CTR072296_Amendment_5_-_Adds_Key_Personnel.pdf

Form approved by CPO, Rev. 12-18-2018

CONTRACT

AMENDMENT

CONTRACT NO.: CTR072296

AMENDMENT NO.: 5

TITLE: ASRAC Assessment and Remediation of Hazardous Substances CONTRACTOR: CDM Smith, Inc.

ADEQ PROCUREMENT

1110 W. Washington Street Phoenix, AZ 85007 602-771-4140

THE PURPOSE OF THIS AMENDMENT IS TO:

In accordance with the Uniform Terms and Conditions, 5.1 Amendments, this contract is hereby amended as follows:

1. Add the following key Personnel:

• Kevin Pasternak, PG, Professional Level VI

2. All other Requirements, Specifications, Terms and Conditions remain unchanged.

THE ABOVE REFERENCED AMENDMENT IS A

UNILATERAL ACKNOWLEDGEMENT OF

CONTRACTOR’S APPROVED CHANGED

REQUEST.

ARIZONA DEPARTMENT OF ENVIRONMENTAL QUALITY

The above referenced Amendment is hereby executed this 6th day of March 2025 at Phoenix, Arizona.

Ana Machiche Procurement Officer

Available online at Arizona Procurement Portal (APP) eProcurement System https://app.az.gov https://app.az.gov/

KEVIN PASTERNAK, PG

EXPERIENCE & RESPONSIBILITIES

Mr. Pasternak is a Sr. Hydrogeologist and Project Manager specializing in subsurface investigations of contaminated soil and groundwater, remedial actions, and site management. He has 25 years of professional experience with soil and groundwater quality, groundwater surface water interaction, soil and groundwater contaminant fate and transport, aquifer testing, and groundwater and soil remediation. He has provided geologic and hydrogeologic services for multiple sites impacted by a wide range of constituents of concern (COCs) including volatile organic compounds (VOCs), nonaqueous-phase liquids (NAPL), metals, radionuclides, brine, explosives, and pesticides. Mr. Pasternak’s role and responsibilities as a Sr. PM include leading teams of geologist, environmental scientist, and engineers in developing, implementing, interpreting, and presenting soil and groundwater analytical data to determine the presence or absence of contaminants the nature and extent of the contamination, aquifer classification, groundwater availability, determination of suitable remedial alternatives, remedial design and communications with state and federal regulators. As a site manager, he has managed the daily operations of field crews performing environmental sampling, drilling, excavations, operation and maintenance of remediation systems, and surface water and groundwater studies.

AREAS OF EXPERTISE

Site CSM Development Groundwater Hydrogeology and Geochemistry Aquifer Testing Flow and Solute Transport in Porous and Fractured Media Groundwater and Soil Remediation NAPL Recovery Environmental Site Investigations Remediation Design Project Management Development of Site Specific Risk Based Screening Levels

PROJECT EXPERIENCE

Market Sector – Oil and Gas Delek Hawley, Texas.

Project Role: Sr. PM/Hydrogeologist. Performed oversight of 22,000 cubic yards of TPH and lead contaminated soil and performed waste management oversight for the offsite disposal of the excavated soil. Prepared Groundwater Monitoring Reports to define the extent of site COCs in groundwater and interpreted geochemical indicator parameters to document natural attenuation.

Baker Hughes, Soil Excavation and Restoration, Yukon, Oklahoma.

Project Role: Sr. PM/Hydrogeologist. Prepared soil field screening procedure for TDS used in the field to delineate excavation extent to the OCC cleanup limits for brine impacted soils. Laboratory samples confirmed the field screening data, and approximately 360 cubic yards of brine-impacted soil was manifested, transported, and disposed of to an appropriate landfill. The excavation was backfilled with clean

EDUCATION

B.S. Geological Sciences, Jackson School of Geosciences, the University of Texas at Austin

M.S. Hydrogeology, Graduate Program of Hydrologic Sciences, University of Nevada, Reno

REGISTRATION

Texas Professional Geoscientist #2469

Wyoming Professional Geologist #PG-4358

Arizona Registered Geologist #80367

Illinois Professional Geologist #196.001131 (inactive)

