Mark P. Hemingway, P.G.

Transcription

1 Mark P. Hemingway, P.G. Education M.S., Geology, New Mexico Institute of Mining and Technology, Socorro, 1986 B.S., Geology, University of Texas, Austin, 1981 Professional Background GSI Environmental, Inc., Principal Geoscientist, 2011 to date AMEC Geomatrix, Inc., Principal Hydrogeologist, Hays Trinity Groundwater Conservation District, Director, Geomatrix Consultants, Inc., Principal Hydrogeologist, Huntingdon/Southwestern Laboratories, Senior Hydrogeologist, International Technology Corporation, Project Manager, New Mexico Bureau of Mines, Field Geologist, Laboratory Technician, Professional Certifications and Affiliations Professional Geoscientist, Texas, No. 1274, 2003 Professional Geologist, Florida, No. PG2503, 2008 Professional Geologist, Arkansas, No. 1903, 2008 Professional Geologist, Kansas, No. 823, 2013 Professional Geologist, Missouri, No , 2014 Project Experience Mr. Hemingway has participated in and supervised due diligence/all Appropriate Inquiry assessments, hydrogeologic investigations, and remedial actions in oil and gas fields, refineries, petrochemical plants, and industrial facilities across the United States and internationally. These actions have addressed known and suspected impacts to groundwater, surface water, stream sediments, soil gas, and surface and subsurface soils. His experience is based on both first-hand supervision of inspections, drilling, well installation, sampling, and other field activities, and on technical evaluations of groundwater and soil vapor flow and contaminant migration. He has developed and installed saturated and unsaturated zone monitoring and remediation systems. Mr. Hemingway has conducted or participated in RFI/CMS operations under RCRA, RI/FS operations under CERCLA, investigations and remediations under UST statutes, and investigations/remediations under TSCA. This work has addressed chlorinated solvents, PCBs, petroleum hydrocarbons, nitrates, metals, and a range of other chemical constituents and waste materials. In addition, he has participated and directed evaluations of groundwater resources in the State of Texas, both as a consultant and as a director of a groundwater regulatory body. Representative Projects Litigation Support Arbitration Support regarding Allegations of Oilfield E&P Environmental Damages. Performed environmental field audits of several dozen oil and gas well and field processing sites in the Oriente of Ecuador, in support of binding arbitration before an international tribunal. Work included evaluations of applicable industry standards, development of field audit protocols, performance of audits in multiple fields, and reporting. This project is currently in progress.

2 Mark P. Hemingway, PG Page 2 Litigation Support (cont d) Litigation Support regarding Groundwater Impact from Dry Cleaning Solvents. Provided technical support for litigation related to chlorinated solvent impact to groundwater resources from a historic dry cleaning operation in Dallas, Texas. The work performed included an evaluation of assessment costs, assessment of alternative sources of the observed groundwater impact, and estimation of likely future costs for regulatory closure under applicable Texas regulations, including the preparation of an expert report. Litigation Support for a CERCLA cost recovery action pursued by the former owner/operator of a plant underlain by an arsenic plume in groundwater in El Paso, Texas. Activities included an evaluation of existing surface water and groundwater pathways, evaluation of fate and transport issues, identification of existing sources of arsenic impact from the plant operations, and testimony in Federal court. Litigation Support regarding Groundwater Impact from Chlorinated Solvents and Solvent Stabilizers (1,4-Dioxane). Provided litigation and hearing support with regard to the adequacy of investigation efforts and reasonableness of assessment findings at the site of a former machine and plating shop in western Florida. At the subject site, chlorinated solvents (e.g. TCE), daughter products (e.g. 1,1-DCE and 1,1-DCA), and solvent stabilizers (1,4- dioxane) had impacted groundwater in multiple water-bearing zones, including zones historically used for domestic supply, in a predominantly residential area. Litigation on Site Cleanup Requirements, Report and testimony at binding arbitration related to the need for additional investigation and cleanup activities