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Anthony Goh

Pharmaceuticals in the Environment (PiE)

2026-07-02T07:32:56-06:00March 27th, 2026|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Lead Practitioners Nothing Found

Overview of Contaminated Site Assessment and Cleanup

2026-08-18T14:34:36-06:00November 12th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec practitioners rank among the world's top professionals in providing site assessment and remediation services at a wide range of impacted sites using innovative technologies and solutions that consistently advance the state of the practice. Through our use of innovative technologies and solutions, we provide our public and private sector clients with a wide array of services to address their toughest challenges. Our contaminated site practitioners guide our clients through a specialized remediation plan, consult on regulatory strategies, and develop a comprehensive cleanup approach. We can address numerous types of media, including contaminated soils, sediments, and groundwater. Advancing the State of the Practice Geosyntec's practitioners are pioneers in site assessment and remediation. Our senior practitioners have developed and authored guidance material and courses for local, state, and national agencies and associations on remediation techniques and technologies. Working with the Interstate Technical Regulatory Council, Geosyntec practitioners taught a training course on vapor intrusion, including mitigation options for the development of vapor-impacted brownfield sites. Geosyntec practitioners also wrote the guidance document on evaluating, optimizing, or ending post-closure care at impacted sites, including brownfield sites, and developed a patented approach for sub-slab vapor migration mitigation allowing residential, commercial, and industrial development on sites impacted by vapor intrusion. Our specialists routinely collaborate with prominent national researchers from academia and government agencies to provide innovative and defensible strategies for sites with contaminated sediments. For example, we collaborated with the United States Geological Survey (USGS) to remediate chlorinated solvent-contaminated marsh sediments by applying a bioreactive mat system embedded with a dehalogenating microbial consortium, a technology Geosyntec helped develop. This project and partnership earned our client recognition as a finalist for the Service to America Medal awarded by the Partnership for Public Service. Through a collaborative research project with the University of Florida, Geosyntec professionals helped develop the FLUCL software package for the Florida Department of Environmental Protection. This software is used to calculate exposure point concentration statistics in risk assessment and was the first of its kind to contain algorithms for censored datasets. FLUCL has received endorsements from several United States Environmental Protection Agency regions and the California Environmental Protection Agency. Geosyntec scientists also pioneered the use of genetic molecular tools to characterize microbes in environmental media and are engaged in applied research and development with top academic institutions around the world, including the University of Toronto, Cornell University, and the Georgia Institute of Technology.

Overview of Waste Management Planning, Engineering & Design

2026-04-29T11:39:03-06:00November 12th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec is a recognized leader in waste containment facility permitting and design. From concept to implementation, we assist our clients in achieving efficient, safe, and secure containment of their regulated wastes that require land disposal. Our practitioners assist our clients in increasing commercial viability, achieving and maintaining compliance, and ensuring that short- and long-term needs are met for new and existing sites and projects. We are experienced in the permitting, design, and construction of expansions and closures of: Municipal solid waste (MSW) landfills Hazardous waste landfills Coal combustion residual landfills Construction and demolition waste landfills Radiological and mixed waste landfills Tailings impoundments Mine waste rock piles and dumps Our waste containment practice specializes in addressing the most complex and challenging projects through our innovative technologies and designs. Our practitioners assist clients with permitting greenfield sites and existing site expansions, maximizing disposal capacity, and solving complex site challenges.   Our practitioners also provide investigation, design, permitting, and construction oversight for on-site disposal facilities for cost-effective, safe on-site disposal of soils, sludges, and miscellaneous debris with a broad range of contaminants, including mercury, PCBs, and volatile and semi-volatile organic compounds.

