who we are
Our History
Celebrating over 50 years of excellence, KEMRON Environmental Services, Inc. is a 100% employee-owned small business dedicated to advancing our employees while providing top-tier environmental solutions. We serve federal, state, and local governments, as well as private industries like manufacturing, utilities, and transportation. Our services include environmental assessment, investigation and engineering, site remediation, professional consulting, munitions response, and emergency response, ensuring comprehensive environmental management.
KEMRON integrates detailed investigations and advanced engineering to design effective remediation strategies. Our commitment to environmental stewardship helps us minimize liabilities and reduce costs for our clients. Our expert team handles regulatory compliance and emergency spill response with efficiency and expertise.
With five decades of experience, KEMRON leads the environmental industry, adapting to meet our clients’ evolving needs. Our dedication to quality, safety, and sustainability ensures we deliver exceptional results, turning environmental challenges into opportunities for innovation and growth.
who we are
Our Leadership
At KEMRON, our leadership philosophy is rooted in providing high-quality solutions to complex environmental challenges. As a 100% employee-owned company, we prioritize quality and safety in every project ensuring efficient and cost-effective remedies that align with our clients’ goals and needs. We are dedicated to investing in our employees’ financial futures and fostering a culture of shared success and long-term stability. This commitment to excellence and shared ownership drives us to consistently deliver superior results.
EXECUTIVE TEAM
JOHN DWYER
President / CEO
D: 404.229.3807
jdwyer@kemron.com
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Mr. Dwyer joined KEMRON in 1980. He has served as president since 2017, steering the corporation to tremendous growth in the environmental market. Additionally, Mr. Dwyer has managed the transition of the corporation from a privately held corporation to a 100% Employee-Owned company.
JOHN ENGLAND
Chief Operating Officer
D: 303.517.2095
jengland@kemron.com
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John England has demonstrated exceptional leadership and strategic vision in the environmental remediation industry over the past 35 years and has a proven track record of developing project teams and fostering long-lasting client relationships. Managing offices and operations across multiple firms, John has overseen substantial personnel growth and developed branch offices in the Western United States. As a Program Manager, John has successfully managed over $750 million in environmental restoration projects ranging from site investigations to multi-year remediation efforts. With expertise in leading marketing and proposal efforts for federal, municipal, and commercial clients, he excels in team building and communication
LOU EHRHARD
PG, PMP, Vice President
D: 847.721.8000
lehrhard@kemron.com
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Lou Ehrhard has been with KEMRON for 20 years first starting as a Regional Manager for the Chicago office, a position he currently holds. Since then, he has moved into leadership roles as a Program Manager for several of our contracts with the Army Environmental Command, US Army Corps of Engineers, and Navy. Lou is currently a Vice President on our Executive Team and also leads KEMRON’s Quality Department.
MARY LOU ROCHOTTE
CPG, PMP, CQM,
Vice President
D: 740.236.3961
mrochotte@kemron.com
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Mary Lou is experienced in KEMRON’s private and government client project work, conducting investigative projects under CERCLA and RCRA Corrective Action from initial investigation through closeout. She also provides compliance support, including permitting, compliance evaluation and reporting. She is highly skilled at applying her regulatory knowledge and experience, successfully implementing sampling and analysis programs to evaluate and resolve environmental concerns with multiple media including soil, groundwater, soil vapor, indoor air, sediment and surface water. In her 26th year with KEMRON, Mary Lou’s experience and leadership provide value to her clients and our company, and will be an asset to your projects.
MELANIE BROWN
Chief Financial Officer
D: 404.601.6910
mbrown@kemron.com
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Melanie is an operationally focused and strategically minded CFO with over 25 year’ experience in accounting and finance. She thrives in dynamic and transforming environments where leadership is needed to build solid platforms for growth. Melanie has architected accounting system implementations using Microsoft Dynamics SL and work with DCAA (Defense Contract Audit Agency) for compliance regulations required for government contractors. The company converted from a C-Corp to an S-Corp in 2016 doing an ESOP conversion from 20% ownership to 100% ownership.
As CFO of KEMRON, she is also the company’s financial steward and strategic partner to the President and CEO. Melanie also serve as the Secretary/Treasurer on the Board of Directors. She works closely with our bank regarding financing and lending and covenant requirements to position the company with a strong working capital.
