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Logan Uselman, Ph.D., P.G.

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Logan Uselman, Ph.D., P.G.
Consultant

Logan Uselman, Ph.D., P.G.

Consultant (385) 955-5180 Salt Lake City, UT luselman@integral-corp.com

Dr. Logan Uselman is a hydrogeologist and project manager with a focus on large legacy contamination sites and regulatory tracking. She has experience with data analysis, environmental quality monitoring, environmental remediation, and inorganic and organic chemistry. She has 6 years of environmental consulting experience and 6 years of experience in academia assessing mobility and source identification of trace elements in aquatic settings. Dr. Uselman is proficient in Leapfrog, ArcGIS, Surfer, and other data visualization software. She has organized and led field sampling campaigns, laboratory analysis, and data interpretation. Dr. Uselman has a passion for effective science communication and has presented her work at both national and international scientific meetings and amongst stakeholder groups.

Integral’s New PFAS Regulation Dashboard: Webinar

Video

June 27 2024

PFAS State Regulations in a Changing Regulatory Environment

Poster

June 04 2024

Using Accurate Sample Elevations to Characterize Sediment Conditions with 3-Dimensional Modeling

Resource

September 26 2023

The Benthic Zone (September Edition): Integral's Sediment Newsletter

Press Release

September 26 2023

PFAS State Regulation of Drinking Water, Groundwater, and Surface Water: A Look Back

Poster

March 27 2023

Multiple Lines of Evidence to Support 3-Dimensional Delineation of a Historical Dredge Prism

Poster

January 11 2023

Thirsty to know more about PFAS regulations in your state?

Press Release

January 27 2022

Colorado’s Current & Future PFAS Regulation in a National Context: Logan Uselman to Present at CEMS Conference

Press Release

September 09 2021

Project Management

Aluminum Can Manufacturing Facility, Salt Lake City, Utah Project manager and field lead for stormwater and industrial wastewater sampling at can manufacturing facility. Ensured proper methods were utilized to support compliance and permit-related sampling events. Completed required reporting with both the state and city agencies as well as monthly invoicing, budgeting, and scoping of future work.
Aquifer Recharge Study, Utah County, Utah Project manager and hydrologist for an aquifer storage and recharge study. Coordinated discussions and planning with client, completed monthly invoicing, budgeting, and scoping of future work.
Storm Drain Construction Litigation, Wyoming Project manager for litigation work concerning improper installation of a storm drain conveyance system. Tasks include supporting expert, managing budget, and preparing documentation.
Blackwell Zinc Site, Blackwell, Oklahoma Project manager for compliance monitoring, site investigation, and remedial design for a groundwater plume that resulted from historical operations at a zinc smelter. Tasks included managing large multidisciplinary teams and budgets, attending and leading bimonthly client meetings, reviewing labor reports, tracking invoices and budgets, scoping future work, and managing project team and tasks.
Natural Resource Damage Assessment, Long Island, New York Project manager and groundwater analyst for damage assessment of a trichloroethene plume on Long Island. Project management tasks included team organization, monthly invoicing, scoping of future work, and budgeting.
Former Wood Treatment Facility, Meridian, Mississippi Technical resource and assistant project manager for a former wood treatment facility. Assisted with monthly invoicing, scoping of future work, and budgeting. Assisted with the development and organization of corrective measures study reports, sampling campaigns, and technical memoranda. Developed 3D models of legacy contamination to inform corrective action. Provided technical expertise in ArcGIS.
Former Wood Treatment Facility, Columbus, Mississippi Assisted with the development and organization of feasibility studies, sampling campaigns, and technical memoranda for a former wood treatment and storage facility in Columbus, Mississippi, which is contaminated with creosote and pentachlorophenol. Assisted with project management including reviews of budgets, statements of work, and invoices. Provided technical expertise in ArcGIS and Leapfrog 3D modeling. Organized and performed surface soil sampling for site-related chemical constituents.