CERTIFICATIONS

Texas LPST Project Manager #570

SPECIALIZED TRAINING

OSHA 1910.120 – 40 Hours

OSHA 8-Hour Supervisor/Manager Training

Association of Reciprocal Safety Councils, Inc. Basic Orientation Plus Training

ITRC’s LNAPL: Science, Management, and Technology

Rice University, Natural Attenuation of Groundwater Contaminates: New Paradigms, Technologies, and Applications

American Heart Association CPR - 1st Aid Training soil, re-graded, and seeded. A soil removal and site restoration report documenting the site work and recommending NFA for site soils was prepared. OCC reviewed the document and concurred with site closure with NFA required.

Baker Hughes, Odessa Facility, Odessa, Texas.

Project Role: Sr. PM/Hydrogeologist. Prepared Groundwater Monitoring Reports to define the extent of site COCs in groundwater, and to evaluate natural attenuation parameters and plume stability. Designed and installed groundwater monitor wells for lateral delineation of groundwater plume sourced from historic on-site activities and to identify an off-site potential source for a 1,4-dioxane groundwater plume that has co-mingled with the on-site sourced plume.

Produced Water Spill Sites, Delaware Basin New Mexico.

Project Role: PM. Performed Site Assessment/ Characterization on soils and groundwater to assess the release and determined if soil chloride concentrations exceeded the closure criteria limits for soil impacted by a produced water release. Prepared site assessment reports to document closure activities and sampling results.

Viejo Momentum, Lyda Mae Johnson TB Site, Odessa, Texas.

Project Role: Project Hydrogeologist, Designed an LNAPL recovery system consisting of a horizontal LNAPL recovery well with vertical clean outs and a hydraulic flow barrier located on the downgradient side of the recovery well to prevent LNAPL and groundwater with dissolved phase TPH from flowing past the recovery system.

Weatherford, Longview, Texas.

Project Role: PM. Contacted TCEQ, discussed site corrective actions, and an appropriate path forward for site closure. Prepared a Field Sampling Plan to define the extent of COCs (TPH and metals) to the appropriate residential PCL. SPLP analysis on the highest lead and arsenic soil samples were used to delineate to the residential PCL, and SPLP leachate analytical results that did not exceed the groundwater ingestion values were used for delineation when only the soil to groundwater ingestion pathway action level was exceeded. Based on this data, an estimate of the necessary level of effort and volume of affected soil requiring excavation and off-site disposal to demonstrate that no further action is necessary was determined and an APAR prepared. After TCEQ approval of the APAR, a RAP was prepared and 588 cubic yards of impacted soil was excavated, manifested, transported to a landfill for disposal, and the excavation backfilled and repaved. A RACR recommending no further action was then prepared and submitted to TCEQ.

Elementis Groundwater Monitoring, Kinder Morgan, Elementis Refinery, Corpus Christ, Texas.

Project Role: Sr.Hydrogeologist. Prepared Groundwater Monitoring Reports as required by an Agreed Final Judgment. Performed vertical groundwater flow profiling with groundwater flow velocity instrumentation deployed in groundwater wells. Vertical flow profiling was used to determine proportion of groundwater discharge from discrete zones to groundwater extraction wells located adjacent to a flow barrier. Performed LNAPL baildown recovery tests and performed analysis to determine hydrocarbon transmissivity and recoverability. Mapped extent of benzene and LNAPL groundwater plume. Designed LNAPL recovery wells, SVE and MPE extraction well systems for groundwater treatment. Assisted with designing groundwater and vapor phase treatment system for oil water separation, air stripping, and thermal destruction of hazardous pollutants. Oversaw operation and maintenance activities of SVE and MPE well systems for optimal performance.

2-Million Barrel Brine Pond Assessment, Phillips 66, Borger Texas.

Project Role: Site Manager/Sr. Hydrogeologist, Developed and implemented groundwater assessment to determine extent of impacts on local groundwater from a Texas Railroad Commission (RRC) permitted brine pond that previously stored brine used to displace hydrocarbons from underground storage facility. Used geochemical water quality data to estimate lateral extent of brine pond impacted groundwater and to design a semi-annual groundwater monitoring plan.

