ATTACHMENT_Experience___Capacity_Response_CDM_Smith.pdf

State of Arizona Department of Environmental Quality

Project Manager(s)

Ian Lo, PE, PMP Connor Kelley, PE, PMP Adria Mead Misti Burkman, PE, BCEE

Environmental Engineer Neil Smith, PE

Environmental Engineer Tamzen Macbeth, PhD, PE, BCEE

Geologist Kimberly Myers, PG

Environmental Engineer Jeff Bamer, PE

Environmental Engineer Jason Silvertooth, PE

Geologist Song Chen, PE, PG, PChem

Environmental Engineer Michael Lamar, PE, PMP

Environmental Engineer Ben Carreon, PE

Geologist Joseph Miller, PG

Principal-in-Charge Carlos Ortiz

Key Personnel

Quality Assurance Robert Alexander, RG*

= Primary contact for proposal and task order requests.*

Organizational Chart

Key Project Experience/Highlights

Mr. Ortiz has 24 years of experience and specializes in project oversight, operational management, and environmental consulting related to emergency response action, soil and groundwater assessment/investigation, and corrective action throughout the region (TX, OK, KS, NE, WY, CO and NM). He works closely with clients and teams to implement innovative and cost-effective solutions that mitigate environmental and human health risks. In the last seven years alone, Carlos has been involved in providing remediation solutions for more than 500 in-situ remediation projects—from state-level Superfund and dry cleaner sites to large complex Industrial projects, various EPA Superfund sites, and numerous federal projects with the USACE, AFCEC and NAVFAC.

North Railroad Avenue Plume Superfund Site New Mexico Dept. of Environment (NM)

Served as a senior technical manager for the project, where site conditions consisted of a Superfund site with groundwater impacts from a historical dry-cleaning facility resulting in chlorinated contaminants, including tetrachloroethene (PCE) and trichloroethene (TCE). Contamination at the site is impacting a Shallow Zone plume and a Deep Zone plume. After successful remediation activities completed by the EPA, residual hot spot areas remained in the Shallow and Deep Zone plumes at the site. This was mainly due to the challenging geologic conditions predominant at the site.

Luke Air Force Base – Luke Waterdog Recreation Annex Site Remediation Arizona Dept. of Environmental Quality (AZ)

Served as a senior technical manager in Maricopa County, AZ where site conditions consist of groundwater impacted with petroleum hydrocarbons, including TPH and BTEX. The client’s initial groundwater remediation strategy did not perform as intended, with elevated contaminant concentrations threatening impacts to Apache Lake. A final in-situ application was conducted at the site after the successful pilot scale application was completed to reduce contaminants in groundwater, prevent contaminant Apache Lake, and move the site toward regulatory closure.

Firm CDM Smith

Location Dallas, TX

Years of Experience 24 years (Total)

1 year (At Firm)

Education MS, Sustainability – Energy & Materials Management, University of Oklahoma (Ongoing)

BS, Earth & Environmental Science, Penn State University

Key Registrations & Certifications N/A

Carlos Ortiz Principal-in-Charge

Santa Fe County Judicial Complex New Mexico Environment Department (NM)

Served senior technical manager for the site, which was a former petroleum hydrocarbon UST operation associated with the former Santa Fe Judicial Complex. Historical petroleum hydrocarbon releases impacted soil and groundwater. Scope included various in-situ injection methods evaluated during a pilot-scale application.

The site’s complex geology (arid depositional environment with silts, clays, and gravels) was critical in the recommended option(s) for direct-push method, open-borehole straddle-packer method, open-borehole single-packer method, and direct push injection.

In-situ Remedial Design – E. 67th Street Superfund Site U.S. Environmental Protection Agency (TX)

Served as a senior technical manager for the Superfund site with groundwater impacts from a 15,000-gallon solvents release, primarily PCE that impacted multiple aquifer zones, including the shallow zone (60 ft), the intermediate zone (85 ft) and the deep zone (130 to 150 ft). The site’s arid depositional environment was a primary factor in the remedial technology selection and approach. Successful optimization of the CSM and remedial design eliminated the contaminant migration and the dissolved contaminant concentrations impacting the residential potable water wells.

Mr. Alexander is an environmental scientist with 33 years of diverse experience, including environmental project management, site investigations, preparation of decision-making documents, remedial investigation/feasibility studies, environmental emergency response, remedial action oversight, and compliance. He has also helped develop field work plans and investigation documents, and has led or participated in numerous field efforts. He has conducted diverse projects for the EPA, DoE, USFS, DoD, state governments, and private industry. In addition, he serves as a quality assurance coordinator for numerous government-led environmental projects. and health and safety coordinator for CDM Smith’s Helena, MT office.

White Sands Missile Range RCRA Closure Investigation U.S. Army Toxic & Hazardous Materials Agency (NM)

Served as the field investigation manager for the project, which included conducting Resource Conservation and Recovery Act (RCRA) closure investigations for two practice bomb disposal areas. Key responsibilities included preparing the health and safety plan and assisted with the development of the sampling and analysis plan, site evaluation report, and closure reports. He also provided oversight of the geophysical investigation and supervised the surface/subsurface soil sampling effort.

