EMS Staff

EMS' reputation is directly attributable to the high quality of its employees. Our staff embodies the values of excellence, integrity, and dedication. This kind of environment can only exist in a place where race, gender, and age do not define talent. We are individually committed to excellence, in performance, the quality of our products and services, timeliness, and ethical relationships with our clients and business partners.

Meet our staff (click on each name for a full biography):

Peter Riddle, President

EMS Staff PhotoPete advises EPA on information dissemination, collaboration, and outreach strategies. He then develops, deploys, and manages websites and online services to implement those strategies. Pete has managed the Contaminated Site Clean-Up Information (CLU-IN) website on behalf of EPA for the past 24 years. Pete also developed the platform for CLU-IN's ongoing webinar series, with more than 1,900 webinars conducted for over 340,000 participants since 1998. He currently serves as Program Manager for EMS's Management and Analytical Support contract with EPA's Office of Superfund Remediation and Technology Innovation (OSRTI), supervising 29 task orders with a budget of $18.7 million, including 15 subcontractors.

Projects: Contaminated Site Clean-Up Information (CLU-IN), CLU-IN Internet Seminars, TIFSD Social Media Implementation Support, CLU-IN Cloud Computing

E-mail Peter Riddle

Jessica Crestwell

EMS Staff PhotoDetail oriented and extremely organized, Jessica has been putting her creative touch on EPA products for over 20 years. With a bachelor's degree in art and design and a concentration in graphic design, Jessica creates clean and uncluttered visual designs for technical illustrations, brochures, fliers, newsletters, reports, table top displays, presentations, conference materials, posters, infographics and logos. Jessica also has a Web Development Certification and designs Web layouts and graphics for CLU-IN and several if its subsections, Trainex, and the Federal Remediation Technologies Roundtabl. In addition to her graphics responsibilities, Jessica manages EMS's support to the Federal Remediation Technologies Roundtable. When Jessica is not designing on the computer, in her spare time for almost 15 years has been baking and designing custom sculpted cakes.

Projects: EPA Brownfields and Land Revitalization graphic mark; Trainex and Brownfields Land Revitalization Toolkit logos; OHHRRAF, TSP Highlights, and NARPM newsletters; Community Involvement Toolkit & Handbook; Brownfields Federal Programs Guide; Brownfields Land Revitalization brochure; Brownfields and Land Revitalization Impacts; RCRA Public Participation Toolkit 2020 update; Are you Considering Renewable Energy or Energy-Efficient Approaches in Your Brownfields Redevelopment?; Land Revitalization How-To Guide factsheet series; Socially Distant Engagement Ideas for EPA Brownfield Grant Appicants; EPA's Land Revitalization website illustrations; Montrose, CO Opportunity Zone Prospectus: Invitation to Invest; and Community Guides to Cleanup Technologies

E-mail Jessica Crestwell

Kevin David

EMS Staff PhotoKevin has been our network administrator for 19 years. With a master's degree in telecommunications management, Kevin is responsible for the day-to-day security and operation of the EMS family of networks and phone system. His all-around computer knowledge allows him to provide help-desk support to our staff and our smaller subcontractors. Kevin also runs all CLU-IN based webinars. He can be found converting PowerPoint presentations into Web-based graphics, updating webpages, handling the sound mixer board for webinar audio, and providing technical support for webinar participants.

Projects: CLU-IN Internet Seminars; CLU-IN security; CLU-IN Cloud Computing; ITRC Data Analysis

E-mail Kevin David

Diane Dopkin

EMS Staff PhotoA geologist by training, for the past 24 years Diane has managed many of EMS's task orders related to hazardous waste cleanup issues. Her work ranges from writing and editing guidance documents and newsletters for environmental professionals, to community guides that explain how cleanup technologies work to stakeholders living and working near Superfund sites. She wrote the section, Small Business Universe Characterization for PFAS, in the draft Assessment of the Potential Costs and Other Impacts of the Proposed Rulemaking to Designate PFOA and PFOS as Hazardous Substances. With prior field experience conducting Superfund remedial investigations, Diane specializes in preparing outreach materials related to soil and groundwater investigations and cleanups, as well as the related issue of vapor intrusion. Her work on EPA's Clu-In.org website, includes recent updates to the Fractured Rock and Phytotechnologies focus areas as well as development of a new focus area on Horizontal Wells for environmental applications.

Projects: Technical Support Project; alternatives to open burn/open detonation of munitions; peer reviews; greener cleanups; Ground Water Forum issue papers; vapor intrusion guidance, Brownfields Technology Primer: Vapor Intrusion Considerations for Redevelopment; Community Guides to Cleanup Methods; long-term monitoring optimization; quality assurance; Technology News and Trends newsletter; real estate development training for contaminated sites.