Brine Service Company Superfund Site, Corpus Christi, Texas. 2018.

Project Role: Project Hydrogeologist, Performed oversight of hollow stem auger drilling and identified the characteristic sludge and NAPL waste encountered from the drill cuttings, and collected bulk waste samples for bench scale treatability study.

Alaska Pipeline Project, ExxonMobil, Alaska, 2011.

Project Role: Field Manager Performed daily field management of two archeological field survey teams, and included responsibility for each crews safety, schedule, tracking of daily progress, and daily reporting of each crews progress, well-being, and wildlife and or native population interactions. Each team consisted of five archeologist, one GIS specialist, and one wildlife specialist.

BP Wood Station Remedial Investigation, Atlantic Richfield Company, Gaines County, Texas, 2009 to 2010.

Project Role: Project Hydrogeologist- Designed a light non-aqueous phase liquid (LNAPL) recoverability test for crude oil from a shallow aquifer at a pipe line pump station and crude oil storage terminal. Used LNAPL recoverability data to determine that only residual LNAPL remained but that observed LNAPL thickness would increase with the loss of capillary forces within the LNAPL and water filled soil pore spaces due to a site wide decline of aquifer water table elevations.

Market Sector – Groundwater Resources Confidential Client, Trinity Aquifer Groundwater Availability, Dripping Springs, Hays Couty, Texas, 2023.

Project Role: Project Manager and Sr. Hydrogeologist - Performed constant rate 24-hour aquifer pump test and recovery test and analysis to determine hydraulic parameters of the Lower Trinity Aquifer. Then modeled the future drawdown at the site and at a hypothetical well located 1,000 feet from the site pumping well after 10 years and 30 years of pumping at various constant pumping rates. Prepared an Aquifer Test report describing the testing and hydraulic analysis performed and an estimate of sustainable yield based on the predicted drawdown.

Market Sector – Government (Federal) Former Kelly AFB, TX Compliance Site Investigation and Closure for Multiple Sites, AFCEC, 2012 to 2015.

Project Role: Sr. Hydrogeologist and Site Task Lead- Performed visual site inspections and prepared work plans to investigate potential contamination in soil at multiple sites at firmer Kelly AFB. Oversaw, soil sampling with HSA and DPT drilling rigs and investigated an extensive subsurface heating vent system with a deployable remote video camera to identify cracked and degraded sections of the vent line that may have provided a conduit for contaminant transport. Performed reviews of lithologic soil boring logs and prepared site closure reports.

Longhorn Army Ammunition Plant (LHAAP) PBR, Karnack, TX, USACE Tulsa District, 2016-2017.

Project Role: Project Hydrogeologist, Performed quarterly review of LHAAP Site 18/24 groundwater recovery and interpreted the influence on the groundwater flow system and recovery rates caused by pumping from recovery trenches constructed with and without impermeable side walls, and with variable precipitation/artificial recharge rates. Mr. Pasternak has also designed an aquifer pumping test at LHAAP Site 17 specifically to determine the expected yield of the Shallow groundwater zone as a key design feature of a future groundwater recovery system at the Site.

Texas 6-Base Performance Based Remediation Project, Los Alamos Technical Associate , Air Force Plant 4, TX; Dyess AFB, TX; Laughlin AFB, TX, 2013 to 2016.

Project Role: Sr. Hydrogeologist – Performed design and installation oversight of remediation recovery wells for DNAPL recovery from fractured bedrock. Performed oversight of groundwater monitoring well installation and prepared a TCEQ Class V Injection Well I Inventory/Authorization Form for an injection pilot test of potassium permanganate to reduce TCE groundwater concentrations at Air Force Plant 4. Designed and implemented a groundwater re-classification plan to evaluate the current groundwater classification at a bulk fuel storage site at

Laughlin AFB. This groundwater classification plan included identification of existing high yield wells at the site and perimeter wells with low yields for potential demonstration of limited hydrogeologic extent of the groundwater resource.

Liquid Fuels Storage Area – ST012 Containment Study, AFCEC, Former Williams AFB, Arizona, 2011 to 2012.

