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James Packman

Hydropower Licensing and Compliance

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To help clients achieve stringent water quality goals, Geosyntec provides rigorous assessment and modeling services to assess the sources and factors that affect the delivery of critical pollutants across watersheds. Through our comprehensive studies and analyses, we provide technically defensible tools and approaches that can be used in the development of Total Maximum Daily Load (TMDL) calculations and watershed protection plans. In addition, we frequently turn to Use Attainability Analyses to examine site-specific water quality criteria that affect attainability goals under natural, human-caused, and economic conditions. Our hydrodynamic and water-quality models integrate inputs from point and nonpoint sources to support our engineers and scientists as they study impacts on water quality in receiving water. These models allow us to understand the assimilative capacities of a given body of water, propose best management practices that can affect pollutant impacts, and predict the time required for a system to recover after being altered. Using watershed studies, water quality monitoring, and hydrological and hydrodynamic modeling, we also can assess compliance with local, state, and federal water quality standards. Using all this information, we are better able to evaluate the magnitude, frequency, and duration of impacts of a wide variety of pollutant sources. Our practitioners offer extensive experience with geographic information system applications for spatial analysis, planimetric and thematic mapping, and data representation. We employ watershed models including the Watershed Characterization System (WCS), Better Assessment Science Integrating Point and Nonpoint Sources (BASINS), and the Watershed Assessment Model (WAMView). We also employ the Water Quality Analysis Simulation Program (WASP), the Environmental Fluid Dynamics Code (EFDC), and the Stream Water Quality Model (QUAL2K) for hydrodynamic and water-quality models. Our practitioners are at the forefront of policy analyses, regulatory compliance, and technology applications that promote sustainable water resources management and ecosystem restoration. We have extensive experience helping local governments develop and negotiate long-term control plans for combined sewer overflows, National Pollutant Discharge Elimination System (NPDES) permits, and consent orders. We also comment on Clean Water Act issues at the state and national level, including the development of new recreational use criteria for water bodies across the county and for the U.S. Environmental Protection Agency's new framework for integrated planning for wastewater and stormwater.

Pharmaceuticals in the Environment (PiE)

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Lead Practitioners Nothing Found

Sediment Assessment and Remediation

2026-07-03T07:28:46-06:00February 12th, 2015|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Lakes, rivers, reservoirs, and marine environments, especially those in urban waterfront and coastal areas, often have contaminated sediment and surface water and stressed biota from decades of industrial and commercial activities. Sediment contamination can include metals, crude oil and refined petroleum compounds, polynuclear aromatic hydrocarbons (PAHs), pesticides, per- and polyfluoroalkyl substances (PFAS), and polychlorinated biphenyls (PCBs). Because contaminated sediment sites present complex challenges, site evaluation and cleanup are expensive and can take several years to implement, and the metrics for remedy effectiveness are not often well defined.

Environmental Forensic Studies

2026-04-23T10:12:07-06:00March 28th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , , |

Drawing on decades of experience in chemistry, biochemistry, ecology, and biology, our engineers and scientists conduct field and laboratory investigations to identify or characterize biological and chemical challenges impacting soil, sediment, groundwater, surface water, and waste.

Low Impact Development, Green Infrastructure, Sustainable Practices

2026-04-23T13:00:13-06:00March 28th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Low impact development (LID) aims to mimic natural hydrology by using small-scale, decentralized techniques that infiltrate, evaporate, and transpire rainwater. The guiding principles of LID are to reduce imperviousness, disconnect imperviousness, conserve natural resources and areas, maintain natural drainage courses, and minimize clearing and grading. Geosyntec practitioners have designed and integrated a number of innovative system architectures to help clients meet each of these goals. Through the use of the latest green infrastructure (GI) and by implementing new sustainable practices, many of our clients have addressed challenges that previously were intractable, unachievable, or not cost effective using conventional passive solutions. We provide specialized stormwater and watershed management services for private facilities, large developers, stormwater utilities, and municipal agencies throughout the United States and have implemented many of the nation's first GI projects. Our stormwater management specialists form one of the leading practices in the country and include individuals whose applied research earned the American Society of Civil Engineers Civil Engineering State-of-the-Art Award and similar accolades at the state and regional level. Our firm's efforts in LID are geared to lower costs for stormwater infrastructure and maintenance, improve surface water quality and groundwater recharge, and design an attractive, ecologically functional landscape. We also have incorporated LID approaches into new development and retrofit projects to improve control of both quantity and quality of stormwater. Geosyntec personnel continuously shape the state of the practice with projects that involve original research, development, and application of LID techniques. Our engineers and scientists are represented on the Board of Directors of the Low Impact Development Center, a nonprofit organization dedicated to the advancing LID technology, and maintain joint research projects with civil engineering faculty at leading academic institutions.

