforts in challenging geological conditions.

Project Engineer, Chemical Digestion and Abiotic Hexavalent chromium Reduction Project, Confidential Client, Jersey City, New Jersey, 2009 - 2011. Jeff played a key role in the design and preparation for an advanced pilot demonstration of in situ chromate ore processing residue (COPR) treatment. He oversaw the implementation of the field pilot test, which included the deployment of 5,000 gallons of sulfuric acid, six tons of ferrous sulfate heptahydrate, six tons of dextrose, and corn silage inoculums. The pilot test involved in situ mixing within a 20-foot-long, 17-foot-wide, and 15-foot-deep cavity.

Additionally, Jeff was involved in coordinating and evaluating post-treatment analysis, which encompassed mineralogical characterization and high-resolution spectroscopy. His contributions were instrumental in advancing the understanding and effectiveness of in-situ COPR treatment methods.

Project Engineer, Soluble Carbon Substrate and Tracer Injection Project, Confidential Client, Phoenix, Arizona, 2010 - 2014. Jeff played a pivotal role in designing and executing the inaugural carbon substrate injection project at 7th Avenue and Bethany Home Road, situated within the Water Quality Assurance Revolving Fund (WQARF) site. This initiative aimed to address chlorinated volatile organic compounds (CVOCs) in a deep aquifer as part of the feasibility study's development.

The design phase encompassed a quantitative tracer test to measure groundwater velocity and flow direction, crucial for informing the larger design of in situ biological treatment following the feasibility study. During implementation, Jeff oversaw his own design of the physical injection process, including the construction of conveyance structures.

Additionally, he conducted comprehensive data collection and evaluation, synthesized findings into a comprehensive report, and presented results and conclusions to stakeholders. Jeff's expertise and leadership were instrumental in successfully executing the project, paving the way for effective remediation strategies within the WQARF site.

Project Engineer/Technical Director, In situ and Ex situ Remediation of Petroleum Hydrocarbons Program Wide, Multiple Confidential Client, Nationwide, US, 2010 - 2016. Jeff played a pivotal role in supporting multiple remediation programs for oil and gas clients, overseeing hundreds of small-scale active remediation projects across retail stations, refineries, and bulk terminals. These remediation efforts encompassed a range of physical removal strategies such as air sparging/soil vapor extraction (AS/SVE), high vacuum extraction (HVE), dual phase extraction (DPE), and multi-phase extraction (MPE), as well as in situ chemical and biological strategies including in situ chemical oxidation (ISCO) and in situ bioremediation (ISB).

In his capacity, Jeff was responsible for implementing, designing, and executing remediation projects. This involved comprehensive data evaluation, regulatory engagement, negotiation of institutional controls and land use restrictions, and the development of low-cost innovative alternatives across multiple states nationwide.

Jeff's leadership was particularly evident in his involvement in numerous ISCO and ISB implementations, where he led initiatives covering advanced oxidation processes (AOPs), both in situ and ex situ, for addressing petroleum hydrocarbons and fuel oxygenates. His contributions were instrumental in the successful execution of remediation strategies and the attainment of project objectives for oil and gas clients.

Project Engineer, Biowall and Soil Source Area Project, Confidential Client, San Jose, California, 2011 - 2014. Jeff spearheaded the design of an in situ permeable reactive barrier utilizing solid and semi-soluble organic substrates to address elevated concentrations of perchlorate and chlorinated volatile organic compounds (CVOCs) in groundwater. He also led data evaluation efforts to support optimization initiatives and ongoing site remediation activities.

Furthermore, Jeff conducted a large-scale cost comparison feasibility study covering multiple soil source treatment technologies to project life cycle costs. His contributions were integral to informing decision-making processes and optimizing remediation strategies for effective long-term outcomes.

Project Engineer, In situ Soil Stabilization with ZVI and Sparingly Soluble Carbon Substrate and Tracer Injection Project, Confidential Client, Mexico City, Mexico, 2011 - 2014. As the lead in-situ remediation design engineer, Jeff spearheaded a significant in-situ soil stabilization (ISSS) project aimed at treating dense nonaqueous phase liquid (DNAPL) using deep soil mixing and zero-valent iron (ZVI). His role involved developing the design, which included collaborating with an academic university to conduct bench-scale column testing to evaluate various ZVI products and mix designs.

Additionally, Jeff oversaw the implementation of a pilot-test cell to validate the effectiveness of the technology.

Jeff designed an injection-based enhanced reductive dechlorination in-situ reactive zone to address groundwater degradation of the chlorinated solvent source area, showcasing his expertise in innovative remediation approaches. His leadership and technical prowess were instrumental in advancing the remediation project, ensuring the successful treatment of DNAPL contamination and groundwater remediation objectives.