Project Role: Project Hydrogeologist/Task Manager – Designed groundwater treatment capture zone analysis and implemented groundwater capture plane. Analyzed resultant drawdowns to determine actual groundwater capture zone and prepared quarterly reports documenting contaminant plume area within the groundwater capture zone.

Designed, implemented and performed interpretation of step-drawdown and 24 hour constant rate pumping tests to determine aquifer parameters.

Former Pantex Ordnance Plant (FPOP) Remedial Investigation, Amarillo, Texas, 2007 to 2012.

Project Role: Project Manager, Address regulatory comments on the Remedial Investigation conducted at FPOP.

Prepare and present detailed presentations to USACE and TCEQ on RI findings and recommendations. Conducted an extensive soil and groundwater investigation at the site, work included soil boring installations, soil and groundwater sampling, and hydrologeologic assessment.

Off-Base Source Investigation at Former Kelly AFB, San Antonio, TX, 2008-2011, (AFCEE).

Project Role: Project Hydrogeologist, The primary objective was to identify potential sources of chlorinated VOC contamination in shallow groundwater in Zones 4 and 5 at Former Kelly AFB from off-base private properties.

Prepared project plans for the installation of shallow groundwater monitor wells, four rounds of groundwater sampling and analysis for VOCs, development of a conceptual site model, and preparation of a report of findings.

Defense Environmental Restoration Account (DERA) Clean Up, US Army Corps of Engineers, Texas and Oklahoma, 2008 to 2009.

Project Role: Site Leader, Provided services to identify compliance cleanup sites at Altus, Lackland, Randolph, and Sheppard Air Force (AF) installations that are eligible for DERA funding. Project has involved performing records searches, site reconnaissance, and personnel interviews at each AF installation; completing final Site Visit Letter Reports and Technical Memos, with sampling recommendations.

Site Investigation of 19 AOCs, US Army Corps of Engineers, Lackland AFB, San Antonio, Texas, 2007 to 2010.

Project Role: Site Investigation (SI) Task Manager, Prepared a work plan to determine the nature and extent of contaminates in soil and groundwater at multiple sites at Lackland AFB. Oversaw all aspects of affected property and site inspection field work which included; geophysical surveys, exploratory trenching, soil gas sampling, soil sampling, installation of groundwater monitoring wells, aquifer pumping tests, and groundwater sampling. Prepared site investigations and affected property reports for multiple sites and determined the extent of protective concentration level exceedance zones at affected properties. Developed a conceptual site model for the groundwater flow system at a site impacted by TCE, and determined the TCE source. Provided oversight of field geologist performing all aspects of the site investigation and affected property field work. Prepared daily reports for the project manager, U.S. Corps of Engineers, and the Lackland Air Force Base Air Restoration Section briefing them on the day’s activities, progress made, and anticipated next day's work. Coordinated schedules of all field work performed by multiple subcontractors and on site field geologist and engineers.

Lackland AFB Groundwater Investigation and Site Investigations, US Army Corps of Engineers, Lackland AFB San Antonio, Texas, 2006 to 2010.

Project Role: Site Manager, Supervised all aspects of field work for affected property assessments, radiological remediation investigations, basewide groundwater investigation, Basewide groundwater APAR, and site investigations. This has included oversight and management of several field tasks including; well installations, groundwater sampling, soil sampling, soil gas sampling, aquifer testing, stream gauging, synoptic water level surveys, utility clearance for intrusive investigations, and surveying of monitoring wells coordinates.

Lackland Basewide Groundwater Investigation, US Army Corps of Engineers, Lackland AFB, San Antonio, Texas, 2006 to 2007.

Project Role: Task Manager, Reviewed and interpreted hydrogeologic data including, aquifer pump and slug test, surface water discharge, groundwater flow, and geologic data to construct a validated comprehensive basewide hydrogeologic conceptual site model (HCSM). The HCSM is being used to support Class 3 groundwater classification status that will ultimately be used to determine the appropriate groundwater decision criteria to use for any necessary groundwater remediation.

Building 700 Site Closure, AFCEE, Chanute AFB, Rantoul, IL, 2004 to 2007.