Cimarron Mining Company Site Remedial Investigation, Feasibility Study & Remedial Action U.S. Environmental Protection Agency (NM)

Served as a technical specialist and environmental scientist and participated in a variety of sampling efforts at this site and its operable unit, the Sierra Blanca milling site. He collected samples of sludge from the septic system, soil and waste samples, and treatability study samples. He also supervised the installation of recovery wells to remove cyanide-contaminated groundwater as part of the remedial action at the Cimarron site. Project also included a sampling and analysis plan, health and safety plan, and both remedial investigation and action plans.

Firm CDM Smith

Location Albuquerque, NM

Years of Experience 33 years (Total)

33 years (At Firm)

Education MS, Geology, New Mexico Institute of Mining & Technology

BS, Geosciences, University of Arizona

Key Registrations & Certifications Professional Geologist

▬ Arizona (Pending)

▬ Washington

Asbestos Inspector ▬ Montana

Hazardous Material Manager Certificate

Robert Alexander, RG Quality Assurance

Silver Bow Creek/Butte Superfund Site Expedited Remedial Actions & Response U.S. Environmental Protection Agency (MT)

Served as the project manager and scientist for a variety of projects that included potentially responsible party (PRP) oversight of expedited response actions involving the removal of over 1-million cubic yards of mill tailings at the Lower Area One OU and the implementation of a unique remedial action at the Rocker Timber Treating Plant utilizing iron to treat arsenic-containing source materials. Also, arsenic and lead in residential yards were addressed under the Priority Soils NTCRA and railroad bed response actions under the Railroad Beds TCRA.

Anaconda Smelter NPL Site Remediation U.S. Environmental Protection Agency (MT)

Served as the project manager and environmental scientist for the project, which involved a multiple OU sites containing several hundred million cubic yards of milling and smelting wastes and tens of square miles of soils contaminated by arsenic and heavy metals generated from nearly 100 years of smelting activity.

Responsibilities included budget tracking, project scheduling, technical resource management, and technical support for six operable units managed by two Remedial Program Managers. Each operable unit was in a different phase of the CERCLA process.

Mr. Lo is an environmental engineer with 12 years of experience in remediation.

His experience includes site investigation, remedial alternatives and cost estimate development; treatability study design and implementation; remediation system design, operation and monitoring plan development; and project management. He has been involved in projects utilizing various remediation technologies including in-situ bioremediation, in-situ chemical oxidation, in-situ stabilization, soil vapor extraction, dual-phase extraction, in-situ thermal remediation, excavation and disposal, and groundwater extraction and treatment. He has a chemical engineering background and extensive research experience in microbial ecology.

Hunters Point Naval Shipyard - Parcels C, E & F NAVFAC – Southwest (CA)

Served as a task leader and project engineer and was involved with the design, planning, and execution of injection of amendment mixture into contaminated plumes via hydraulic fracturing. He was a key contributor for the Parcel C remedial action monitoring report where statistical evaluations are performed for all monitoring wells to assess remedial progress and potential needs. He was also responsible for performing a comprehensive environmental footprint analysis to compare various remedial alternatives for remediation of a dense non-aqueous phase liquids (DNAPL) plume.

Playa Vista Groundwater Remediation & Dual-Phase Extraction/Treatment Confidential Client (CA)

Serving as the project manager and design engineer for an ongoing remediation project involving groundwater and dual-phase extraction (DPE) and treatment. Key responsibilities include conducting rebound testing and providing associated reporting at various source areas in the Campus area, as well as leading the expansion design for the Ballona Aquifer Containment and Expansion System (both groundwater extraction and DPE) and is in the process of leading an optimization effort for reducing operation and maintenance effort and required system footprint.

Firm CDM Smith

Location Concord, CA

Years of Experience 12 years (Total)

10 years (At Firm)

Education MS, Environmental Science, University of California – Berkeley

BS, Chemical Engineering, University of Wisconsin – Madison

Key Registrations & Certifications Professional Engineer

▬ California

Project Management Professional

OSHA Certificate ▬ 40-hour HAZWOPER

Ian Lo, PE, PMP Project Manager

West Side El Monte Operable Unit – San Gabriel Superfund Site Remediation Services Hermetic Seal Corporation (CA)

Serving as the project engineer for a private client’s property located in El Monte, CA, where groundwater impacted with nitrate, perchlorate, 1,4-dioxane, and hexavalent chromium is being extracted and treated. The treatment train includes granular activated carbon and a fluidized bed bioreactor to address the various constituents in the groundwater.

Responsible for coordinating O&M needs as well as oversight for system operation and developing/tracking performance processes.

Santa Susana Field Laboratory Remediation U.S. Department of Energy (CA)

Served as a task leader and project engineer and was responsible for the development of the evaluation of remedial alternative. Under Department of Energy (DoE) oversight, Mr. Lo also developed a remedial alternative and associated cost estimates, conducted a risk-benefit analysis, and performed green and sustainable remediation evaluation that ultimately led to the final site EIS. The task required intensive management of the schedule due to an aggressive schedule, and coordination with a number of staff including cost estimators, engineers, senior scientist, and risk assessors.