Water Management

Aluminum Can Manufacturing Facility, Salt Lake City, Utah Project manager and field lead for stormwater and industrial wastewater sampling at can manufacturing facility. Ensured proper methods were utilized to support compliance and permit-related sampling events. Completed required reporting with both the state and city agencies as well as monthly invoicing, budgeting, and scoping of future work.
Storm Drain Construction Litigation, Wyoming Project manager for litigation work concerning improper installation of a storm drain conveyance system. Tasks include supporting expert, managing budget, and preparing documentation.
Blackwell Zinc Site, Blackwell, Oklahoma Project manager for compliance monitoring, site investigation, and remedial design for a groundwater plume that resulted from historical operations at a zinc smelter. Tasks included managing large multidisciplinary teams and budgets, attending and leading bimonthly client meetings, reviewing labor reports, tracking invoices and budgets, scoping future work, and managing project team and tasks.
Water Resources Litigation Supported expert witness for a litigation case involving agricultural water rights and pumping near tribal lands. Assisted in development of a conceptual model to understand the hydrogeological conditions and constructed a groundwater model to determine possible impacts from agriculture activities.

Hydrogeology

Aquifer Recharge Study, Utah County, Utah Project manager and hydrologist for an aquifer storage and recharge study. Designed sampling campaign, organized field efforts, compiled results and lead summary report.
Blackwell Zinc Site, Blackwell, Oklahoma Project manager for compliance monitoring, site investigation, and remedial design for a groundwater plume that resulted from historical operations at a zinc smelter. Project geologist responsible for developing, maintaining, and updating geologic model and interpretations.
Water Resources Litigation, Midwest United States Supported expert witness for a litigation case involving agricultural water rights and pumping near tribal lands. Assisted in development of a conceptual model to understand the hydrogeological conditions and constructed a groundwater model to determine possible impacts from agriculture activities.

Modeling

Blackwell Zinc Site, Blackwell, Oklahoma Project manager for compliance monitoring, site investigation, and remedial design for a groundwater plume that resulted from historical operations at a zinc smelter. Project geologist responsible for developing, maintaining, and updating geologic model and interpretations.
Former Wood Treatment Facility, Columbus, Mississippi Assisted with development of 3‑dimensional geologic model with numeric interpolations of contaminant plumes.
Superfund Cleanup and NRDA Allocation, Portland, Oregon Lead modeler for legacy sediment site involving about 100 parties in allocation. Utilized Leapfrog 3D modeling software to build numeric and geologic models to assist in allocation and remedial design. Completed stormwater and sewage modeling over the project area. Assisted in writing position papers, rebuttal reports, and modeling reports.
Former Wood Treatment Facility, Meridian, Mississippi Technical resource and assistant project manager for a former wood treatment facility. Assisted with monthly invoicing, scoping of future work, and budgeting. Assisted with the development and organization of corrective measures study reports, sampling campaigns, and technical memoranda. Developed 3D models of legacy contamination to inform corrective action. Provided technical expertise in ArcGIS.
Former Wood Treatment Facility, Columbus, Mississippi Assisted with the development and organization of feasibility studies, sampling campaigns, and technical memoranda for a former wood treatment and storage facility in Columbus, Mississippi, which is contaminated with creosote and pentachlorophenol. Assisted with project management including reviews of budgets, statements of work, and invoices. Provided technical expertise in ArcGIS and Leapfrog 3D modeling. Organized and performed surface soil sampling for site-related chemical constituents.

Groundwater Remediation

Groundwater Compliance Monitoring and Remedial Design, Blackwell, Oklahoma Assisted with various aspects of a groundwater remediation project at a former zinc smelter site in Blackwell, Oklahoma. Completed weekly composite calculations of wastewater treatment plant influent for laboratory analysis and verified that weekly results were below threshold criteria. Using Surfer software, monitored monthly groundwater elevation data of aquifer drawdown and potential sewer vulnerability. Coordinated and performed permit sampling at wastewater treatment plant. Assisted with completion of 5-year report and annual monitoring reports.

Litigation Support

Water Resources Litigation, Midwest United States Supported expert witness for a litigation case involving agricultural water rights and pumping near tribal lands. Assisted in development of a conceptual model to understand the hydrogeological conditions and constructed a groundwater model to determine possible impacts from agriculture activities.
PFAS Litigation Support, Confidential Location Provided litigation support related to per- and polyfluoroalkyl substances (PFAS) contamination in drinking water, groundwater, surface water, and soils. Led evaluations of related chemistry data, chemical transport, source identification, and treatment costs.
Litigation Support and Preparation of Expert Witness, Multiple Counties, California Assisted with hydrogeologic conceptual site model for multi-county litigation focused on PFAS contamination. Assisted in preparing expert witness for trial.
Superfund Cleanup and NRDA Allocation, Portland, Oregon Lead modeler for legacy sediment site involving about 100 parties in allocation. Utilized Leapfrog 3D modeling software to build numeric and geologic models to assist in allocation and remedial design. Completed stormwater and sewage modeling over the project area. Assisted in writing position papers, rebuttal reports, and modeling reports.