E-mail Diane Dopkin

Mark Farkosh

EMS Staff PhotoAs our corporate comptroller, Mark has administered EMS's accounting systems, payroll, and contract and subcontract files for more than 19 years. As quality manager for our financial systems, he tracks 25 task order budgets and delivery schedules and oversees funding and invoices for 80 subcontractors and consultants. He reviews and approves accounts payable, and tracks and approves monthly financial reports for all contracts. Mark's thorough management has resulted in no cost disallowances or suspensions during annual federal audits, and our audits have never resulted in any adverse findings.

Projects: Community Involvement Conference; the Removal Managers Meeting; FASTAC Meeting; Oil Managers Meeting; Emergency Preparedness & Hazmat Response Conference

E-mail Mark Farkosh

Edie Findeis-Cromwell

EMS Staff PhotoEdie has been planning, implementing, and evaluating strategies and programs with EMS for over 30 years. She currently serves as EMS's Vice President, Program Manager for EMS's EPA/Office of Land and Emergency Management Small Business Contract, and Program Manager for EMS's EPA Office of Community Revitalization Contract. She provides managerial and technical support in public and legislative affairs, community involvement, technology transfer, community technical assistance, and training, and is EMS's lead for training video development for EPA's Superfund Legacy Learning Initiative. She has facilitated stakeholder meetings and led and organizational development sessions for EPA. A talented database programmer, Edie created and manages EMS's Records Management System, a flexible system designed to meet EPA's needs for rapid response to information requests from Congress, the Inspector General, EPA Regions, and other organizations, as well as FOIAs regarding brownfields grants.

Projects: OBLR's Grants Management Support for Multipurpose, Assessment, Revolving Loan, Cleanup, and Environmental Workforce Development and Job Training Funds, OBLR's Publications and Technical Assistance Support, OSRTI's Superfund Legacy Learning Support, and OCR's Technical Assistance Support For Revitalization and Investment in Communities With Opportunity Zones.

E-mail Edie Findeis-Cromwell

Krissi Folsom

EMS Staff PhotoKrissi considers customer service her specialty and quality control her priority. She has been the voice behind Trainex and CERCLA Education Center (CEC) registration and coordination for the past 23 years. She has supported the OSWER Training Coordination Team for just as long, in addition to helping plan, coordinate, support, and manage numerous other EPA events from training courses and small meetings to large training conferences and awards ceremonies, such as the National Notable Achievement Awards. Outside of work, Krissi sings with the Heart of Maryland Chorus, an all ladies a cappella chorus singing in the barbershop style (http://www.homchorus.org). She is passionate about environmental conservation, keeping her co-workers on task with their recycling practices! And whenever she can squeeze it in, she has made and decorated cakes as a hobby for over a decade.

Projects: Trainex, OSWER Training Coordination Team; Community Involvement Conference; National Site Assessment Symposium and Training; Land Revitalization Training

Awards: 2016 Business Individual Outstanding Acheivement in Recycling, Montgomery County, MD

E-mail Krissi Folsom

Thomas Heim

During his 32 years with EMS, Tom has provided integral support to Superfund's Community Involvement program, including the development of the Superfund Community Involvement Handbook and Toolkit, evaluation of Superfund community involvement programs, preparation of guidance for the Community Advisory Group program, coordination of 12 Community Involvement Conferences, and content development for several of EPA's websites. Tom has developed training courses on public outreach and involvement to be presented at training conferences for community involvement staff, OSCs, and RPMs. Tom also facilitates or supports several EPA workgroups.

Projects: Community Engagement Initiative Workgroups; Community Involvement Conference; Evaluation of Superfund Information Repositories; Planning Workgroups for OSC Readiness and NARPM Training Conferences; Triad Community of Practice

E-mail Thomas Heim

Catherine Johnson

EMS Staff Photo Catherine has over 14 years of experience at EMS, Inc and specializes in the fields of community involvement and technical assistance. Ms. Johnson has served as the project manager for over 10 task orders, including for Superfund's Community Involvement Program and Initiatives Branch (CIPIB) and the Office of Brownfields and Land Revitalization (OBLR) and has managed the Community Involvement Training Program since 2013. Through her task orders she oversees and is involved in the development of training courses and programs, documents, and guidance. Catherine holds a B.A. in English from Florida State University and is a certified Project Management Professional (PMP). Her creative writing background has proven helpful in the development and revision of key documents such as the Community Advisory Group Guidance, the Community Involvement Toolkit, and the Technical Assistance Grant application.

