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R. Jeffrey Davis, P.E., CGWP

R. Jeffrey Davis, P.E., CGWP
Principal

R. Jeffrey Davis, P.E., CGWP

Principal

Mr. Jeff Davis is a licensed civil and environmental engineer and certified groundwater professional with 27 years of global experience working on every continent except Antarctica. He currently serves on the board of directors for the National Ground Water Association’s Scientists and Engineers section. Mr. Davis has been involved in remediation projects throughout the country for most of his career and has spent many years working on coal combustion residual landfills and other waste impoundments. He has developed and used numerous groundwater models for the mining and energy industries, including projects involving environmental impact statements, environmental assessments, water man...

Mr. Jeff Davis is a licensed civil and environmental engineer and certified groundwater professional with 27 years of global experience working on every continent except Antarctica. He currently serves on the board of directors for the National Ground Water Association’s Scientists and Engineers section. Mr. Davis has been involved in remediation projects throughout the country for most of his career and has spent many years working on coal combustion residual landfills and other waste impoundments. He has developed and used numerous groundwater models for the mining and energy industries, including projects involving environmental impact statements, environmental assessments, water management, groundwater–surface water contamination, dewatering, and water supply and treatment. He has extensive knowledge of groundwater flow-and-transport principles and has taught numerous workshops and classes in the U.S. and around the world. His current focus is on water and groundwater sustainability and drought resiliency. Mr. Davis has extensive experience in the design and implementation of aquifer storage and recovery projects across the country.

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Saving the Great Salt Lake: A Lake-First Approach

Poster

November 01 2023

Evaluating Groundwater Conveyance of Point Source Pollution to a Navigable Water as Functionally Equivalent to Direct Discharge

Resource

May 26 2023

Emergency Measures Needed to Rescue Great Salt Lake from Ongoing Collapse

Press Release

January 09 2023

Integral Consulting Welcomes Jeff Davis as Principal, Expands Its Water Resource Management Practice

Press Release

February 16 2022

Aquifer Storage and Recharge for Farmland Water Use

Case Study

December 23 2022

Aquifer Storage and Recharge Design for a Western City

Case Study

December 23 2022

Water Management

ASR Feasibility, Utah County, Utah Served as principal for a feasibility study for an aquifer storage and recovery project. Former agricultural water rights were converted for industrial use and the effluent was being considered for aquifer replenishment. Both infiltration and direct injection of the treated water were considered as part of the feasibility study.
Provo ASR, Provo, Utah Served as the project manager and engineer of record for the current Provo ASR project. Five sites (three infiltration and two direct injection) are currently permitted for pilot studies that have been ongoing since 2020. Final engineering design and permitting have been completed for all five sites.
Water Reuse and Aquifer Sustainability, Eagle Mountain, Utah Served as the client manager and engineer of record for the current Eagle Mountain City, Utah, water-reuse planning and aquifer sustainability project. Water rights for Eagle Mountain were evaluated along with the groundwater system to understand aquifer sustainability for the city, which is expecting tremendous future growth, including large industrial water demands.
ASR Evaluation, Weber County, Utah Served as the project manager and engineer of record for the current evaluation of the Weber Basin Water Conservancy District, Utah, ASR project. This project has been actively operating for more than 10 years. Hired to evaluate the storage capacity of the program and obtain greater recovery volumes from the system, working with the Utah Division of Water Rights.
Drainage Reuse Initiative, Harris County, Texas Served as part of a team for the development of the Drainage Reuse Initiative for Harris County Flood Control District in Harris County, Texas. The project investigated the feasibility of alternative methods of flood mitigation by conveying stormwater to the subsurface, including natural infiltration to groundwater, enhanced infiltration or injection into aquifers, and mechanical injection to deep aquifers.
Roseville ASR, Roseville, California Served as one of the groundwater leads for the development of an ASR program for the city of Roseville, California. Initial efforts involved developing a regional-scale conceptualization for the major portion of the Central Valley area. Developed a subsequent regional multilayer groundwater model, followed by a number of local-scale transport models to simulate pilot tests and understand the ASR process.

Oil and Gas Waste Management

Oil and Gas Waste Facility, De Beque, Colorado Served as the principal engineer for the permitting and operating of an 800-acre oil-and-gas waste-disposal facility southeast of De Beque, Colorado. Involved in several aspects of the permitting process, including the hydrogeological study and groundwater investigations; stormwater design; pond liner design and construction; closure certification; and submittal of the revised engineering design and operation plan.
Remedial Investigation, Billings, Montana Served as the groundwater lead for the Yale Oil of South Dakota Facility in Billings, Montana. The Superfund site facility is in the remedial investigation phase; the risk-assessment work plan has been submitted to the Montana Department of Environmental Quality, and the client is waiting for comments before proceeding with the risk assessment.
EPA Study, Washington, DC Served as participant and technical reviewer for EPA’s “Study of Hydraulic Fracturing for Oil and Gas and Its Potential Impact on Drinking Water Resources.” Participated in technical roundtables and technical workshops and completed a peer review of the EPA’s five retrospective case studies.
Fate and Transport Modeling, Texas Served as groundwater lead for fate-and-transport modeling and analysis of chloride contamination in southern Texas near the Gulf of Mexico. As part of the site mitigation phase, modeling was used to determine the potential migration of the chloride through the shallow aquifer system and nearby receptors.
Lockwood Solvent Groundwater Plume Site, Billings, Montana Served as one of the groundwater leads performing groundwater modeling for the Lockwood Solvent Groundwater Plume site, an EPA Superfund site in Billings, Montana. The site spans 580 acres, and much of the groundwater there is contaminated with volatile organic compounds, including tetrachloroethene, trichloroethene, cis-1,2-dichloroethene, and vinyl chloride.