Natural Resource Damage Assessment

PFAS in Groundwater, Confidential Location Lead geologist for natural resource damage assessment at a site with known PFAS contamination. Assisted expert witness with refining cost estimates based on site geology and contamination extent.
Selenium Plumes, Southeastern Idaho Assisted in natural resource damage assessment for groundwater selenium plumes in Southeastern Idaho. Tasks included historical document review, data and plume interpolations, figure generation, and coordination with other consulting firms.
Trichloroethene Plume, Long Island, New York Assisted in natural resource damage assessment for trichloroethene groundwater plume in Long Island. Tasks included project management, historical document review, data and plume interpolations, figure generation, and coordination with other consulting firms.

PFAS/Emerging Contaminants

PFAS in Groundwater, Confidential Location Lead geologist for natural resource damage assessment at a site with known PFAS contamination. Assisted expert witness with refining cost estimates based on site geology and contamination extent.
PFAS Litigation Support, Confidential Location Provided litigation support related to per- and polyfluoroalkyl substances (PFAS) contamination in drinking water, groundwater, surface water, and soils. Led evaluations of related chemistry data, chemical transport, source identification, and treatment costs.
PFAS Regulatory Tracking Coordinated quarterly updates to regulatory maps of PFAS in groundwater, surface water, and drinking water for Integral website. Maps differentiate between enforceable and non-enforceable standards for each state and provide working links to connect users to state-specific webpages. Regulatory maps also tracked soil PFAS standards and consumption advisories.

Mining

Gold King Mine Spill, Four Corners Region, U.S. Performed water quality sampling subsequent to the Gold King Mine spill (2015) and analyzed historical water quality samples to determine the percent of particulate metals/metalloids from mining versus non-mining sources in the tributaries of the San Juan River. Analyzed water quality samples and sediment samples for lead isotopes, particle size, particle shape, total and filtered metals (via inductively coupled plasma atomic mass spectroscopy), and total suspended solids. Performed statistical and spatial analysis to determine metal source. Participated in academic and stakeholder meetings to share findings. Source identification work culminated in a peer-reviewed publication.
Mining-Sourced Heavy Metals in Rivers, Southern Ecuador Co organized field campaigns in 2014, 2016, and 2017 to Southern Ecuador to assess impacts of improper mine-waste disposal to local rivers and streams. Assisted with the construction and monitoring of a lateral channel to promote passive filtration. Participated in international meetings with collaborators from government and academic institutes. Aided in the interpretation scientific findings in both Spanish and Quechua.

Program Management

US Magnesium Superfund Site, Grantsville, Utah Technical advisor on behalf of the Friends of the Great Salt Lake stakeholder group for the US Magnesium Superfund Site. Interpreted site documents generated by EPA and US Magnesium, including Phase 1 and Phase 2 site assessments, ecological risk assessments, and human health risk assessments. Generated quarterly reports and presentations with pertinent site progress. Participated in stakeholder meetings and public meeting regarding progress of the Superfund site.

(L. Uselman also published as L. Frederick)

Frederick, L., W. Johnson, T. Cerling, D. Fernandez, and J. VanDerslice. 2019. Source identification of particulate metals/metalloids deposited in the San Juan River delta of Lake Powell, USA. Water Air Soil Pollut. 230:128.

Frederick, L., A. Brunelle, M. Morrison, P. Crespo, and W. Johnson. 2018. Reconstruction of the mid-Holocene paleoclimate of the Ecuadorian Andean páramo at Tres Lagunas, Ecuador. The Holocene 28(7):1131-1140.

Grace, K., L. Frederick, M. Brown, L. Boukerrou, and L. Brent. 2017. Examining the interrelated impacts of water quality and food availability: A study of very young children’s health outcomes in Burkina Faso, West Africa. Population and Environment 39(1):26-46.