E-mail Catherine Johnson

Sarah Kallgren

EMS Staff PhotoSarah is a 2021 graduate from George Washington University with majors in Geography and International Affairs. She joins the EMS team as an Environmental Communications Specialist, in order to assist on a variety of projects, including EMS support for EPA's Superfund Community Involvement, Brownfields, and Superfund Training programs. She previously interned for the Montgomery County, Maryland, Office of the County Executive helping to author its Climate Action Plan and work on a variety of community engagement projects. During the summer of 2020, Sarah interned with Save Our H20 - an environmental advocacy group based out of Northeast Wisconsin - helping to advocate for stricter PFAS legislation and to increase community awareness of and conversations around local PFAS contamination. In her free time Sarah likes to explore green spaces in and around the DMV and is a rock-climbing novice.

E-mail Sarah Kallgren

Yema Koroma

EMS Staff PhotoYema joins EMS as our Contracts Administrator and Accounting Manager. She is responsible for the administration of our prime contracts and subcontracts ensuring EMS' compliance with all terms, conditions and DCAA regulatory requirements. Yema will serve as a guide to our project managers, consultants, and subcontractors and will monitor budgets, funding and execution of modifications. She will be working closely with the president and corporate comptroller on financial reporting, invoicing, and accounts payables. In addition to her 20 years of experience in federal contracts administration and finance, Yema also brings to the table her vast knowledge of Deltek Costpoint and will be fully involved in EMS' migration from its existing system to Costpoint. In her free time, Yema enjoys creating natural skincare products for all skin types.

E-mail Yema Koroma

Robert Langston

EMS Staff Photo Rob has been connecting people to job-relevant training using a variety of web technologies and techniques with EMS for the past 23 years. I leverage server-side technologies to empower learners to acquire the skills to expand their careers. I also have a keen interest in cybersecurity - chasing bugs and vulnerabilities. I love watching how users interact with my applications (for good or bad), finding things that I missed, and tightening my code for efficiency and security. When problems do crop up, I thoroughly enjoy researching what happened and exploring options to fix whatever went wrong.

Projects: Support conversion of classroom training to online webinars providing programming, logistical, and technical support, managing content in EPA's WebCMS in these areas (Technologies for Cleaning Up Contaminated Sites, Greener Cleanups, Superfund (Selected pages)); Outreach activities for TIFSD (TechDirect); manage TO for applying Section 508 updates to the Tribal Underground Storage Tanks Database (TrUSTD); support operation, maintenance, and expansion of the Trainex website; Deputy TOM on CLU-IN; support registration for Community Involvement Training Program, National Association for Remedial Project Managers (NARPM) Training Program, On-Scene Coordinators Training Program, National Site Assessment Symposium, and various local community involvement sessions

Awards: 2016 Business Individual Outstanding Achievement in Recycling, Montgomery County, MD

E-mail Robert Langston

Abraham Parker

EMS Staff PhotoAbe is an environmental scientist and communications specialist who specializes in developing fact sheets, web content, technical publications, and other outreach materials for diverse audiences. An ecologist by training, he is EMS's technical lead for projects related to ecological revitalization, brownfields redevelopment, and risk assessment. He provides management and technical support to the Superfund Human Health Risk Assessors Forum, the EPA Land Revitalization Coordinators Workgroup, and the Superfund Community Involvement Branch. Abe also is EMS's in-house Spanish translator for fact sheets, reports, and Web content. He holds Bachelors and Masters degrees from Cornell University. In his spare time, you can find him competing in triathlons and marathons or planning his next backpacking trip.

Projects: OBLR Land Revitalization Program Support, Superfund Risk Assessment Support, Superfund Community Involvement and Program Initiatives, Superfund Quick Response Tasks, OEI Exchange Network Grant Program Support

E-mail Abraham Parker

Jennifer Rando

EMS Staff PhotoJen has been with EMS for 11 years. With a master's degree in Environmental Engineering, Jen provides technical support to the radiochemistry projects and all radiochemistry training, including basic radiochemistry and MARLAP courses. In addition, she participates in conference calls for the Risk Assessment Forum and is responsible for providing meeting minutes.

Projects: Brownfields Grant Program, Exchange Network Grant Program, Community Involvement Toolkit Update, Radiological Laboratory Pilot for Incident Response and Recover, Emergency Response Laboratory Capability, Radioanalytical Guidance and Protocols, Development of Rapid Radiochemical Methods for Radionuclides Listed in EPA's Standardized Analytical Methods for Use During Homeland Security Events

E-mail Jennifer Rando