Project Role: Project Manager, Managed the Non-CERCLA investigation at the base motor vehicle refueling station (Building 700). Developed the work plans for the soil and groundwater investigation at the site and supervised all phases of the investigation. Prepared a Corrective Action Plan and a Corrective Action Completion Report for the Building 700 site.

Hydrogeologic Conceptual Site Model (HCSM) of Chanute AFB, AFCEE, Chanute AFB, Rantoul, IL, 2002 to 2004.

Project Role: Project Geologist/Task Leader, Developed a hydrogeologic conceptual site model (HCSM) of the Chanute AFB. This included the interpretation of geologic, hydrologic, and geochemical data for site characterization, aquifer designation, and conceptual model development. The HCSM used major ion chemistry and isotope geochemistry to identify distinct and mixed groundwater zones.

Operable Unit 1 RI/FS, AFCEE, Chanute AFB, Rantoul, IL, 2002 to 2006.

Project Role: Project Geologist/Task Leader, Worked on the development of a Remedial Investigation (RI) Work Plan for Chanute AFB Operable Unit 1. Collected soil samples using direct-push technologies. Installed and sampled groundwater monitoring wells. Conducted sustainable yield well tests. Evaluated soil and groundwater analytical data, and served as the lead author of RI and Preliminary Assessment/Site Investigation (PA/SI) Reports.

Landfill Study, AFCEE, Chanute AFB, Rantoul, IL, 2004.

Project Role: Task Leader, Developed an analytical groundwater flow model to predict groundwater and landfill leachate water level response to pumping of a leachate collection system at three landfills.

Basewide Groundwater CSM, US Navy PacDiv, Naval Air Weapons Station China Lake, CA, 1999 to 2002.

Project Role: Task Leader/Field Geologist, Developed a hydrogeological conceptual site model of the Naval Facility.

Designed and implemented hydrologic and isotope geochemical studies to determine groundwater gradients, aquifer recharge and contaminant transport at the facility. Used NETPATH to model the geochemical groundwater systems and groundwater flow travel times using 14C ages. Installed, developed, and sampled groundwater monitor wells.

PCE Pilot Study, EPA, Ogallala, Nebraska, 2001 to 2002.

Project Role: Task Leader/Field Geologist, Led field efforts for an in-situ chemical oxidation treatability study and source removal of a large PCE plume that was sourced by a dry cleaning facility. The treatability study involved the injection of sodium permanganate into a shallow sandy aquifer that had been impacted by PCE. Field operations included preparing the site for the treatability study, installing temporary groundwater monitoring wells, pre and post treatability study groundwater sampling, development of boring logs with lithologic descriptions of the aquifer matrix, and injection of the sodium permanganate. Groundwater flow direction was determined to optimize the effectiveness of the injection point locations. Performed daily consultation with the project engineer and project manager concerning the technical aspects of the treatability study, and post injection sampling frequency in order to best evaluate the effectiveness of the sodium permanganate to degrade the PCE. Discussed the effectiveness of the chemical oxidation with the project engineer based on the real time observations of oxidation reduction potential of groundwater from the temporary monitoring wells and developed an optimized schedule for post treatment sampling frequency. Provided oversight of other geologist and engineers performing the post injection groundwater sampling. October 2001 to December 2002.

Rocky Mountain Arsenal Hexachloroyclopentadiene (Hex) Pit Remediation, EPA, Denver, CO, 2001.

Project Role: Field Geologist, Collected pre-treatment soil samples used to evaluate the effectiveness of an in-situ thermal ionization remediation of hexachloroyclopentadiene.

Market Sector - Government (State and Local) PFAS Hydrogeologic Conceptual Site Model, Arizona Department of Environmental Quality, Payson and Star Valley, Arizona. 2024.

Project Role: Project Hydrogeologist and Technical Lead – Developed an initial conceptual site model (CSM) of the occurrence of PFAS, including PFOA, PFOS, PFNA, PFHxS, PFBS, and HFPO-DA in groundwater within the communities of Payson and Star Valley, AZ. Existing resources and data were leveraged to develop the initial CSM and included the compiling of the regional geology and groundwater flow system, local hydrogeology, influence of injected water from ASR wells, PFAS occurrence and data interpretation into the CSM, Based on the initial CSM data gaps were identified and recommendations were for updating and refining the CSM were made.