Frederick, L., J. VanDerslice, M. Taddie, K. Malecki, J. Gregg, N. Faust, and W.P. Johnson. 2016. Contrasting regional and national mechanisms for predicting elevated arsenic in private wells across the United States using classification and regression trees. Water Research 91:295-304.

Johnson, W.P., L. Frederick, M. Millington, D. Valla, B. Reese, D. Freedman, C. Stenten, J. Trauscht, C. Tingey, D. Solomon, D. Fernandez, and G. Bowen. 2015. Potential impacts to perennial springs from tar sand mining, processing, and disposal on the Tavaputs Plateau, Utah, USA. Science of the Total Environment 532:20-30.

Uselman, L., J. Zadra, and A. Meyers. 2024. Integral’s new PFAS regulation dashboard. Webinar.

Uselman, L., and A. Frankel. 2024. State approaches to regulating PFAS in a dynamic regulatory environment. Thirteenth International Conference on the Remediation of Chlorinated and Recalcitrant Compounds, Denver, CO. June 2–6.

Uselman, L., and D. Deetz Silva. 2023. Multiple lines of evidence support 3-dimensional characterization for remedial design. Eleventh International Conference on Remediation of Contaminated Sediments, Austin, TX. January 9–12.

Uselman, L., and A. Frankel. 2023. PFAS state regulation of drinking water, groundwater, and surface water: A look back. AEHS West, San Diego, CA. March 18–21.

Uselman, L., and A. Frankel. 2021. Putting Colorado’s PFAS regulations in national context. CEMS Fall Conference. Westminster, CO.

Kirkland, K., L. Uselman, and D. Deetz Silva. 2021. Subsurface Visualization Using Geophysical Survey Methods. Society of Environmental Toxicology and Chemistry. Virtual.

Frederick, L., A. Rasmuson, S. Yang, and W. Johnson. 2018. An overview of the US Magnesium Superfund site. Great Salt Lake Issues Forum. Salt Lake City, UT.

Frederick, L., W. Johnson, T. Cerling, and D. Fernandez. 2017. Source identification for particle-bound metals in the San Juan River system, USA. 129th Annual Meeting of the Geological Society of America, Seattle, WA.

Frederick, L., W. Johnson, E. Pazmino, J.M. Garcia, X. Diaz, and J. VanDerslice. 2016. Mobilization of mining sourced trace elements in the Rio Gala, Ecuador. 128th Annual Meeting of the Geological Society of America, Denver, CO.

Frederick, L., and W. Johnson. 2016. Role of Fe, Mn, and Al oxyhydroxides in mobilizing metals released during the Gold King Mine spill. 128th Annual Meeting of the Geological Society of America Conference, Denver, CO.

Frederick, L., K. Grace, M. Brown, L. Boukerrou, and L. Brent. 2015. The impacts of water quality and food availability on children’s health in West Africa: A spatial analysis using remotely sensed data and small-scale water quality data and country-level health data. American Geophysical Union Conference, San Francisco, CA.

Frederick, L., A. Brunelle, M. Morrison, P. Crespo, and W. Johnson. 2015. Reconstruction of the páramo paleoclimate record in Tres Lagunas, Ecuador. American Geophysical Union Conference, San Francisco, CA.

Frederick, L., W.P. Johnson, M.R. Millington, C. Tingey, D. Solomon, D. Fernandez, and G. Bowen. 2015. Potential impact to perennial springs from tar sand mining, processing, and disposal on the Tavaputs Plateau, Utah, USA. Society for Environmental Toxicology and Chemistry, Salt Lake City, UT.

Frederick, L., J. VanDerslice, M. Taddie, K. Malecki, J. Gregg, N. Faust, and W.P. Johnson. 2014. The determination and estimation of arsenic and uranium in private wells throughout the United States. American Geophysical Union Conference, San Francisco, CA.

Frederick, L., and K. Nichols. 2013. HEC-RAS modeling of splash dam discharge in the Upper Hudson River watershed, New York. North East Geological Society of America Conference, Mount Washington, NH.

Frederick, L., C. Loehr, and V. Swartz. 2011. Mapping of Saratoga Springs surficial geology: Glacial lakes, rivers, and buried valley. North East Geological Society of America Conference, Pittsburgh, PA.

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