Mr. Kelley is a proven project manager, professional geologist, and certified project management professional with nine years of experience. He specializes in Superfund remedial investigations and feasibility studies to collect data, determine the nature of the waste, assess risk to human health and the environment, evaluate the potential performance and costs, screening, and alternatives evaluation. He regularly oversees team/client coordination and remediation services for soil, air, and groundwater at Superfund sites. He has led preparation of field guidance documents (QAPP, SAP, FSP), led field sampling efforts, monitoring, permitting compliance, and technical report writing.

Clovis Landfill Annual Well Monitoring Services City of Clovis (NM)

Served as a task leader and geologist and is responsible for monitoring wells for the City on a semi-annual basis, as required by the Landfill’s operating permit. Tasks include taking depth to water readings, measuring field parameters, and collecting samples for laboratory analysis in accordance with procedures outlined in the Landfill’s groundwater monitoring plan. Following the sampling event, Mr. Kelley completes the monitoring report and updates an internal database with sampling results to keep up to date statistics, used in the monitoring report.

BN Livingston State Superfund Site Remediation U.S. Environmental Protection Agency (MT)

Served as a project manager and geologist for and was responsible for providing oversight on behalf of Montana DEQ for drilling activities at the Livingston railyard. As project manager, he provided client and agency coordination, project resource management, buget and schedule tracking, technical review, and quality control. As a geologist, he oversaw sonic drilling, coring, and installation of five wells at the site. He also provided oversight of drilling crew, as well as the lead consultant on behalf of Montana DEQ. Also provided daily activity reports to the DEQ at the end of each work day.

Firm CDM Smith

Location Helena, MT

Years of Experience 9 years (Total)

9 years (At Firm)

Education BS, Geology, Castleton University

Key Registrations & Certifications Professional Geologist

▬ Utah

OSHA Certificate

USACE Construction Quality Management for Contractors Certificate

Connor Kelley, PE, PMP Project Manager

Santa Susana Field Laboratory Remediation U.S. Department of Energy (CA)

Served as a geologist and was responsible for performing low-flow sampling activities at the Santa Susana site, which is a surplus multiple-use facility located on 2,668-acres of the Simi Hills. Since the 1950s, SSFL had been used to develop rocket engines and test nuclear energy concepts and applications for liquid metals. Key tasks included hiking to the seep locations, purging three volumes of water using low flow practices, collecting water samples in laboratory approved bottles, and packing samples in coolers for shipment to the laboratory.

Albuquerque International Sunport Universal & Hazardous Waste Plan Albuquerque International Sunport (NM)

Served as a task leader and geologist and was responsible for reviewing current state and federal hazardous and universal waste regulations to update the Albuquerque International Sunport’s Universal and Hazardous Waste Plan that that complies with EPA’s RCRA framework. He also developed Standard Operating Procedures for work involving hazardous materials, equipment and/or operations Following completion of the plan update, Mr. Kelley also participated in a training with applicable Sunport employees who could potentially handle universal and hazardous waste.

Ms. Mead is a project manager with experience providing cradle-to-grave management of multi-certified environmental services, and dangerous goods specialist with over right years of experience working in the regulatory compliance industry. She has liaised between business and technical areas to develop grants and proposals that include scopes for environmental and dangerous goods works. As a result, Ms.

Mead is well-versed in structuring programs for compliance with international, national, and regional hazardous materials and environmental regulations, and also has L-level clearance through the DoE, which allow access to Secret National Security Information and to Special Nuclear Material categories 3 and 4.

Radiological Controls, Waste Characterization & Chemical Mgmt BWX Technologies, Inc. (ID)

Prior to CDM Smith Ms. Mead worked as an environmental waste and chemical specialist responsible for evaluating radiological controls, waste characterization and disposition and chemical management for a large company providing nuclear construction and remediation services to the U.S. Navy at the Naval Reactor Facility at the Idaho National Laboratory. She performed 20+ yearly walk-downs of facilities/areas to identify necessary environmental and waste characterization activities to ensure compliance with applicable regulations.

Fort Hall Mine Landfill Groundwater Remediation Bannock County (ID)

Served as the assistant project manager providing quality control reviews and support for the remedial investigation, environmental, engineering, O&M, and remediation pilot testing at this historically contaminated unlined municipal landfill. She is currently supporting the team as part of an ongoing effort to develop a Conceptual Site Model (CSM) to evaluate a groundwater contaminated with VOCs which is emanating from Cell 1 of the Fort Hall Mine Landfill (FHML), impacting the Lower Portneuf Valley Aquifer and posing a risk to the City of Pocatello’s drinking water supply.

Firm CDM Smith

Location Kellogg, ID

Years of Experience 9 years (Total)

1 year (At Firm)

Education MS, Environmental Science, University of Idaho

Certificate, NAVSEA 389-0288 – Article 108 Qualification, Radiological Control Technician Qualification School, United States Navy

BS, Biology, University of Idaho

BS, Environmental Science, University of Idaho

Key Registrations & Certifications Hazardous Waste Worker Certificate

Satellite Accumulation Area Operator Certificate

Department of Energy Naval Reactor Facility Certificate – L-Clearance

Asbestos Supervisor Certificate

OSHA Certificate ▬ 30-Hour Construction

Safety & Health

Adria Mead Project Manager

The Council on Safe Transportation of Hazardous Articles International Vessel Operators Dangerous Goods Association (Nationwide)

Served as a regulatory compliance specialist and was responsible for providing comprehensive project lifecycle management from working with clients to develop proposals with scopes of work with budgets and schedules to executing projects for a small business dangerous goods specialty firm. She performed regulatory compliance audits for companies that manage hazardous materials and hazardous waste according to OSHA, EPA, DOT and applicable international regulations.