Remedial Investigation and Treatability Study, Texas Commission on Environmental Quality, Process Instrumentation and Electrical State Superfund Site, Odessa, Texas.

Project Role: Project Hydrogeologist – Designed and performed an aquifer test to characterize site hydrogeological conditions to support completion of a remedial investigation (RI) for the site. Activities included installation of a specially designed pumping test well, step-drawdown test to determine optimum pumping rate, constant-rate pumping and recovery test, and test analysis. Aquifer test analysis results were then used for the design of a pilot-scale treatability study to demonstrate to the extent possible, what volume of groundwater impacted with high levels of Cr(VI) can be extracted, treated on-site to remove dissolved chromium, and then reinjected into the aquifer safely and reliably. Based on the RI aquifer test results, designed and performed a pilot test treatability study that included installation of recovery and injection wells specifically designed for the treatability study, and the extraction of approximately 160,000 gallons of Cr(VI) impacted groundwater, on site treatment to remove Cr(VI) with an anionic exchange (IX) resin vessel system, and reinjection of the treated groundwater.

Colorado River Corridor Plan Environmental Monitoring, Travis County, Travis County Texas, 2011 to 2018.

Project Role: Project Manager – Designed a groundwater, air and noise environmental monitoring program to measure baseline environmental conditions to determine site conditions prior to onsite of active mining at a proposed sand and gravel mine site located in an environmentally sensitive area. Implemented and managed all aspects of this project including; reporting, data collection, presenting at public meetings, negotiating land access, negotiating contract modifications for client directed scope increases, regular communication with client and stake holders.

Remedial Investigation/Feasibility Study/Treatability Evaluations, Texas Commission on Environmental Quality, Marshall Wood Preserving State Superfund Site, Marshall, TX, 2008-2012.

Project Role: Project Geoscientist- Responsible for technical design field oversight and data interpretation of a multi-well aquifer test for a Class I groundwater bearing unit, and LNAPL baildown testing. Reviewed soil and groundwater data for identification of pentachlorophenol (PCP) source area.

Mabel Davis Park Groundwater Seep Investigation, City of Austin, Austin Texas, 2007 to 2008.

Project Role: Project Hydrogeologist, Designed and implemented an investigation of a groundwater seep that was eroding a land fill cap. Investigation included well design, installations, calculations of groundwater discharge, and design of a groundwater interception trench to prevent landfill cap erosion.

Market Sector – Commercial/Industrial Safety-Kleen Systems, Inc., Closure of RCRA-Permitted Hazardous Waste Management Units (WMUs), Corpus Christi, Texas.

Project Role: Sr. PM. Managed the groundwater and soil sampling program for delineation of a PCL exceedance zone at the affected property. Prepared an APAR in the TRRP program and identified offsite sources for groundwater contamination through a TCEQ records search that resolved the presence of hydrocarbons in groundwater that were unrelated to the onsite historical operations.. Prepared Self Implementation Notice to address on-site VOC soil contamination with a SVE remediation system

Confidential Client, Evaluation of Modeled Infiltration from Retention Ponds to Effect an Air Sparge/Soil Vapor Extraction Remediation System, Tooele Utah, 2019.

Project Role: Project Manager and Sr. Hydrogeologist. Performed an evaluation of the potential effect of infiltration from three stormwater retention ponds on a nearby air sparge (AS) soil vapor extraction (SVE) soil remediation system using HYDRUS-1D to model infiltration from each pond during a 100 yr 24 hr and a 1000 yr 24 hr precipitation event and for 1 yr after each event. Infiltration at each pond was adjusted to include run off from the surrounding impervious drainage, and the “Sand” hydraulic parameters from the HYDRUS-1D soil catalog were selected for the unsaturated soil hydraulic properties. Annual precipitation and evaporation rates were applied to the 1 yr long time step following each 24 hr point precipitation event. HYDRUS-1D only provides model results within a single soil column. To address lateral extent of infiltration from the ponds, separate model runs for soil columns orientated at 22.5o, 45o, 60o, 65o, 75o, 85o, and 90o from vertical were performed in addition to a vertical soil column orientation. Model results for each pond after a 100 yr 24 hr and a 1000 yr 24 hr precipitation event indicated that infiltration from the ponds would not reach groundwater at 106 meters, that pond infiltration would not influence operation of the AS/SVE remediation system or encroach upon its zone of influence. Based on the model results, State regulators approved the construction plans for the retention ponds.