She has a well-rounded executive finance and accounting leadership background that includes equity and debt transactions, finance and accounting management, management of multiple joint ventures and consolidated financial reporting. Finally, she oversees all audits conducted with various agencies as well as overseeing the company’s insurance renewals.
corporate directors
MICHELLE CHURCH
Director of Human Resources
D: 404.973-6753
michelle.church@kemron.com
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Michelle holds a Bachelor’s degree in Management of Human Resources and has 25 years of Human Resources leadership. She has a deep and proven track record of leading initiatives across talent acquisition, development, succession planning, and change management, while always aligning workforce capabilities with KEMRON’s strategic goals. Michelle has a commitment to employee engagement, learning and development and strong expertise in building scalable HR processes and policies.
ROBERT JOHNSON
JD,MBA
Director of Contracts & Procurement.
D: 404.973.6244
robert.johnson@kemron.com
Robert has more than 15 years of experience as a senior contracts manager, leading innovative acquisition programs for GSA, the Kansas Army National Guard Bureau, and the USACE Kansas City District. He has a Juris Doctorate from the University of Kansas, a Master of Business Administration from Baker University, and has completed the Defense Acquisition University Level III in Contracting and Level I in Project Management, and his FAC-C Professional and Contracting Officer Representative (COR) Level I.
DAVE ROBB
Chief Information Officer
D: 404.601.6909
drobb@kemron.com
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Dave joined KEMRON after spending 15 years in public accounting, and another 15 years implementing and developing for mid-range accounting systems. He presently serves a dual role as IT and Financial Applications Manager.
LUKE VON OLDENBURG
CIH, CSP, SHMM, CIEC, Corporate Safety Director
D: 404.229.3807
luke.vonoldenburg@kemron.com
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Luke von Oldenburg is the Corporate Safety Director for KEMRON Environmental Services. He is a Certified Safety Professional, Certified Industrial Hygienist, Certified Hazardous Material Manager, Certified Indoor Environmental Consultant, and an authorized OSHA instructor. He has over 20 years in environmental industry, with field experience under the US EPA START team and ERRS team; he also has experience on USACE, and DOD sites, as well as private sectors and railway.
SHANNON HYLAND
Marketing & Proposal Director
D: 404.601.6904
shyland@kemron.com
Shannon Hyland has been employed with KEMRON in its Proposal and Marketing Department for 30 years. She holds a Bachelor’s degree in Journalism from Georgia State, which she applies to her daily duties as the Proposal and Marketing Director. Over her career with KEMRON, she has contributed to the company’s growth through multiple large contract wins. These include Multiple Award Task Order Contracts with federal government agencies such as the Army, USACE, EPA, Navy, and Air Force; state agencies; and various private sector clients. She is committed to continuing her contribution to KEMRON’s growth in revenue and personnel through her efforts in marketing and proposal management.
regional managers and technical
TERRY L. WILFONG, JR.
Regional Manager –
West Virginia Operations
D: 304.741.0366
tlwilfong@kemron.com
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Terry began his environmental career at KEMRON in 1999 as a Staff Scientist and currently serves as Regional Manager at KEMRON’s Charleston, WV office. With experience in various regulatory programs and diverse clientele, he specializes in due diligence, UST/AST compliance and remediation, site investigation, remediation system design, in-situ remedial injections, and management of multi-project portfolios. As a seasoned Project/Program Manager, Terry has addressed environmental liabilities and provided regulatory guidance for numerous private and government clients.
DAVID PITZER
Regional Manager –
Ohio Operations
D: 740.629.5449
dpitzer@kemron.com
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Dave Pitzer serves as the Operations Manager for the Marietta Office, overseeing consulting operations, as well, with a focus on Federal and Private data management. Prior to serving as Operations Manager, he served as the GIS and Data Manager for all KEMRON. Dave has been with KEMRON for more than 18 years.
TOM THROWER
Construction Operations Manager
D: 404.601.6926
tthrower@kemron.com
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With over 20 years of experience in environmental and construction-related projects, Tom Thrower serves as KEMRON’s Operations Manager and Senior Estimator. His extensive expertise spans emergency response, water treatment, excavation, land development, and general construction practices.
At KEMRON, Tom’s responsibilities encompass operations management, project estimating, and equipment inventory tracking. His comprehensive background includes roles such as Project Supervisor, Project Manager, and Logistics Manager, as well as hands-on experience in equipment procurement, cost handling, cost estimating, and equipment operation. These diverse roles have honed his skills, enabling him to excel in estimating and managing operations efficiently and effectively.