Solid, Industrial, and Hazardous Waste Disposal Facilities

2026-04-21T07:59:21-06:00March 28th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec is a recognized leader in helping our clients achieve safe, secure containment of their regulated wastes requiring land disposal.  We provide engineering and related services for siting, permitting, design, construction management/quality assurance, environmental monitoring, and closure/post-closure care. We are experienced in the design of: Municipal solid waste and construction and demolition debris disposal facilities Coal combustion residuals disposal facilities Industrial waste disposal facilities Hazardous waste disposal facilities The applied research of our leading practitioners for U.S. EPA, DOE, and industry associations has defined the state-of-the-practice for more than 30 years.  As a result, Geosyntec is often first-to-field with emerging technologies related to the secure, safe containment of our nation’s solid, industrial, and hazardous wastes.  Many of the waste containment system design methodologies that we pioneered in the 1980s, 1990s, and 2000s are today the standards of practice in the field. Using experience gained on projects at more than 400 facilities nationwide, we develop practical approaches to design and construction challenges associated with liner and cover systems, leachate and gas management, construction/waste filling/closure sequencing, and geotechnical and earthquake stability. We apply advanced concepts in geotechnical engineering and ground improvement methods to design foundations for sites that have poor structural characteristics or significant geological hazards. We have also pioneered the use of earth retention systems in the design of landfills to maximize airspace volume within limited property boundaries. We are working with our clients to develop approaches for the next generation of integrated waste management practices.  Emerging processes that take advantage of currently available technologies include renewable energy development, enhanced waste separation and processing, enhanced waste degradation through active biological processes, and resource recovery. Integration of conventional and emerging practices is often necessary to meet the complex demands of a community. We work with clients to develop strategic and tactical plans to solve their future MSW management challenges and meet cost, compliance, and service objectives.

Facility Decontamination and Decommissioning

2026-08-20T12:26:42-06:00March 28th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , |

Geosyntec's engineers and scientists aid many clients in the decommissioning and remediation of power plants, refineries, military facilities, NASA storage and assembly areas, and chemical manufacturing and distribution facilities. We also consult on the remediation and closure of dozens of industrial waste and solid waste containment facilities regulated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and the Resource Conservation and Recovery Act (RCRA). Notably, Geosyntec practitioners were key members of the Closure Project Team for the U.S. Department of Energy's (DOE) Fernald Feed Production Center in Ohio, tasked with overseeing the removal of 31 million pounds of processed nuclear product, decontamination and demolition of 223 buildings, and removal of 8,900 cubic yards of radium-bearing waste. For this project, Geosyntec designed a hallmark on-site disposal facility (OSDF) to safely contain low-level radioactive waste and hazardous waste generated during the demolition and site cleanup process. We were selected as the engineer-of-record for the permitting, design, and quality assurance/quality control (QA/QC) services during construction, filling, and closure of the OSDF. The result is a secure 65-acre, eight-cell waste containment facility containing 2.95 million cubic yards of materials and capable of lasting at least 200 years, and up to 1,000 years to the extent achievable with available technology. At Fernald, Geosyntec redefined how modern containment systems could be used to securely dispose of hazardous and low-level radioactive waste. We have since been tasked with the design and construction of new OSDFs at both the DOE's Portsmouth and Paducah Gaseous Diffusion Plants in Ohio and Kentucky, respectively. In addition, Geosyntec engineers and scientists have contributed heavily to asset retirement and conversion services for the electric power industry. For a former waste-to-energy generating facility in Florida, we prepared the preliminary remedial design for a 60-acre site regulated under CERCLA. Our services included construction management, third-party construction quality assurance oversight, and laboratory testing services as well as oversight of the demolition of two incinerators, a 200-foot water tower, and miscellaneous process and administrative buildings. Our optimization of the remedy led to minimized construction costs and approval of design modifications, resulting in client cost savings in excess of $1.5 million. We also provided valuable assistance in negotiating construction claims, which resulted in additional client savings. For another client undergoing a large-scale renovation and expansion of a coal-fired power plant, Geosyntec performed pre-demolition hazardous materials assessments and coordinated the facility's coal handling/processing structure demolition. We subsequently provided implementation design, bidding support, oversight, and documentation of soil remedial action plans, coordinating it with demolition and renovation/expansion activities. By supporting the client and demolition/ construction contractors with time-critical waste profiling, segregation, and management and by acting as regulatory liaison, we helped maintain the project's crucial renovation and expansion schedule. Geosyntec worked with the City of Coral Gables, Florida to prepare the design and bid package for the demolition of a waste-to-energy incinerator and 50-ft tall stack that contained elevated concentrations of lead, arsenic, and dioxins. Our significant experience in the assessment, characterization, and ultimate disposal of incinerator ash helped our client remove the stigma that the site once had in the community and positioned the property for commercial redevelopment. Geosyntec has provided single-sourced services for clients planning to decommission and demolish industrial manufacturing facilities with the intent to obtain regulatory closure in support of the future sale of the property. At these facilities, Geosyntec performed site characterization, decommissioning, decontamination, hazardous building material assessments, oversight of abatement, development of bid documents and bid support, construction management, construction quality assurance, and oversight of scrap/asset recovery. Single-sourced services reduced the clients cost and time to obtain closure by requiring fewer contracts to administer and fewer consultant/contractor interfaces to manage. The coordination of the work is placed with one consultant - Geosyntec. At a former catalyst manufacturing facility in Southern California that produced catalyst for use in petroleum refining, Geosyntec assisted the client in preparing the site for sale as part of their plan for consolidating their manufacturing capabilities into one facility. Geosyntec performed decommissioning and decontaminating support, hazardous building material surveys, oversight of abatement and demolition, Phase I and Phase II site characterization and soil remediation, and obtained regulatory closure.  After Geosyntec completed the work and obtained the regulatory closure, the client sold the property as planned.  Geosyntec has successfully provided similar services to other industrial clients for facilities that include former electrical transformer manufacturing, oil and chemical refining and processing, and aerospace fastener manufacturing. One measure of the value of Geosyntec's services is the repeat business with clients. For example, the client with the catalyst manufacturing facility in Southern California contracted with Geosyntec to perform similar, additional decommissioning and demolition services at their Northern California manufacturing plant.