Project Engineer/Technical Director/Third-Party Technical Reviewer, International Technical Support, Multiple Confidential Clients, Canada, Mexico, Brazil, United Kingdom, France, Italy, Australia, 2011 - 2022. Jeff served as a technical resource, offering support to various multinational corporations (MNCs) across diverse sectors. He provided technical remediation services, both in situ and ex situ, addressing a wide array of constituents in various matrices. Jeff's role encompassed offering technical opinions, sharing experiences, conducting third-party design audits and reviews, and preparing publication materials. His expertise extended to developing and disseminating cutting-edge technical best practices, designs, concepts, and content, ensuring clients received innovative and effective solutions.

Jeff played a pivotal role in guiding MNCs through complex remediation processes, leveraging his technical acumen to address diverse environmental challenges. His contributions were instrumental in facilitating the implementation of effective remediation strategies, underscoring his proficiency in providing comprehensive technical support across different industry sectors.

Project Engineer, Sparingly Soluble Carbon Substrate and Tracer Injection Project, Confidential Client, Hollister, California, 2012 - 2014. Jeff was responsible for designing and implementing an in situ remedial interim action aimed at treating elevated concentrations of perchlorate using a semi-soluble substrate through biological reduction.

Additionally, he designed and implemented a quantitative tracer test utilizing fluorescent dyes to evaluate challenging hydrogeological conditions. Jeff successfully achieved lateral distribution of reagents by employing injection and extraction techniques for circulation purposes.

Project Engineer/Technical Director, Sparingly Soluble Carbon Substrate Injection Project, Confidential Client, Charlotte, North Carolina, 2013 - 2015. Jeff led a feasibility evaluation to screen in situ remedial technologies for remediating chlorinated volatile organic compounds (CVOCs) and 1,4-dioxane through co-metabolism and natural attenuation within a partially weathered rock aquifer located in the Piedmont region.

Following the success of the pilot test, Jeff played a keyrole in designing and implementing the full-scale remedy. Currently, the project has transitioned into the performance monitoring stage, marking a significant milestone following the successful implementation of the remedial solution. Jeff's leadership and expertise were instrumental throughout the entire process, ensuring the effective remediation of the site's contaminants.

Project Engineer/Technical Director, In situ Soil Stabilization with Ferrous Iron Project, Confidential Client, Central Coast, California, 2014 - 2016. Jeff played a crucial role in supporting the design of a deep soil in-situ soil stabilization (ISSS) treatability study for remediating hexavalent chromium using ferrous sulfate heptahydrate. He led and executed the laboratory-scale treatability test, meticulously establishing the design parameters essential for the project's success. Additionally, Jeff authored the basis of the design document, providing a comprehensive framework for the implementation phase.

He offered office-level support throughout the project's execution, ensuring seamless coordination and facilitating the successful implementation of the remediation strategy.

His efforts contributed to achieving uncontested regulatory closure following confirmation soil sampling, underscoring his expertise in remediation design and execution.

Project Engineer/Programmatic Technical QA/QC Manager, Program Wide In situ Remediation Technical Support, Confidential Client, Central Coast, California, 2014 - 2022. Jeff played a pivotal role in providing programmatic technical strategy and remedial alternative support for a sizable 110-site restoration portfolio on the Central Coast in California. His responsibilities encompassed technical staffing, health and safety oversight, and quality control, ensuring the efficient execution of remediation activities across multiple sites. Furthermore, Jeff actively contributed to site-specific design and strategy development within the CERCLA framework, tailoring remedial approaches to address diverse environmental challenges. His expertise extended to implementing innovative remedial strategies, such as propane-mediated co-metabolic bioremediation of 1,4-dioxane, in situ soil stabilization with zero-valent iron for dense nonaqueous phase liquids for chlorinated volatile organic compounds, anaerobic biological remediation, and conventional earthwork, effectively advancing environmental restoration objectives.

Third-Party Technical Reviewer, Various Technologies, Various Clients, United States and International, 2015 - 2022. Across diverse market sectors, Jeff delivered independent third-party reviews, often termed "deep dives," for multinational clients (MNCs). These reviews were tailored to address various objectives, such as identifying optimizations, integrating current best practices into historical operations, troubleshooting existing remedial strategies, or supporting cost reserve reviews.

These projects typically entailed extensive document review and research (i.e., due diligence), complemented by independent technical evaluations, innovative insights, and collaborative stakeholder engagement. In two instances, Jeff collaborated with industry experts as part of a panel to assess the strengths and weaknesses of remedial strategies, providing valuable guidance for decision-making processes. Jeff's contributions were instrumental in ensuring comprehensive assessments and informed decision-making for MNCs across different sectors.

Project Engineer/Technical Director, In situ Chemical Reduction via Polysulfide Injection Project, Confidential Client, Westminster, Massachusetts, 2016 - 2018. Jeff spearheaded the design and implementation of a large-scale calcium polysulfide injection aimed at mitigating cadmium impacts in groundwater. This comprehensive implementation involved real-time data evaluation and assessment to ensure the effectiveness of the injection.

In addition to overseeing the implementation process, Jeff played a key role in designing the project by conducting high-level geochemical modeling. He provided essential support to a design and review team, facilitating collective agreement on the approach.