MARILYN ZUMBRO
PMP, Program Manager
Member, Board of Directors
D: 740.350.0541
mzumbro@kemron.com
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With over 35 years of diverse environmental experience, Marilyn has lead teams in the development and implementation of all phases of environmental services. She is highly skilled in serving as the primary POC for complex environmental projects; communicating and coordinating with the customer to resolve stakeholders’ legal, regulatory, and policy concerns; and ensuring that site personnel complete all tasks in accordance with applicable contract, environmental requirements and policies. She has extensive experience in all phases of RCRA, TSCA, and CERCLA project work; site investigation and data analysis and interpretation; and emergency response and community preparedness. She provides comprehensive program management for site investigations and remediation; solid and hazardous waste compliance program development and audits under RCRA and state regulations. She has authored multiple sampling and analysis plans, developed QAPPs, and successfully negotiated investigation and cleanup methods and criteria for multiple chemicals of concern and media, including soil, groundwater, surface water, vapor/indoor air, and waste. Her experience includes working with federal and state regulatory agencies to achieve project goals, including USEPA Regions 2, 3, 4, 5, 6, 8 and 9 and multiple states. She provides expert witness support and serves as Program Manager for KEMRON federal ID/IQ contracts including DOD, EPA and USACE.
MELANIE ENMAN
PG, MMRP Program Manager
D: 415.595.0718
melanie.enman@kemron.com
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Melanie Enman, PG is KEMRON’s MMRP Program Manager and professional geologist with 23 years of professional experience in the environmental industry. She is skilled in division level personnel management, profit and loss evaluation, federal contract program management, business development and proposal management/development. Her environmental subject areas include CERCLA, MMRP removal/remedial actions, as well as CERCLA and non-CERCLA groundwater, soil, and soil vapor investigation, remediation, and removal actions.
ROBERT “ROBBY” TAYLOR
Chief Estimator
D: 706.476.3636
robert.taylor@kemron.com
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Robby Taylor is KEMRON’s Chief Estimator, bringing over 35 years of experience in federal and commercial environmental remediation, construction, and DOD fueling projects. His career began with 18 years in the field, where he advanced from heavy equipment operator to Site Superintendent. For the past 17 years, Robby has specialized in project estimating, applying his extensive hands-on knowledge to ensure accurate and competitive bids.
who we are
Quality
At KEMRON, our commitment to quality is unwavering. Guided by our Quality Management Plan (QMP), we deliver high-quality services that consistently meet or exceed customer expectations. Our mission is to continuously improve our quality program through accountability, innovation, process improvement, and value, ensuring we provide superior products and services.
Our quality management operations are led by the Corporate Quality Assurance Manager (QAM), who reports directly to the President. This role ensures unbiased oversight and consistent quality management across all projects. The QAM has the authority to develop QA/QC policies, review and approve Quality Assurance Project Plans and Quality Control Plans, conduct assessments, and implement corrective actions. Notably, the QAM can stop work on a project if significant deficiencies are found until corrective actions are in place. Additionally, many of our quality control staff are USACE Construction Quality Control certified, enhancing our capability to meet rigorous quality standards.
In the field, our Quality Control (QC) Officers play a crucial role in managing day-to-day operations. They oversee the implementation of project-specific quality plans and ensure compliance with established SOPs. We utilize the USACE three-phase quality control process to maintain our high standards. This process includes preparatory meetings to review project requirements, initial inspections to ensure work complies with standards, and follow-up inspections to verify that completed work meets all quality criteria. Our QC Officers conduct regular inspections, audits, and tests to verify that all activities meet the required quality standards. They are empowered to identify and address any quality issues immediately, ensuring that any deviations are promptly corrected. Their hands-on approach and attention to detail are vital in maintaining the high standards of service that KEMRON is known for.
All KEMRON employees are empowered to identify and address potential quality issues. We provide overarching quality control training, job specific SOPs, and on-the-job specific training relevant to their roles. We also maintain a comprehensive library of Standard Operating Procedures that govern our environmental information collection and management, which are reviewed and updated annually to incorporate the latest best practices and lessons learned.
Quality improvement is integral to our operations. We employ the Plan-Do-Check-Act (PDCA) model to ensure continuous assessment and enhancement of our processes. Regular audits, assessments, and feedback loops help us identify areas for improvement and implement necessary changes. We use robust data management systems to ensure the accuracy and reliability of environmental data, supported by an IT infrastructure protected by multilayer endpoint protection. All data undergo thorough verification and validation to meet project-specific quality objectives.