Lead Service Line Replacement Program Aurora Water (CO)

Serving as the deputy project manager and responsible for supporting the development of project scope and providing team oversight as the a lead service line replacement program takes shape. These responsibilities include quality control and management over the initial customer inventory of lead and galvanized services lines in the city; public outreach and education, securing federal funding to support replacements of lead and galvanized service lines, replacement work and data management for all aspects of the program.

Ms. Burkman is an environmental engineer and project manager with 24 years of experience in water and wastewater engineering, including process technology evaluation and design, preliminary and final engineering design, conveyance studies and design, engineering services during construction, and preparation of environmental permitting and compliance documents. She has been supporting BIM practices for over 15 years and regularly leverages 3D models through project planning, design and construction phases. Utilizing a variety of 3D modeling platforms, she has implemented best practices, standards and workflows on projects to identify constructability issues, visualize operations, and mitigate project risk.

Phoenix Environmental On-Call Services City of Phoenix Aviation Department (AZ)

Since 2007, CDM Smith has partnered with the City to implement SWPPPs for the three Phoenix airports: Sky Harbor International, Phoenix-Deer Valley, and Phoenix-Goodyear airports. In 2011, Ms.

Burkman became the project manager for this project, in which, she oversees quarterly compliance inspections of over 100 designated facilities. These inspections consist of a walk-through of each facility to verify the implementation and effectiveness of appropriate control measures. She also provides oversight of outfall visual assessments, development and management of a web-based data management system.

ADEQ Lead Service Line Inventory Arizona Department of Environmental Quality (AZ)

Serving as project manager for ADEQ’s response to the Lead and Copper Rule (Safe Drinking Water Act), where EPA requires all community and non-transient non-community public water systems to create a lead service line inventory to identify the materials for every service line in their water service area by October 16, 2024. In response to this challenge, ADEQ is providing technical support to small systems to comply with the new regulations.

CDM Smith is partnering with ADEQ to aid 155 small systems inventory their lines and report results to both ADEQ and EPA.

Firm CDM Smith

Location Sacramento, CA

Years of Experience 24 years (Total)

24 years (At Firm)

Education MS, Environmental & Water Resources Engineering, University of Texas – Austin

BS, Environmental Engineering & Applied Math, University of California – Riverside

Key Registrations & Certifications Professional Engineer

Board Certified Environmental Engineer

NASSCO Pipeline Assessment Certificate

OSHA Certificate

Hazardous Waste

Misti Burkman, PE, BCEE Project Manager

Stormwater Pollution Prevention Plans & SPCC Plan & Spill Prevention, Control & Countermeasure Plan Confidential Client (UT)

Served as the project manager and worked with the manufacturer to identify the permits that were required for the facility. Also responsible for development of a SWPPP and SPCC Plan for their facility in Utah. She aided with the preparation of the Notice of Intent for the Multi-Sector General Permit.

A plant-wide air emission inventory was also prepared, which was used to determine if their air emissions sources required permitting. CDM Smith has updated the SPCC to account for an additional petroleum storage.

Phoenix Stormwater Compliance City of Phoenix Aviation Department (AZ)

Serving as the project manager since 2014, when CDM Smith was selected to provided environmental on-call services for the City of Phoenix Aviation Department and their three airports;

Phoenix Sky Harbor International Airport (PHX), Phoenix Deer Valley Airport (DVT), and Phoenix Goodyear Airport (GYR). Through the on-call, CDM Smith performed the following key tasks and services: Panoramic Storm Drain Inspection and Interactive Mapbook;

Spill Tracing Tool & Application Development; On-Call Spill Response Services; and Spill Prevention, Control, and Countermeasure contracts.

Mr. Bamer is an environmental engineer with 23 years of experience and specializes in planning, designing in-situ and ex-situ soil, groundwater and soil vapor treatment systems and remediation processes, as well as oversight of construction. He has experience in evaluating site data, developing design alternatives and cost estimates, managing design development, writing process control descriptions, creating process flow and piping and instrumentation diagrams, implementing in-situ bioremediation slug injections and biorecirculation systems—often in challenging soil matrices and target areas—permitting system construction and discharges, optimizing existing systems, and performing third-party reviews.

Groundwater & Soil Vapor Extraction & Treatment System Remedial Design Confidential Client (CA)

Served as the design lead of an industrial site that had been impacted by historical chlorinated solvent releases on the property and upgradient, all of which have impacted a downgradient municipal supply well.

Developed a Conceptual Site Interim Measures Plan, which evaluated site conditions and analyzed potential interim remedial action alternatives and their costs. Also developed an Interim Measures Work Plan, further developing the selected interim remedial action, which constituted groundwater and soil vapor extraction and treatment from beneath the impacted and active facility.

West Side El Monte Operable Unit Superfund Site Remediation Services Hermetic Seal Corporation (CA)

Served in the project technical, design lead and engineer, and technical review roles on this multi-year, multi-million dollar contract to provide services where regional groundwater was impacted with chlorinated solvents, nitrate, perchlorate, and low levels of chromium (IV). Designed an innovative groundwater treatment system that includes an anaerobic fluidized bed bioreactor (FBR) and liquid-phase granular activated carbon. Also successfully developed arguments to the EPA and the RWQCB to not require treatment of settleable solids (biological floc), which saved the client over $1M.