E-Z Mart Stores, Inc., #557 Remediation System, Mount Pleasant, Texas.

Project Role: Sr. Hydrogeologist. Support ongoing operations and maintenance activities, data analyses and reporting, and remediation system performance monitoring and reporting for operation of a dual-phase extraction/Bioslurping remediation systems for the extraction of gasoline LNAPL from active LPST gasoline stations, which are regulated under the Texas Petroleum Storage Tank (PST) Remediation Program.

Coal Combustion Residual (CCR) Groundwater Monitoring, Equalization Pond, Ash Pond, and Ash Pile at the San Miguel Electric Plant, Christine, TX, 2017-2018.

Project Role: Sr. Hydrogeologist, Managed the detection groundwater monitoring program per CCR Rule (40 CFR 257.90) at three CCR units at the San Miguel Electric Plant. This included the oversight and management of all field activities, including groundwater sampling for the constituents listed in Appendix III (Detection Monitoring Constituents) and Appendix IV (Assessment Monitoring Constituents) of the CCR Rule, and visual inspection to document the overall condition, quality, and integrity of each monitor well. Prepared the CCR Annual Groundwater Monitoring Report to document the requirements specified in 40 Code of Federal Regulations (CFR) §257.90(e) have been met to support the applicable regulatory provisions for the three existing CCR Units at the Plant. The CCR Annual Groundwater Monitoring Report included a description of each CCR Unit, the groundwater monitoring system at each Unit, well inspections, groundwater potentiometric surface maps, and analytical data for the detection monitoring and assessment monitoring constituents for each sampling event performed for the detection monitoring program.

Celanese Ltd. Corpus Christi Technical Center Corpus Christi, Texas, 2015 to 2016.

Project Role: Project Hydrogeologist - Prepared a TCEQ Class V Injection Well Inventory/Authorization Form for injection of Provect-OX to reduce the concentrations of chlorobenzene in groundwater at an identified hotspot.

Performed slug tests and performed hydraulic analyses of the slug test data to determine site specific hydraulic parameters of the contaminated groundwater zone, and performed a technical review of the Annual Groundwater Monitoring and Sampling Report for the site.

In-situ Arsenic Remediation in Groundwater, Legacy Site Services, Inc., Bryan, TX, 2007 – 2012.

Project Role: Hydrogeologist Performed field implantation for in-situ remediation of arsenic, pesticides, and semivolatile organic compounds in site groundwater. Also served as team hydrogeologist for construction of a combination ZVI/slurry wall to treat arsenic in groundwater and protect an adjacent surface water body.

PCE degradation Pilot Test, Phillips 66, Westlake Louisiana, 2010.

Project Role: Task Manager Performed daily technical and geologic oversight for an enhanced in-situ bioremediation study for PCE degradation using reductive dechlorination. The study included injection of an amendment consisting of a hydrogen-releasing compound for biostimulation combined with inoculation of the halorepiring culture for bioaugmentation. Managed the technical aspects of mixing and injecting at each injection point and performed oversight of two separate subcontractors performing drilling, and mixing/injection of the amendment to the subsurface.

Fayette Power Project Ash Pond Closure, Lower Colorado River Authority (LCRA), Fayette County, Texas, 2010 to 2012.

Project Role: Project Hydrogeologist Performed background research and literature review of the ash pond and groundwater hydraulic system. Prepared technical memorandum describing the groundwater and ash pond hydraulic system and potential groundwater interaction with the ash pond during post closure conditions.

Snake River Drainage Basin Creek Flow, Arapaho Basin, Summit County, CO., 2001.