Planning and Permitting

Ely Energy Center EIS, White Pine County, Nevada Served as principal lead for the development of a regional groundwater model for Steptoe Valley in White Pine County, Nevada. The investigation and model were part of the EIS for construction of the Ely Energy Center.
Haile Gold Mine EIS, Kershaw, South Carolina Served as groundwater lead as the third-party contractor developing an EIS for the proposed Haile Gold Mine near Kershaw, South Carolina. The EIS analyzed the potential direct, indirect, and cumulative environmental effects of the proposed project and its alternatives. Work included project-team coordination for geology, groundwater, and surface water resources areas; review of applicant-supplied information; agency coordination; and public involvement.
Four Corners Power Plant EIS, Farmington, New Mexico Served as groundwater lead as the third-party contractor in developing an EIS for the Four Corners Power Plant and Navajo coal mine in Farmington, New Mexico. The EIS analyzed the potential direct, indirect, and cumulative environmental effects of the proposed project and its alternatives. The groundwater portion included analyzing field investigations, pump tests, conceptual and numerical modeling of the project and surrounding area, and remediation and reclamation activities.
Iron Ore Operations Cumulative Impact Assessment, Pilbara, Western Australia Served as one of the groundwater leads for a cumulative impact assessment for a proposed expansion of iron ore operations in the Pilbara in Western Australia. Work included identifying the methodology and developing the conceptual models to perform the assessment. The groundwater modeling included both quantitative and qualitative approaches.

Litigation Support

PFAS Litigation, Martin County, Florida Served as the groundwater expert witness for a litigation case in Martin County. The bellwether case involved PFAS contamination of groundwater affecting public drinking water. Opinions were given regarding PFAS sourcing, fate, and transport of PFAS in groundwater and regarding public water supply planning.
Groundwater Litigation, Ventura County, California Served as the groundwater expert for a litigation case in Ventura County. The case includes the development of a basin-wide groundwater–surface water model, not only for purposes of litigation but also for compliance with Sustainable Groundwater Management Act requirements. The groundwater basin in question is currently listed as a priority basin by the State of California.
Pipeline Spill Litigation, Williston, North Dakota Provided litigation services for groundwater and surface water contamination from a pipeline spill in North Dakota. A large spill of produced water (brine) impacted surface streams as well as the shallow aquifer system. Work included groundwater modeling, field investigations, and remedial strategies.
Road Salt Contamination Litigation, Vandalia, Ohio Performed fate-and-transport modeling and analysis of sodium chloride contamination of an aquifer in Vandalia, Ohio. Stored road salt caused limited contamination of a shallow aquifer that supplied drinking water to nearby residential homes. The groundwater model included the local domestic pumping wells, which helped determine the possible extent of chloride impacts. Largely due to the conceptual site model and transport modeling results, litigation was settled out of court to the satisfaction of the client.

Groundwater Monitoring

Hydrogeological Services, Montgomery County, Texas Provided modeling and hydrogeological consulting services for the Lone Star Ground-water Conservation District’s (Montgomery County, Texas) update of its desired future conditions and groundwater management plans. Also provided litigation services for the district.
Groundwater Model Development, Havana, Florida Provided consulting services for Northwest Florida Water Management District as it updated its regional groundwater model—an integrated groundwater–surface water model that provides regulatory control of the groundwater withdrawals and manages saltwater intrusion in the Floridan aquifer due to pumping.
Legacy Way Tunnel Design, Brisbane, Australia Provided senior oversight and technical review for all hydrogeologic assessments related to the Legacy Way tunnel design project, a 4.6 km underground tunnel in northern Brisbane, Australia. Work included evaluating field tests, preparing geotechnical and environmental reports, and modeling the entire project area.
Mercury Fate and Transport, Cincinnati, Ohio Served as the groundwater lead for performing fate-and-transport modeling and analysis of a mercury spill at a municipal landfill in Cincinnati, Ohio. As part of the project management phase, modeling was used to determine the potential migration of mercury through the landfill to the leachate collection system. Modeling efforts examined both the spatial distribution and the temporal component of the mercury transport.
Due Diligence Environmental Review, Pascagoula, Mississippi Served as the environmental lead for performing an environmental assessment at a chemical plant in Pascagoula, Mississippi, as part of a due diligence effort. A number of groundwater and surface water contamination issues due to spills, leaks, and storage of hazardous materials were addressed. The location of the plant on the Gulf of Mexico make possible environmental impacts from operations of the chemical plant a sensitive issue.

Mining

Bingham Canyon Mine Closure Planning, Copperton, Utah Completed an independent third-party audit for a closure-plan pit-lake study for Bingham Canyon Mine. Reviewed the consultant scope of work for the pit-lake study and discussed the study, methodology, and pathway to completion with consultant staff. An independent audit report was compiled and submitted to the client.
Hooker Prairie Mine, Bartow, Florida Served as the model expert to develop a contaminant and water budget and management model for the Hookers Prairie Mine in Florida using the GoldSim modeling software. The purpose of the model was to evaluate the probabilities of the mine meeting its current and future nutrient NPDES loading limits for certain contaminants. The project also included an evaluation of current monitoring data within the mine operations and at discharge locations, and the development of a complete monitoring plan integrated into a GIS as part of the model calibration and validation.
Bridger Coal Mine Investigation, Rock Springs, Wyoming Served on a technical team to reevaluate groundwater conditions, and treatment and discharge alternatives at the Bridger coal mine in southwest Wyoming. Previous studies’ predicted maximum flows into the mine had been exceeded. Reassessed the situation and provided solutions.
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