at a former refinery and oil and gas production field in east Texas that had been converted to residential use. Activities included the comparison of existing site conditions and data to current regulatory standards used by the state and by U.S. EPA. Litigation Support on Source of Groundwater Contamination. Report and testimony related to the sources, migration, and character of subsurface contamination by chlorinated organics (primarily 1,2-DCA), at a chemical plant near Lake Charles, Louisiana. Activities included preparation of an expert report, testimony in deposition, and extensive support to attorneys on a wide range of technical case issues. Litigation Support on Adequacy of Site Investigation. Report and testimony relating to the previous assessment and likely origin of a groundwater plume of chlorinated solvents (primarily PCE and TCE) at a site in east Texas. Litigation Support for Environmental Cleanup at Chloride Site. Provided technical support and expert witness services for litigation relating to alleged oilfield-related damage to soils, sediments, and surface water in northeast Texas. Damages were suspected to be caused by releases of saltwater from production facilities. Activities included development of a remedial approach, conceptual design, cost estimates, in addition to testimony in Federal court. Due Diligence Due Diligence of Bulk Fuel Terminal Portfolio. Performance of an evaluation of several Gulf Coast bulk fuel terminals, in support of a multi-company acquisition team. Due diligence review included both site walks, interviews, and records searches, and were used on a rapid turnaround to develop cost estimates for environmental liabilities. This information was then used to support a bid/no bid decision by the evaluation team. Due Diligence of Hydrofractured Oil & Gas Production Field. Performance of a environmental assessment and compliance review of a oil production field in and near Pecos, Texas. Wells included both vertical, short run horizontal, and horizontal, and were hydrofractured during completion. Drilling and hydrofracturing were in progress at wells during the assessment, which was used by the buyer to evaluate potential liabilities and quantify needed capital improvements. Due Diligence of Air Conditioner Service Center Portfolio. Investigation and regulatory evaluation of approximately 120 air conditioning service centers, as part of a multi-disciplinary team in support of acquisition negotiations. Due diligence activities included database searches and reviews of corporate records, and were used to develop an environmental set aside against the purchase price. Due Diligence and Groundwater Investigation of Truck Wash Facility, West Memphis, Arkansas. Directed Phase 1 and 2 assessments of an inactive truck wash and refurbishing facility and associated wastewater management systems. Work included a direct-push groundwater investigation to evaluate chlorinated solvent presence in groundwater within a shallow alluvial aquifer, and an evaluation of applicable state regulatory requirements. Due Diligence of Oil and Gas Properties. Due diligence assessments of approximately 1000 oil and gas properties, distributed throughout Texas, Louisiana, Oklahoma, Kansas, Colorado, and Wyoming. Assessments included site reconnaissance, interviews, and records searches, and were used to develop budgets for environmental liabilities, and to exclude selected high-risk properties from transactions.

3 Mark P. Hemingway, PG Page 3 Site Investigation and Remediation Voluntary Cleanup of TCE Plume in Drinking Water Supply Aquifer, Texas Gulf Coast. Project management and technical lead on remedial investigation of site with a TCE plume approximately one mile in length affecting a large number of residential supply wells. The project is being performed under the Texas Voluntary Cleanup Program. RCRA Investigation of Chemical Plant. Management and technical direction of a RCRA Facility Investigation for a large chemical plant in southern Ohio, where soil and groundwater impact by chlorinated and non-chlorinated aromatic hydrocarbons was identified. Activities included regulatory negotiation, well installation, stream characterization, electromagnetic surveys for buried waste, sediment sampling, ecological assessment, and development of background concentrations for pesticides, PCBs, PAHs, and other urban constituents. The project was performed in under an Administrative Order from Region 5 