Contaminated Media Investigations & Assessments

2026-09-24T10:14:27-06:00March 27th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec applies reliable and innovative approaches to contaminated media investigations and assessments. We help clients address a wide array of known and emerging contaminants in soil, sediment, and groundwater. We also conduct site evaluations and discover the sources of air emissions, subsurface vapor intrusion into buildings, and contaminants in surface waters. Our assessment specialists include some of the most respected and sought-after professionals in the environmental remediation industry. They possess the experience and technical skills to conceptualize and implement all aspects of contaminated media assessments and remediation programs. Using a multidisciplinary approach, Geosyntec brings together nationally recognized, in-house specialists in civil and geotechnical engineering, ecology and biological sciences, risk assessment and applied toxicology, and earth sciences to address the complex issues associated with contaminated media. Our contaminated site practitioners guide our clients through specialized remediation plans, consult on regulatory strategies, and develop comprehensive cleanup approaches. We address numerous types of media, including contaminated soil, sediment, and groundwater. Contaminated Media Services

Remediation System Operation & Optimization

2026-06-30T09:20:29-06:00March 27th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

The operation of expensive remediation systems, sometimes for decades, is often the result of heterogenous or fine-grained geology, fractured bedrock, restrictive criteria that are regulated down to the part per trillion level, and contaminant mass that is caught up in fine-grain soil making painfully-slow diffusion the primary mass transfer mechanism. Our practitioners are adept at expediting investigations and accelerating site closure through a wide range of innovative technology applications. At many sites with languishing remedial systems, optimization is an option that may improve mass recovery, but it may not be the ideal solution, if contaminant source zones have been inadequately characterized. Geosyntec has repeatedly demonstrated that high-resolution characterization of these zones, followed by targeted source zone removal, can optimize remedy performance and lead to the safe closure of the system. Geosyntec is frequently called upon to critically evaluate and optimize existing systems, providing solutions that range from modification to the unit operations of an ex situ treatment train to reduce chemical and energy costs as influent concentrations decrease; or incorporating flexibility into injection systems by alternating passive and active flow fields or adding additional wells in targeted source zones. When performing remedial design of a new system, Geosyntec applies these same principles of future optimization at the forefront of the design process, positioning the client for long-term savings opportunities. System optimization includes a critical evaluation of the performance monitoring plan. At large sites with sprawling networks of monitoring wells, often sampled quarterly or more, Geosyntec has successfully utilized statistical models to develop streamlined monitoring networks that effectively monitor the system, are defensible to the regulatory community, and can save clients significant monitoring costs. Decades of experience in the implementation of new, emerging, and conventional technology allows our practitioners to frequently bridge the gap between the development and "first-to-field" stages of environmental solutions. In addition, Geosyntec's in-house laboratories provide physical and chemical testing that effectively monitors the performance of treatment processes, technologies, and systems. Our technical evaluation facilities regularly conduct chemical oxidation and bioreactor tests; examine the presence of organics and inorganics in wastewater; evaluate the effectiveness of remediation products; simulate the performance of conceptual designs; and analyze the likely behavior and end point of various treatment processes. Our lab teams communicate regularly to share knowledge and direct internal and external client projects to the most appropriate technology solutions. Working together, Geosyntec's engineers, scientists, and innovators leverage the power of chemical, physical, geological, and biological processes and reactions to detoxify, immobilize, and eliminate exposure risks to a wide range of chemicals in the environment, especially those difficult to treat by more conventional means. Geosyntec uses a combination of standard and developing technologies to create solutions at burdensome sites. These solutions often displace systems that have been running for many years and for which closure may have seemed impossible.