By prioritizing quality, KEMRON ensures a culture of continuous process improvement, the delivery of reliable and high-quality services, fostering trust and satisfaction among our clients.
who we are
Safety
At KEMRON, safety is paramount, and our goal is ZEROES – zero accidents, zero incidents. Our safety program ensures continuous training and refined safety protocols, and our employee-owners are well-versed in OSHA regulations and hold multiple safety certifications.
Our comprehensive safety program includes mandatory OSHA courses, HAZWOPER certification, first aid/CPR, and job-specific training. We enforce the use of appropriate Personal Protective Equipment (PPE) for all field activities and have a robust emergency response plan featuring regular drills and simulations. Each project has a detailed site-specific safety plan addressing unique risks and regulatory requirements.
Empowering employees is a critical aspect of our safety culture. Every employee is required and authorized to stop work if they identify unsafe conditions which ensures immediate hazard mitigation.
Regular internal and external audits ensure compliance with safety regulations and continuous improvement. Our proactive approach to incident prevention includes site inspections, hazard assessments, and near-miss reporting. Incidents and near-misses are thoroughly investigated with findings used to enhance safety protocols.
KEMRON’s exemplary safety record reflects our team’s commitment and vigilance. We believe safety is a shared responsibility and encourage employees to participate in safety meetings, report hazards, and suggest improvements. This collaborative approach ensures active engagement in maintaining a safe workplace.
Continuous improvement is central to our safety culture. Monthly Safety Stand Downs are conducted further emphasizing our commitment and undergirding our safety culture. We regularly review and update safety policies to incorporate the latest best practices and regulatory requirements in order to exceed industry safety standards.
By prioritizing safety, KEMRON ensures effective job performance while minimizing risks and protecting employee well-being fostering a safety culture throughout our operations.
Our safety program has been reviewed and certified by the following:
who we are
Sustainability
At KEMRON, sustainability in environmental cleanup and investigation is fundamental to our mission. We integrate practices that minimize environmental impact and promote long-term protection.
We employ green remediation practices such as in situ treatment, bioremediation, and phytoremediation which treat contamination on-site reducing the need for excavation and transportation and lowering our carbon footprint.
Our commitment extends to using sustainable materials and energy-efficient equipment. We prioritize recycled and environmentally friendly materials in our projects and ensure our equipment consumes less energy and emits fewer pollutants. Waste minimization and recycling are also key aspects of our approach. By implementing source reduction practices and recycling materials like metals and concrete, we significantly reduce waste generation.
Water conservation and management are critical to our operations. We design stormwater management systems to prevent erosion and contamination and recycle treated water in our cleanup processes. Additionally, we focus on sustainable land use and habitat restoration. We restore native vegetation and habitats to support biodiversity and repurpose brownfield sites for new and sustainable uses.
Monitoring and adaptive management are integral to our strategy. We use advanced monitoring technologies to track contamination levels and the effectiveness of our cleanup efforts and continuously adjust our methods based on real-time data and environmental changes.
Compliance with environmental regulations underscores our commitment to high environmental performance. We conduct life cycle assessments to evaluate the environmental impacts of our cleanup activities from start to finish identifying and minimizing adverse effects throughout the project lifecycle.
Implementing these sustainable practices enhances the environmental, social and economic outcomes of our cleanup and investigation efforts ensuring a healthier planet for future generations.
CAREERS AT KEMRON
Join Our Team
Regional Office Locations
KEMRON operates nationwide, with central regional offices and multiple project and support offices strategically located across the country.
Atlanta, GA
1359-A Ellsworth Industrial Boulevard
Atlanta, GA 30318
Voice 404.636.0928
Fax 404.636.7162
Dan Childress: dan.childress@kemron.com
Charleston, WV
108 Craddock Way, Suite 5
Poca, WV 25159-7606
Voice 304.755.0999
Fax 304.755.0990
Terry L Wilfong: tlwilfong@kemron.com
Chicago, IL
3155 Blackhawk Dr, Building 599
Fort Sheridan, IL 60037-1289
Voice 847.266.1350
Fax 847.266.3584
Lou Ehrhard: lehrhard@kemron.com
Marietta, OH
2343-A State Route 821
Marietta, Ohio 45750
Voice 740.373.4308
Fax 740.376.2536
Dave Pitzer: dpitzer@kemron.com
Vienna, VA
8521 Leesburg Pike, Suite 175
Vienna, VA 22182
Voice 703.893.4106
Fax 703.893.1741
Danie Penenburgh: dpenenburgh@kemron.com




