Environmental compliance, remediation, assessments

Marynette Herndon, M.S., CHMM, REM

Environmental Program Manager Senior Environmental Engineer Environmental Compliance Leader

Idaho Falls, ID

912-***-**** *********@**********.***

ENVIRONMENTAL LEADERSHIP HIGHLIGHTS

• Environmental program leader with 20+ years of experience managing environmental compliance, remediation, and radiological monitoring programs for DOE facilities, commercial nuclear power plants, and federal environmental projects.

• Extensive expertise implementing environmental regulatory programs under RCRA, CERCLA, CAA, and CWA, including permitting, compliance monitoring, regulatory audits, and environmental program oversight.

• Proven leadership supporting major federal environmental operations, including Idaho National Laboratory, Savannah River Site, Strategic Petroleum Reserve, and Hanford Reservation.

• Directed environmental remediation and monitoring programs addressing radiological contaminants, PCBs, PAHs, dioxins, heavy metals, and hazardous waste during nuclear facility cleanup and decommissioning projects.

• Liaison with DOE, NRC, EPA, and state regulatory agencies, ensuring compliance, resolving regulatory issues, and advancing complex environmental initiatives.

• Experienced in contractor oversight, environmental assessments, regulatory reporting, and multidisciplinary team leadership for large federal infrastructure and remediation programs.

MAJOR CAREER ACHIEVEMENTS

• $1.8M Remediation Cost Reduction – Implemented thermal desorption technology to treat PCB-contaminated soils during Yankee Rowe Nuclear Station decommissioning, reducing remediation costs by $1.8 million while accelerating cleanup schedules.

• DOE Environmental Program Leadership – Directed environmental compliance and regulatory oversight supporting major DOE programs including Idaho National Laboratory, Savannah River Site, and the Strategic Petroleum Reserve.

• Nuclear Facility Decommissioning Leadership – Managed environmental operations and health physics programs for a 12-acre nuclear power plant decommissioning project, overseeing radiological monitoring, contaminant characterization, and hazardous waste management.

• Multi-Site Hazardous Waste Compliance Program – Led the corporate RCRA hazardous waste management program for five Strategic Petroleum Reserve facilities, and a ship terminal, ensuring regulatory compliance across multi-state DOE operations.

• Federal Environmental Permitting and Regulatory Coordination – Successfully coordinated with DOE, NRC, EPA, and state regulators to support environmental permitting, remediation approvals, and compliance resolution for complex federal environmental programs.

• Emergency Preparedness and Regulatory Planning – Member of the technical team that developed the National Enrichment Facility Emergency Plan supporting NRC licensing requirements under 10 CFR 76.

PROFESSIONAL SUMMARY

Environmental Program Manager and Senior Environmental Engineer with extensive experience leading environmental compliance, remediation, and environmental monitoring programs for federal agencies, national laboratories, and nuclear facilities. Demonstrated expertise in environmental permitting, regulatory compliance strategy, and environmental program management under RCRA, CERCLA, CAA, and CWA regulatory frameworks.

Proven ability to manage multidisciplinary teams, oversee environmental assessments and remediation initiatives, and coordinate with regulatory agencies to ensure compliance across complex environmental operations. Recognized for delivering high-quality regulatory documentation, managing environmental risk, and implementing environmental programs supporting DOE mission objectives and federal regulatory requirements.

CORE COMPETENCIES

Environmental Compliance & Regulatory Programs

• RCRA, CERCLA, CAA, CWA Compliance

• Environmental Permitting & Regulatory Strategy

• Environmental Audits & Compliance Monitoring

• Federal & State Regulatory Coordination

• Environmental Monitoring Programs

Environmental Engineering & Remediation

• Soil & Groundwater Remediation

• Hazardous, Radioactive, and Mixed Waste Management

• Radiological Environmental Monitoring

• Environmental Site Assessments

• Environmental Data Analysis

Program & Project Leadership

• Environmental Program Management

• Contractor Oversight & Compliance Monitoring

• Multidisciplinary Team Leadership

• Emergency Preparedness & Environmental Training

• Corrective Action Planning

Technical & Analytical Tools

• Regulatory Reporting & Technical Documentation

• Environmental Program Assessments

• Microsoft Office Suite

• Environmental Data Systems

• GIS / Environmental Modeling (familiarity)

RELEVANT PROFESSIONAL EXPERIENCE

Herndon & Associates, Inc., Idaho Falls, ID

President and Senior Consultant Oct 2023 – Present

• Provide technical evaluation services supporting state radiological laboratories and emergency operations facilities.

• Conduct independent assessments of environmental monitoring, dose assessment capabilities, and regulatory compliance programs for multi-state emergency preparedness organizations.

• Support environmental regulatory program evaluations and technical reviews related to radiological monitoring and environmental protection programs.