Discharge Permitting and Receiving Water Studies

2026-04-23T14:52:37-06:00March 28th, 2014|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Geosyntec provides comprehensive water-quality permitting and receiving water-assessment services. Our services include the National Pollutant Discharge Elimination System (NPDES) permitting negotiations and technical support for wastewater and industrial wastewater treatment plant discharges, groundwater discharge, combined sewer overflow systems, and stormwater management. Our water-resources practitioners also specialize in water-quality assessments in large watersheds, rivers, and reservoirs. Many of these projects are multi-year efforts where our services have eliminated unnecessary treatment works, saving clients significant costs. Antidegradation and Water-Quality Reviews Antidegradation and water-quality reviews are essential for permitting wastewater discharge expansions. Regulators use these reviews to determine treatment-system requirements and effluent limitations. Permittees must prepare the review submittals for new or expanded treatment plants. These reviews can range in complexity from basic qualitative evaluations to complex modeling scenarios using actual stream data. Using our thorough understanding of antidegradation and water-quality review processes,we help clients select the most appropriate review approaches when pursuing new or expanded wastewater treatment plants.  Regulators with the US Environmental Protection Agency (USEPA) and state regulators emphasize water-quality-based permitting of municipal, domestic, and industrial wastewater discharges.They do this to address water-quality concerns and attain water-quality standards within receiving streams, rather than basing permits on technology-based limitations that may not adequately protect the specific water resource. Waste-Load Allocation Geosyntec's water-quality-based permitting and waste-load allocation studies may range greatly in complexity, and regulatory involvement and negotiations are critical elements within such projects. Waste-load allocations may be derived using a variety of approaches, and water-quality-based permit limits are derived after determining the most appropriate and defensible waste-load allocation.  Our engineers and scientists use state-of-the-art field monitoring approaches to calibrate water-quality models and establish appropriate water-quality criteria. We have saved our clients several millions of dollars in infrastructure investments by investigating conservative permit assumptions and ensuring a sustainable balance between resource needs and practical budget constraints.

Natural Resource Monitoring

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Geosyntec uses biological assessment and monitoring to create an accurate picture of the affected environment. Our services reliably evaluate the health of streams, rivers, lakes, and ocean environments. In addition, we can offer a less expensive alternative to complex chemical testing programs. Relying on deep experience, our team evaluates the ecological health of a given environment to show how organisms integrate the effects of varied stressors at your site over time. This means Geosyntec can characterize long-term ecological issues and understand the status of highly valued biological communities. By examining a variety of species, their life stages, their survival, and their health, Geosyntec deciphers complex relationships among habitats, bioregions, and ultimately, water and sediment quality. Geosyntec has experienced biologists who efficiently conduct fish and invertebrate collection for both site investigations and NPDES-permit compliance. We also partner with industry-leading laboratories to analyze samples, compile metric scores and data into a project database, and use geographic information system capabilities to define spatial relationships and ensure data consistency and comparability. Geosyntec's biological monitoring services include fish tissue collection for analysis of chemicals of concern; fish population and macroinvertebrate/plankton community studies; fish-kill investigations; and sediment infaunal invertebrate studies. We also conduct habitat inventories and assessments; sediment and water quality toxicity testing; ecological risk assessments; and Natural Resource Damage Assessments. Our practitioners compile environmental impact statements for compliance with National Environmental Policy Act requirements and consult with clients on Clean Water Act (CWA) Section 404 wetland permitting, Section 401 water quality certification, and threatened and endangered species surveys related to the Endangered Species Act (ESA) and Section 7 requirements. For more than a dozen clients, Geosyntec has monitored the concentrations of chemicals found in fish tissue over many years. Often, the fish community is exposed to chemicals via direct or indirect uptake from contaminated sediments. By monitoring the fish tissue concentrations over time, the effectiveness of an environmental remedy can be evaluated. Additionally, biota-sediment accumulation models can be developed and refined to support informed management decisions. This has been used for both active remedies (like dredging) and passive remedies (like MNR). These monitoring data provide our clients and the regulatory agencies with an accurate picture of the affected environment.

Contaminated Media Investigations & Assessments

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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

Environmental Permitting and Compliance

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Geosyntec provides a diverse portfolio of services to our public and private clients to improve their environmental and financial performance, manage risk, and reduce environmental liabilities consistent with their financial and stewardship goals. Our professionals have significant corporate, consulting, and government work experience and specialize in each of these sectors. Accordingly, we understand our clients' challenges and needs and provide appropriate solutions that consistently reduce risk exposure and add value to the bottom-line. Geosyntec delivers solutions in many areas of environmental compliance support, auditing, management systems, environmental studies and cleanup, infrastructure engineering and design, and natural resources assessment and restoration. We have completed nearly 10,000 projects worldwide with an outstanding and always improving safety record. Our experience delivers on the potential of innovative applications of proven and emerging technologies. Dynamic environmental laws, regulations, standards, and guidance demand a proactive approach in order for businesses to minimize environmental risk while maintaining economic benefit. Geosyntec's Environmental Management practitioners help our clients manage existing and potential liability associated with environmental, health and safety issues. Our clients have included utilities, government agencies, and companies in agriculture, manufacturing (chemical, food products, and technology), transportation, waste management, retail, and property development/management. Geosyntec assists clients with a variety of environmental compliance services. These services range from proactive to defensive/corrective, including the following: NPDES permitting support Air permitting support Toxics Release Inventory (TRI) reporting RCRA program development and implementation Environmental auditing program development and implementation Environmental performance measurement

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