EPA. RCRA Investigation, Remediation, Closure, and Post-Closure for Chlorinated Solvent Plume at Chemical Plant. Performance of a RCRA Facility Investigation at an active specialty chemical plant in Ohio, and performance of interim measures for source removal. The site included as TCE/1,1,1-TCA/carbon tetrachloride plume in a solesource drinking water aquifer that affected several domestic supply wells. Investigation activities included well installation, stream profiling and sampling, surface geophysical evaluations, an ecological assessment, and sampling of domestic/municipal supply wells. Activities included a corrective measures study, culminating in the recommendation and implementation of a remedial approach (source removal and monitored natural attenuation). Activities were performed under multiple negotiated agreed orders with Region 5 EPA. Investigation & Remediation, Redevelopment of Former Wood Treating Site, San Antonio, Texas. Project and technical review for evaluation of soils with elevated levels of dioxins and chlorinated phenols from a former wood treatment operation. The site was being redeveloped for commercial retail use. Project activities included investigation of soils impacted with wood treatment compounds, evaluation of historic information regarding the nature of the treatment operation, waste characterization negotiations with the state environmental agency, and soil removal and disposal at an off-site landfill. PCE Investigation and Remediation, Dallas/Fort Worth Area. Assessment and remediation of soil and groundwater impact by PCE and daughter products below a dry cleaning operation. Work was performed in pursuit of closure under the Texas Voluntary Cleanup Program. Investigation and Remediation of Gas Processing Plant, South Texas. Technical direction and principal oversight of investigation of active gas processing plant, including soil borings, monitoring wells, vapor evaluations, and water supply well evaluation. Activities also included development of remedy plan to address soil and groundwater impact; this plan has been approved by the State of Texas, and is currently being implemented. Superfund Response Action at Former Transformer Site. Project manager for remedial action at federal Superfund site in Houston, Texas. Site impact included PCBs in soils and chlorinated solvents (primarily TCE) in groundwater. Work focused on the implementation of a remedy previously selected by the state and by EPA Region VI. Superfund Response Action at Pipe Manufacturing Facility. Planning and field supervision of an expedited removal action of soils containing chlorinated solvents, notably 1,1,1-TCA, at a pipe manufacturing facility in Hastings, Nebraska. Activities included the excavation and disposal of severely contaminated soil from a heavily trafficked area near buildings and utilities under severe winter conditions. Responsibilities included coordination between client legal counsel, Nebraska Department of Environmental Control, and the EPA. Superfund Site Investigation and Remediation. Participation in the assessment and corrective action operations at the Firestone Superfund site in Salinas, California. Work performed included monitoring well installation, aquifer testing, and the development and installation of two hydraulic control systems for groundwater impacted by chlorinated hydrocarbon solvents. Investigation of Swine CAFOs. Management and technical direction of Corrective Action at several swine farms in central Oklahoma, performed under RCRA and Safe Drinking Water Act Administrative Orders/enforcement actions implemented by Region 6 EPA in conjunction with the State of Oklahoma. In addition to extensive investigation and characterization of barns and lagoons, activities included taking the technical lead on settlement negotiations with EPA, the U.S. Department of Justice, the Oklahoma Department of Agriculture, Food and Forestry (ODAFF), and the Oklahoma Attorney General. Cost Projection, State Superfund Site. Preparation of summary and cost estimate of projected environmental investigation, remediation, and post-closure care activities for a State Superfund site in southeast Texas, based on existing file information and knowledge of current regulatory trends. The site included metal catalyst waste, chlorinated organics, and styrene tars. This information was utilized by the client, an environmental attorney, in the execution of the estate that included the site.