Firm CDM Smith

Location Denver, CO

Years of Experience 23 years (Total)

21 years (At Firm)

Education MS, Environmental Engineering, University of California – Berkeley

BS, Engineering (with Honors), Harvey Mudd College

Key Registrations & Certifications Professional Engineer

OSHA Certificate ▬ 40-hour Hazardous

Waste Health & Safety ▬ 8-hour Hazardous

Waste Health & Safety ▬ 10-hour Construction

Safety & Health

Jeff Bamer, PE Environmental Engineer

Chemical Sales Superfund Site Focused Feasibility Study & Field Scale Pilot Colorado Department of Public Health & Environment (CO)

Served as the project manager to develop a focused feasibility study for addressing 1,4-dioxane concentrations identified within the site footprint that had previously moved through the CERCLA process for VOC contamination.

Previous efforts to address the 1,4-dioxaane via in-situ chemical oxidation had not been successful and CDM Smith was hired to leverage its knowledge of all remedial options, both conventional and novel, to develop a path forward for the State within a Focused Feasibility Study (FFS).

Hawthorne Site Remediation Design-Build-Operate Confidential Client (CA)

Served as a design lead for long-running project/program of environmental work at a confidential facility. The site is a large with multiple sources and existing remediation equipment. Work began with a pilot test that was initiated by a previous consultant that “fouled” and inoperable. After encountering difficulty getting approval from the RWQCB, CDM Smith developed alternative strategies to get the pilot test operational with modifications of the ex-situ equipment and biofouling management tactics to prevent biofouling in the new injection well.

Mr. Lamar is an environmental engineer with 22 years of experience in environmental and groundwater remediation projects. He has been involved in the characterization, evaluation, design and implementation of many in-situ remediation efforts and has extensive experience working with private, state, and federal clients to evaluate innovative solutions for contaminant clean-up, primarily focusing on designing innovative in-situ remedial strategies for contaminated groundwater, He also specializes in emerging contaminants and conceptual modeling for groundwater assessment and treatment, bench-scale studies, performance studies, tracer studies, extraction oversight, R&D, and in-situ groundwater design and construction.

Bountiful/Woods Cross Operable Unit 1 Superfund Site In-Situ Bioremediation U.S. Environmental Protection Agency (UT)

Served as a project engineer and technical specialist on RA activities to address a complex site of challenging lithology with NAPL sorbed to low permeability units, successful use of HRSC to update the 3D CSM, and highly innovative technologies such as in-situ bioremediation with permeability enhancement and biobarriers. Work is complete and the site has transitioned to monitored natural attenuation. Key RAs included in-situ injection of sodium lactate and emulsified oils into one source area and three sets of biobarriers (more than 200 total wells) to stimulate enhanced reductive dechlorination of chlorinated ethenes.

Chemical Sales Superfund Site Focused Feasibility Study & Field Scale Pilot Colorado Department of Public Health & Environment (CO)

Served as a technical lead and task leader to develop a focused feasibility study for addressing 1,4-dioxane concentrations identified within the site footprint that had previously moved through the CERCLA process for VOC contamination. Previous efforts to address the 1,4-dioxaane via in-situ chemical oxidation had not been successful and CDM Smith was hired to leverage its knowledge of all remedial options, both conventional and novel, to develop a path forward for the State within a focused feasibility study, and a follow-on field scale pilot study.

Firm CDM Smith

Location Denver, CO

Years of Experience 22 years (Total)

22 years (At Firm)

Education MSCE, Environmental Engineering, University of Texas – Austin

BS, Chemical Engineering & Petroleum Refining, Colorado School of Mines

Key Registrations & Certifications Professional Engineer

▬ Colorado

OSHA Certificate ▬ 40-hour HAZWOPER

Project Management Professional

Michael Lamar, PE, PMP Environmental Engineer

Environmental Security Technology Certification Program R&D Study Confidential Client (CA)

Served as a project engineer for an ESTCP-funded R&D project to evaluate in-situ treatment of 1,4-dioxane in groundwater.

The project demonstrated the innovative use of slow-release persulfate cylinders as an in-situ remedy for large and/or dilute plumes of 1,4-dioxane and VOCs.

Successful implementation of this innovative technology would provide a long-term, cost-effective solution to mitigating 1,4-dioxane plumes as they migrate downgradient. Mr. Lamar was responsible for design of the field-implementation and oversaw field activities.

NMED Site Characterization & Remedial Action New Mexico Environment Department (NM)

Served as a task leader and engineer for a NMED-led Superfund project. The project includes a multi-component EAB system at a State-led chlorinated solvent contaminated site. The remedy includes operation of a biocurtain, which uses recirculation to distribute amendment perpendicular to the contaminant plume, as well as slug injections into the contaminant source area and deep zones of the aquifer.

Responsible for designing and implementing both source area and biobarrier (ERD) injections and is led an investigation to evaluate if source mass remains in low permeability aquifer materials.