Jacobs — Idaho Falls, ID

Environmental Programs Manager May 2020 – Sept 2023

• Directed environmental compliance oversight for subcontractors supporting the construction of the Naval Spent Fuel Handling Recapitalization Project at Idaho National Laboratory.

• Ensured compliance with RCRA waste regulations, air permitting requirements, chemical management standards, and spill response programs for DOE construction activities.

• Led regulatory transition and technical review of seven RCRA permits and NRC regulatory permits during the Jacobs / Fluor contract transition.

• Provided environmental regulatory guidance to project leadership and contractors supporting major DOE infrastructure and nuclear facility modernization programs.

North Wind, Inc., Idaho National Laboratory

Project Engineer June 2016 – Mar 2019

• Ensured compliance with RCRA and CERCLA regulatory requirements supporting environmental operations for the Idaho Cleanup Project (ICP) at the Idaho National Laboratory.

• Led readiness reviews for the startup of Accelerated Retrieval Projects (ARP VIII and ARP IX), supporting radioactive waste retrieval operations.

• Conducted environmental program assessments and developed corrective action plans to ensure regulatory compliance and operational readiness.

• Participated in emergency preparedness planning, environmental monitoring program oversight, and emergency response training exercises.

Herndon & Associates, Inc., Brunswick, GA / Idaho Falls, ID

President and Senior Consultant 2000 – 2016

Yankee Rowe Nuclear Power Station Decommissioning

• As the Environmental Operations Manager, directed Environmental Operations and Health Physics programs during decommissioning of the Yankee Rowe commercial nuclear generating station.

• Managed environmental monitoring, contaminant characterization, and remediation activities for a 12-acre nuclear cleanup site involving radiological and hazardous contamination.

• Oversaw sampling and characterization of organic, inorganic, and radiological contaminants, including PCB, PAH, dioxin, and heavy metal contamination.

• Managed disposal and shipment of construction debris, radioactive waste, hazardous waste, and mixed waste streams.

• Reduced remediation costs by $1.8 million by implementing thermal desorption treatment for PCB-contaminated soils.

National Enrichment Facility Licensing

• Member of the technical team that developed the Emergency Plan for the National Enrichment Facility, supporting NRC licensing requirements under 10 CFR 76.

Point Beach Nuclear Plant Compliance Review

• Conducted 10 CFR 50.54(q) regulatory compliance audit of emergency preparedness programs.

• Identified regulatory non-compliance issues and developed corrective action recommendations for plant management.

DynMcDermott Petroleum Operations Company

Corporate Hazardous Waste Specialist — Strategic Petroleum Reserve

• Directed the corporate RCRA hazardous waste compliance program for five Strategic Petroleum Reserve sites and a ship terminal across Texas and Louisiana.

• Conducted 8–10 annual regulatory compliance audits of TSDF facilities and recyclers, approving disposal vendors for DOE waste management operations.

• Led soil and groundwater remediation programs addressing Non-Aqueous Phase Liquid contamination and bioremediation initiatives.

• Represented DOE during regulatory meetings with Texas and Louisiana environmental agencies regarding remediation and regulatory compliance issues.

Earlier Career Experience

Halliburton NUS — Savannah River Site

Principal Technical Consultant

• Conducted environmental compliance audits to ensure contractor compliance with DOE Orders, CERCLA, RCRA, EPCRA, OSHA, and federal environmental regulations.

Machine Kinetics — DOE Portsmouth Gaseous Diffusion Plant

Radiological Environmental Engineer

• Supported mixed waste storage facility closure project and evaluated waste segregation, permitting requirements, and regulatory compliance.

Allied Nuclear — Washington Public Power Supply System

Environmental Health Physicist

• Managed radiological environmental monitoring programs and prepared annual environmental monitoring reports supporting nuclear plant operations.

EDUCATION

Master of Science — Environmental Engineering

Southern Methodist University

Bachelor of Science — Biology

Georgia Southern University

Certified Health Physicist Preparation Program

Joint Center for Graduate Studies — Richland, WA

PROFESSIONAL CERTIFICATIONS

Certified Hazardous Materials Manager (CHMM)

Registered Environmental Manager (REM)

ISO 14001 Environmental Auditor — Registrar Accreditation Board (Inactive)

AWARDS & PROFESSIONAL RECOGNITION

Secretary of Energy National DOE Award — Radioactive / Hazardous Waste Recycling

Louisiana Governor’s Environmental Leadership Award

Superior Achievement Award — DynMcDermott Petroleum Operations

PUBLICATIONS

Author / Co-Author of 140+ technical and programmatic publications related to environmental compliance, radiation protection, and emergency preparedness.

PROFESSIONAL AFFILIATIONS

Certified Hazardous Materials Manager (CHMM) — Louisiana Chapter

Former Chapter Secretary and Technical Newsletter Publisher

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