4 Mark P. Hemingway, PG Page 4 Site Investigation and Remediation (cont d) Investigation of Former Pesticide Manufacturing Facility, Tuscaloosa, Alabama. Performed oversight of drilling, soil sampling, well installation, groundwater monitoring, and other aspects of the field investigation program. The investigation was intended to characterize process and disposal areas of a site used for pesticide manufacture, and with impact from dioxins, styrenes, and other organic compounds. Investigation and Remediation for Former Airport. Management and technical direction of major due diligence project relating to the closure of the Austin airport. Site assessment activities were performed during the final two years of active airport operations, and included records review, drilling, trenching, geophysical, soil gas surveys, and stormwater ditch and pond sampling. Specification and oversight of site remediation activities commenced after airport closure, and are currently in progress. All activities are being performed under Texas Voluntary Cleanup Program (i.e. state Brownfield program). Post-Closure Management, Methane & Groundwater Monitoring. Technical performance and project management of hydrogeologic investigations and methane control conceptual designs as part of RCRA Subtitle D post-closure care for the City of San Antonio's municipal solid waste facilities. Voluntary Cleanup Program TRRP Closure of Chloride-Contaminated Site Closure of a site in San Antonio affected by chlorides from a sodium hypochlorite tank release. Activities included site assessment, regulatory negotiation, and oversight of remediation (soil and infrastructure removal). TCEQ granted closure of site under Remedy Standard A of TRRP. Remediation of PCBs at Compressor Station. Management and technical direction of the remediation of a major natural gas compressor station in southeastern Ohio. Activities included the preparation of a detailed remedial work plan, coordination with station operations, and contractor oversight in the removal of soils and sediments impacted by chlorinated hydrocarbons. Activities were performed under the auspices of a Federal consent decree, and field activities were under the continuous observation of representatives of the U.S Environmental Protection Agency. Site Remediation of Former Surface Impoundments. Remediation of approximately 5000 cubic yards of soils impacted by metals and polycyclic aromatics at an inactive facility in southeast Houston. Activities included development of remediation specifications and bid packages, and oversight of remedial contractor activities during the remediation. Lead Release Remediation and Closure. Management of the investigation and remediation of a lead release at a former radiator shop in an industrial setting in Austin, Texas. Activities included the negotiation of an "anthropogenic" background concentration for lead of approximately 250 milligrams per kilogram, to permit a "closure to background" of the site, without deed recordation or further monitoring/controls. Mercury Release Remediation. Technical oversight of the investigation and remediation of a mercury release site within a refinery located in northeast Texas. Activities included the stabilization and recovery of free methane, and confirmation air, soil, and wipe sampling around the slab of an air mover and within an adjoining building. Jet-A Release Remediation. Configuration and implementation of a 1600-foot soil vapor extraction trench system at a Jet-A fuel release site on a pipeline terminal in Woodbury, New Jersey. Implementation included acquisition of subcontractors, equipment, and materials, and required interaction between client environmental personnel, terminal personnel, and construction subcontractors. Landfill Groundwater Assessment, Municipal Solid Waste Landfill. Groundwater investigation at closed Nelson Gardens Landfill in San Antonio, to characterize groundwater flow and nature and extent of environmental impact. Because significant neighboring off-site source areas are also present, the work included efforts to distinguish landfill impact using geochemical indicators. Work included well installation, aquifer hydraulic testing, and groundwater sample analysis. Cap Failure Evaluation. Evaluation of Municipal Solid Waste landfill cap in Galveston Co., Texas. Landfill cap was experiencing localized failure due to moisture accumulation within the fill body. Performed a hydraulic evaluation of water levels within the cell, developed a conceptual model for water movement and accumulation. Developed alternatives for corrective action, including drainage and cover improvements and phytoremediation. Landfill Geologic Assessments. Performance and technical supervision of geologic assessment for Subtitle D municipal waste landfills at several Texas sites.

5 Mark P. Hemingway, PG Page 5 Affiliations Former Chair, Air & Waste Management Association, Central Texas Chapter Publications and Presentations "Results of a Soil Vapor Extraction Pilot Test in Low Permeability Terrace Deposits, Kelly Air Force Base, Texas." R.G. Larkin, M.P. Hemingway, and W. John. Proceedings of the Petroleum Hydrocarbons and Organic Chemicals in Ground Water: Prevention, Detection, and Restoration, a Conference and Exposition, National Water Well Association Guide to Assessing and Remediating Petroleum Hydrocarbons in Soils. M.P. Hemingway (Contributing Author). API Publication 1629, 1st Edition, American Petroleum Institute. p. 81. October "Monitoring Wells." B. Kent and M.P. Hemingway, in Geotechnical Practice for Waste Disposal, Dr. D.E. Daniel (ed.) Chapman and Hall, London. Environmental Issues Associated with Redevelopment of Urban Oilfields, Kimberly Holland, Nancy Boschetto, Bob Kent, and Mark Hemingway. American Chemical Society, Western Regional Meeting, October Investigative Methods for Detecting and Quantifying Nitrogen Impact to Groundwater from Swine CAFOs, Mark P. Hemingway. Conference on Agriculture and Water Quality in the Pacific Northwest, October 2004.