Mr. Smith is an environmental engineer with over 20 years of experience in soil and groundwater remediation and site characterization activities for government and industrial clients. He has served as a technical leader, task leader, project manager, or lead design engineer on multiple remediation projects, including in-situ bioremediation, in-situ chemical oxidation, in-situ chemical reduction, excavation, soil vapor extraction, groundwater extraction and treatment, thermal remediation, and natural attenuation. He has also led numerous projects implementing innovative methods and in-situ remediation technologies in challenging low-permeability media, as well as characterizing nature and extent of contaminated sites and soils.

Bountiful/Woods Cross Operable Unit 1 Superfund Site In-Situ Bioremediation U.S. Environmental Protection Agency (UT)

Served as project technical lead and resident engineer during site characterization and implementation of enhanced anaerobic bioremediation for chlorinated solvent contaminant source area. Field work entailed health and safety oversight, direct-push soil and groundwater sampling, subsurface characterization utilizing membrane interface probe and electrical conductivity probe, installation of groundwater monitoring and injection wells utilizing hollow-stem auger drilling methods, including monitoring wells installed in artesian aquifer conditions, and oversight of injection well installation.

700 South 1600 East PCE Plume Superfund Site U.S. Army Corps of Engineers (UT)

Served as project technical lead for the site-wide remedial investigation of a large dilute PCE plume emanating from a former dry-cleaning operation at a hospital in a developed residential and commercial area. Impacted media at the site include soil, soil vapor, indoor air, and ground-water present in shallow and deep aquifer intervals. The plume is present in challenging geological conditions, with groundwater at a depth of nearly 200 ft in the source area transitioning to a confined/artesian aquifer with springs and discharge to surface water occurring at the toe of the plume.

Firm CDM Smith

Location Denver, CO

Years of Experience 20 years (Total)

16 years (At Firm)

Education MS, Environmental Engineering, University of Colorado – Boulder

Certificate, Environmental Policy, University of Colorado – Boulder

BS, Civil Engineering, Colorado School of Mines

Key Registrations & Certifications Professional Engineer

OSHA Certificate

Neil Smith, PE Environmental Engineer

Hunters Point Naval Shipyard - Parcels C, E & F NAVFAC – Southwest (CA)

Served as a project engineer and responsible for field sampling and oversight of subcontractors conducting a treatability study for remediation of chlorinated solvents present within a low-permeability bay mud formation. The treatability study included a combination of remedial technologies to address residual DNAPL and dissolved-phase contamination.

Technologies used include hydraulic fracturing and emplacement of a solid-phase combination of carbon and zero-valent iron, thermal conductive heating to remediate source areas, and electron donor injection as a polishing phase.

NMED Site Characterization & Remedial Action New Mexico Environment Department (NM)

Served as a project engineer and responsible for directing a field investigation to evaluate if chlorinated solvent source mass remains in low-permeability aquifer materials and whether the plume boundaries had been identified in the source area and biobarrier. Investigation included advancement of sonic boreholes and extensive soil and groundwater sampling and analysis using an onsite mobile laboratory. Data was used to evaluate and recommend optimization strategies for the ongoing in-situ bioremediation/biorecirculation remedy.

Dr. Macbeth is an internationally recognized remediation expert with 24 years of experience in the development, demonstration, design and implementation of innovative, cost-effective remedial strategies for cleanup of hazardous waste contaminated sites. She served as principal investigator, manager and/or technical lead and advisor for more than 100 government, private and international contaminated sites undergoing characterization, design, and remediation at the laboratory-scale, pilot-scale and full-scale. Her work leverages her interdisciplinary academic and research background in microbiology and engineering to advance remediation technologies (in-situ bioremediation, natural attenuation, etc.).

North Railroad Avenue Plume Superfund Site New Mexico Dept. of Environment (NM)

Served as an environmental engineer for a remedy evaluation, development of a high-resolution 3D conceptual site model, remedy implementation and optimization of in-situ bioremediation for a source area, and biocurtain remedy to address a complex chlorinated solvent groundwater plume. Also reviewed project files and made recommendations to improve the treatment efficiency, reduce O&M issues such as corrosion, biofouling and biogenic gas production above LEL, reviewed the remedial design and evaluated alternatives to address deep contaminant plume not addressed by the current remedy.

DoE PFAS Environmental Sampling Guidance U.S. Department of Energy (Nationwide)

Served as an environmental engineer and was responsible for drafting the PFAS Environmental Sampling Guidance for DoE to satisfy the goals and objectives presented in the first pillar of DoE’s PFAS Strategic Roadmap:

DoE Commitments to Action 2022- 2025 (DoE, 2022). The ESG outlines a framework for sampling PFAS emerging contaminants at DoE owned or operated entities complex-wide. Investigative techniques included procedures for assessing the presence of PFAS, identifying the nature and extent of contamination, and PFAS migration from those sources to receptors.