Project Role: Field Geologist, Sampled and evaluated surface water quality and flow rates from the Snake River to identify locations along the river were acid rock drainage from abandoned mine tailings was degrading surface water quality.

Pit Lake Study and Model, Getchell Gold Corporation, Winnwmucca, Nevada, 1996 to 1999.

Project Role: Research Assistant Determined hydrologic characteristics of the Getchell mine site for groundwater flow model parameters by performing aquifer tests and mapping historic and current water-table elevations.

Constructed conceptual and a MODFLOW groundwater flow model of the Getchell open pit mines to predict the rate groundwater would flow into the pit upon mine closure, and the quasi steady state pit lake water volume.

Publications

Presentations at conferences/symposiums K. Pasternak, and J. Gibbs, Molarity of a Chlorinated Groundwater Solution and CVOC Trends to Identify a cis-1,2-DCE Source. 2024 Battelle 13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds.

June 2-6, 2024, Denver, Colorado.

K. Pasternak, Platform Session Co-Chair, Process-Based Conceptual Site Models (CSMs) for informing Remediation.

2024 Battelle 13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds. June 2-6, 2024, Denver, Colorado.

K. Pasternak, and J. Coll, Evaluation of Modeled Infiltration from Retention Ponds to Affect an Air Sparge/Soil Vapor Extraction Remediation System. 2022 Battelle 12th International Conference on Remediation of Chlorinated and Recalcitrant Compounds. May 22-26, 2022, Palm Springs, California.

J.R. Woertz, Pasternak, K, and J.C. Wolfe, Remediating DNAPL from Fractured Bedrock to Prevent Off-Site Migration to a Neighboring Creek. 2016. Battelle Tenth International Conference on Remediation of Chlorinated and Recalcitrant Compounds. May 22-26, 2016 Palm Springs, California.

Smith, C,V. Pasternak, K, and Crysup, R.J, Groundwater Evaluation for Ash Ponds at a Coal Fired Power Plant in Texas. 2013 World of Coal Ash Conference, April, 2013.

Pasternak, Kevin; Young, Steve; Richmann, Debra; Davis, Dan; Nguyen, Kim: “Innovative Base-wide Approach to Groundwater Classification and Closure of the Shallow Groundwater-Bearing Unit (GWBU) at Lackland AFB, Texas Under the Texas Risk Reduction Program (TRRP). The Geological Society of America 43rd Annual Meeting, South- Central Section, 16-17 March 2009, University of Texas at Dallas. Dallas, Texas.

Pasternak, K. and L. Shevenell, “Observed and Modeled Pit Filling Rates at the Getchell Gold Mine. U.S. Environmental Protection Agency Workshop on the Characterization Modeling, Remediation, and Monitoring of Pit Lakes.” Reno, NV, April 4-6, 2000, p. 105.

Pasternak, K., and Shevenell, L., 1999, Evaluation of a numerical pit-lake filling model at the Getchell Mine, Nevada:

Modeled versus observed filling rates, Eos Transactions of the American Geophysical Union, v. 80, no. 17, p. S134.

Pasternak, K., Shevenell, L., Tempel, R., Bennett, J., Lechler, P., Price, J.G., and Barta, J., 1998, Comparison of modeled and observed rates of pit filling at the Getchell Mine: Nevada Water Resources Association annual meeting, Abstracts of Technical Papers and Posters, p. 27.

Invited Panelist Geoscience Employer’s Workshop on the Future of Undergraduate Geoscience Education May 27-28, 2015, Washington D.C. A National Science Foundation sponsored workshop.

Plenary Session, Panel Discussions on Careers in Geosciences: Modern Analogs for Today’s Students. The Geological Society of America 47th Annual Meeting, South-Central Section, April 4-5, 2013, The University of Texas at Austin.

Austin, TX.

Work Chronology Atlas Technical Consultants - 3/2019 to Present AECOM/URS Corporation - 5/2002 to 3/2019 Tetra Tech - 5/1999 to 5/2002 Nevada Bureau of Mines and Geology - 8/1996 to 5/1999 Law Engineering and Environmental Services - 9/1995 to 5/1996