Radiological Waste Management and Disposal Facilities

2026-06-03T11:14:05-06:00March 27th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec's practitioners work with regulators and stakeholders to develop solutions for a range of radiological challenges, including waste management and disposal, waste packaging and transportation, facility decontamination and decommissioning (D&D), and environmental restoration for government and private clients. Our established credibility with regulators contributes to securing the approvals needed to move demanding projects forward in a timely manner. Engineering and designing containment facilities for the safe, long-term disposal of radiological and mixed (radiological and hazardous) wastes challenges the norms in terms of technology demonstration, design life, and material performance. The extremely long half-lives of many radionuclides present in these wastes mean that the radiological characteristics of these materials will be persistent over long periods of time. This requires that they be disposed and managed in a controlled manner as a disposal facility ages. The levels of radioactivity within the waste disposed of in a facility also need to be considered during the long-term evaluations, or performance assessments. Geosyntec has conducted performance assessments under several different regulatory settings to demonstrate that the disposal facilities are protective of human health and the environment, assessing both internal risks as the waste decays within the disposal facility and external to disposal facilities as the performance of the landfill construction materials age and are modeled at very long times (e.g., hundreds to thousands of years) to eventually transmit leachate and contaminants to the underlying geology. The results of the performance assessments are crucial towards our clients understanding of their design choices and future liabilities. When the U.S. Department of Energy (DOE) decided to decommission its nuclear weapons complex facilities at Fernald, Ohio, they relied on our expertise to design and provide construction quality assurance services for the low-level radioactive waste disposal facilities built to contain impacted soils and demolition debris. Geosyntec met aggressive DOE schedule requirements and delivered award-winning, state-of-the-art facilities with a design life of at least 200 years using currently available technology. In doing so, we helped DOE and its contractor teams complete site closure years ahead of their original schedules, and billions below the original estimate. When DOE decided to decommission its nuclear weapons complex facility at Portsmouth, Ohio, Geosyntec was again tapped to provide design and permitting for the on-site waste disposal facility. Geosyntec has also successfully assisted clients in the related practice area of management and containment of by-products and wastes that contain naturally occurring radioactive materials (NORM) associated with ore processing residuals. For example, a multinational company owned a processing facility with NORM and Technologically Enhanced Naturally Occurring Radioactive Material (TENORM) containing uranium and thorium impacts to buildings, equipment, and process area soils. Geosyntec assessed and characterized site conditions, then designed a secure, on-site disposal facility, dismantled ore processing equipment, and impacted soils. Our design addressed the liner and cover containment systems; sequencing for constructing, filling, and closing the facility; facility operation and maintenance; and post-closure environmental monitoring. The requirement to consider a performance over a period of more than 10,000 years led to significant challenges in design and modeling of the disposal facility. As the general contractor for the project, we implemented a stringent construction and radiological safety program. This included establishing and operating an on-site radiological laboratory capable of measuring gross alpha/beta activity and gamma spectroscopy on debris, impacted soils, airborne particulates, and water. When complete, over 11,000 loads of excavated soils and plant debris (or 75,000 cubic meters) were transported and disposed of in the facility and more than 87,000 drums were retrieved, processed, transported and disposed. The project was completed with more than 1 million man-hours without either a lost-time accident or a radiological incident, a testament to the importance of safety and the safety culture that Geosyntec has established.

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