Firm CDM Smith

Location Helena, MT

Years of Experience 24 years (Total)

16 years (At Firm)

Education PhD, Civil & Environmental Engineering, University of Idaho

MS, Environmental Engineering, Idaho State University

BS, Microbiology, Idaho State University

Key Registrations & Certifications Professional Engineer

▬ Idaho

Board Certified Environmental Engineer

OSHA Certificate

Supervisor

Tamzen Macbeth, PhD, PE, BCEE Environmental Engineer

Fort Hall Mine Landfill Groundwater Remediation Bannock County (ID)

Serving as the project technical lead to develop technical strategy and bringing together a team of multi-disciplinary engineers, scientists to revise a failed pump and treat remedy. Also led a team to update a Conceptual Site Model using innovative high-resolution site characterization technologies such as FLuTe, soil boring, geophysics, hydraulic testing, molecular diagnostic tools including DNA and RNA analysis and compound specific isotope analysis to evaluate the VOC plume emanating from Cell 1 of the Fort Hall Mine Landfill posing a risk to the City of Pocatello’s drinking water supply.

Hunters Point Naval Shipyard — Parcels C, E & F NAVFAC – Southwest (CA)

Served as the project technical lead and responsible for developing the technical strategy for the Hunters Point Naval Shipyard (HPNS) project to clean up contaminated groundwater for multiple sources and plumes throughout the Parcel C area. Using high-resolution site characterization and state-of-the-art cleanup technologies, including in-situ bioremediation and chemical reduction alone and in combination for multiple chlorinated solvent plumes per the CERCLA ROD. Also used adaptive decision support tools to evaluate the most cost-effective and sustainable technologies.

Mr. Silvertooth is an environmental engineer 11 years of environmental engineering experience and specializes in environmental site characterization and remediation involving contaminated surface water, groundwater, soil, sediment, and stormwater.

He has firsthand experience with hydrology and biogeochemistry of ephemeral washes in Southern Arizona and is regularly responsible for developing investigation plans, performing fieldwork, analyzing data, evaluating remedy options, and authoring technical reports. He also conducts and leads field investigations and has extensive experience with task management and development of project deliverables, as well as data reduction and analysis.

Portland Harbor Superfund Site – River Mile 10 West U.S. Environmental Protection Agency (OR)

Serving as a task manager and engineer for the River Mile 10 West (RM10W) project area at the Portland Harbor Superfund Site. As task manager, he is responsible for managing staff and budget and serving as the EPA remedial project manager’s main point of contact for the RM10W project area.

He identifies project staff to support reviews of contractor remedial design deliverables and preforms final review of all CDM Smith deliverables before they are submitted to the client to ensure they meet quality requirements and are consistent with other project areas throughout the site.

Santa Clarita Soil Remediation Site Investigation & Excavation Confidential Client (CA)

Served as a project engineer and was responsible for overseeing contractor excavations and soil mixing operations during remediation of contaminated soil at the former Whitaker-Bermite facility,which is a 996-acre site that was formerly used to manufacture military munitions and explosive devices. Also successfully guided the project through several key milestones and projects, including monitoring water and nutrient influxes to excavated soil to verify proper dosing ratios were used for bioremediation, collected soil samples, and performed air quality monitoring across the site.

Firm CDM Smith

Location Phoenix, AZ

Years of Experience 11 years (Total)

10 years (At Firm)

Education MS, Environmental Engineering, Oregon State University

BS, Environmental Science, University of Arizona

Key Registrations & Certifications Professional Engineer

▬ Oregon

OSHA Certificate

Safety & Health ▬ First Aid & CPR

Jason Silvertooth, PE Environmental Engineer

Black Butte Mine Superfund Site Environmental Investigation U.S. Environmental Protection Agency (OR)

Served as the project engineer and technical leader for the remedial investigation. Responsible for guiding overall technical direction, building and developing the project team, and ensuring fieldwork and project deliverables meet quality requirements and expectations.

He works with the project manager to drive the vision and performance of the project and identify project needs. He also leads regular meetings with the client and other stakeholders and has facilitated multiple systematic planning meetings to identify gaps and reach consensus on the next steps.

Formosa Mine Superfund Site Surface & Groundwater Remediation Douglas County (OR)

Served as a project engineer , field safety officer, and team leader.

Responsible for monitoring surface water, groundwater, soil, and tailings.

Monitoring activities included surface water and groundwater sampling, maintenance of two surface water monitoring stations, measurement of stream discharge, data downloads from transducers, and soil sampling for chemical and geotechnical analysis.

Also served as field team leader and site health and safety officer responsible for implementing the work plan and training junior employees on field techniques.

Mr. Carreon is an environmental engineer and project manager with 12 years of experience assisting managing, designing, constructing, and operating environmental projects of varying complexities. His career has included being a contributing or lead author on multiple milestone documents including remedial investigations, feasibility studies, proposed plans, records of decision, and design reports and specifications. He has served as the design and resident engineer for many remedial design, remedial action, and industrial wastewater projects, as well as a key resource and presenter on behalf of state and federal agencies during responsible party negotiations and in-person public meetings.

Silver Bow Creek/Butte Area Superfund Site Projects U.S. Army Corps of Engineers (MT)

Served as the project technical lead for the project and worked closely with the project manager to help manage scope, schedule, and budget. He facilitated regular meetings with EPA and managed project team members reviewing potentially responsible party document submittals.

Warm Springs Ponds is a CERCLA regulated site. These projects include potentially responsible party oversight of expedited response actions involving the removal of over 1-million-cubic-yards of mill tailings at the Lower Area One OU) and the implementation of a unique remedial action at the Rocker Timber Treating Plant.

700 South 1600 East PCE Plume Superfund Site U.S. Army Corps of Engineers (UT)

Served as an environmental engineer on a remedial technology screening memorandum as well as multiple treatability study work plans. He authored several data summary reports and contributed to the remedial investigation report, as well as assisted with the soil classification, logging, sampling, and monitoring well construction associated with approximately 350-ft-deep soil borings.

Sonic drilling and zone isolation sampling technologies (ZIST) were also implemented to support the critical drilling and monitoring well installation activities.

Firm CDM Smith

Location Helena, MT

Years of Experience 12 years (Total)

4 years (At Firm)

Education BS, Bio-Resource Civil Engineering, Montana State University

Key Registrations & Certifications Professional Engineer

▬ Montana

MSHA 40-hour Part 48 Certificate

FAA Part 107 Certificate

RCRA Hazardous Waste Generator Certificate

OSHA Certificate

Administration ▬ 8-hour HAZWOPER

Supervisor ▬ 30-hour

Construction Safety ▬ Confined Space Entry

Ben Carreon, PE Environmental Engineer

Anaconda Aluminum Co. Columbia Falls Reduction Plant Superfund Site U.S. Environmental Protection Agency (MT)

Served as the project technical lead for this post remedial investigation and feasibility study project which includes working closely with the project manager to help manage scope, schedule, and budget. As the technical lead, He also worked closely with several CDM Smith and EPA project team members to develop a proposed plan and record of decision, as part of the CERCLA process.

Additional responsibilities included supporting EPA with presenting results of the feasibility study to the community at an in-person public meeting. CFAC is a CERCLA regulated site.

Fort Hall Mine Landfill Soil Improvements Bannock County (ID)

Serving as the project technical lead for an ongoing seepage evaluation that consists of installing soil moisture sensors and data loggers for passive logging of soil moisture data. Soil moisture data is paired with lysimeter volumes to quantify potential infiltration through the landfill cap. Other activities include performing double-ring infiltrometer tests and calculations.

Also serving as the field team leader for aquifer performance testing and remediation system upgrades, which consisted of transducer deployment and data downloads for flow modeling.

Ms. Myers is a geologist with 12 years of experience in a range of environmental investigation and remediation project work. She is meticulous and skilled in geologic mapping, soil classification, well development and rehabilitation, and aquifer pump tests. She is proficient in air photo interpretation, and geotechnical data management software (gINT) software and skilled in mapping and geophysical surveying including experience in seismic reflection and refraction, ground penetrating radar, gravity, geothermal well logging, magnetic, electromagnetic, and magnetotelluric surveys.

Project scopes of work have ranged from safety oversight, field investigations, soil, groundwater, and soil vapor sampling, permitting, data analysis, and reporting.

700 South 1600 East PCE Plume Superfund Site U.S. Army Corps of Engineers (UT)

Served as a geologist and site safety officer for PCE plume investigation involving a dry-cleaning facility at the George E. Wahlen VA Hospital. Ms.

Myers was one of several rotating field team leads during an extended field investigation providing safety oversight during drilling operations, coordinating site access for the drill crew and investigation teams, conducting soil and groundwater sampling, logging soil cores, training summer interns on field methodology, and coordinating operations with the client, waste disposal services, project management, and other field teams.

Hunters Point Naval Shipyard - Parcels C, E & F NAVFAC – Southwest (CA)

Served as a geologist and was responsible for collecting soil samples and logging soil cores to map the extent of historic contamination plumes (including PCBs, VOCs, TPH, and metals) generated from naval activity on Hunter’s Point Naval Shipyard. She ran a Frog4000 gas spectrometer to measure VOCs real-time in the field to help guide the investigation. Additionally, she was Site Safety Officer and helped oversee injection remediation at two contaminant plumes on site using both zero-valent iron amendment and bio-augmentation cultures in more than 40 boreholes.

Firm CDM Smith

Location Concord, CA

Years of Experience 12 years (Total)

8 years (At Firm)

Education MS, Geophysics, University of Minnesota

BA, Geology, University of Minnesota

Key Registrations & Certifications Professional Geologist

▬ California

OSHA Certificate

Construction Safety ▬ Hazardous Waste

Supervisor

Kimberly Myers, PG Geologist

Fresno Sanitary Landfill Groundwater Remediation Pump-and-Treat System City of Fresno (CA)

Serving as a geologist for the ongoing project and assisted with the preparation of annual reports which evaluate the performance of the groundwater remediation pump-and-treat system.

Responsible for oversight during well decommissioning operations of groundwater monitoring wells which were dry due to regional declines in the water table elevation. Also provided oversight for well installation and development for the third phase of the remediation program, assisted with aquifer pump tests during well installation, assisted with well rehabilitation.

Fort Hall Mine Landfill Groundwater Remediation Bannock County (ID)

Served as a task leader and geologist for the project at an active facility operating under the RCRA. CDM Smith is providing groundwater remediation services to characterize and address landfill leachate, including chlorinated solvent DNAPLs, impacting groundwater in alluvium and the weakly indurated, conglomeratic Tertiary Starlight Formation underlying the site.

Under a consent order with the Idaho Department of Environmental Quality (IDEQ), cleanup efforts are underway for a closed and unlined cell of FHML where chlorinated solvent DNAPLs and other chemicals leached to groundwater.

Mr. Chen is an environmental professional with 20 years technical and consulting experience.