The Board of Directors

The Executive Committee

The Executive Committee of the Association is comprised of the President, Vice-President, immediate Past President, and Secretary-Treasurer. A Vice-President is elected annually from a slate of candidates by a majority vote of the State Voting Representatives. The Vice-President serves a one-year term before advancing to the role of President. At the conclusion of the President’s one-year term he/she advances to the position of immediate Past President for a one-year term. The Secretary-Treasurer position is elected to a two-year term by a majority vote of the Association's State representatives.


J. Ryan Benefield, President

Ryan BenefieldRyan Benefield is the Deputy Director of the Arkansas Department of Environmental Quality (ADEQ), a position he has held since February of 2009. As Deputy Director, Ryan has responsibility over the Water Division, Mining Division, Hazardous Waste Division (which includes the State and Federal Superfund Programs, Brownfields Program, Meth Lab Cleanup Program, and the Elective Sites Cleanup Program), Public Outreach and Assistance Division, Environmental Preservation and Technical Services Division and the Records Management Section of ADEQ. He has worked at ADEQ since 2004 and has served as the Chief of the Hazardous Waste Division and as Technical Branch Manager in the Solid Waste Division.

Prior to coming to ADEQ, Mr. Benefield spent two years as the City Engineer for the City of Cabot, Arkansas, and worked six years in environmental consulting primarily focused on the permitting, design and construction oversight of municipal and industrial solid waste management facilities.

Mr. Benefield served on the ASTSWMO Board of Directors as the Region 6 Board Representative from 2008 to 2012. During his time on the Board, he has been very active in the creation of the current ASTSWMO strategic plan, the update to the ASTSWMO bylaws, and the Coal Ash Legislation. Mr. Benefield served as the Board Liaison to the Hazardous Waste Subcommittee throughout his time on the board. He has participated in several ASTSWMO work groups including the Coal Ash Ad-Hoc Work Group.

Mr. Benefield has been married for 16 years and is the father of two (Parker, age 10, and Olivia, age 8). He is a Registered Professional Engineer in the State of Arkansas and has a Bachelor of Science in geological engineering from the University of Missouri at Rolla (Now Missouri S&T).

Michael Forbeck, Vice-President

Mike ForbeckMike Forbeck has over 31 years of public service experience in the waste management and the environmental clean-up fields. He currently is the Waste Program Manager for the Pennsylvania Department of Environmental Protection (PA DEP) South West Region. In this leadership role, he oversees a staff responsible for permitting, compliance, and waste minimization, as well as planning of all waste related issues. He also has worked as a Program Manager for Air, Water, and Oil and Gas programs, as well as interim Director of the Land Recycling and Waste Management Bureau with the PA DEP.

Mr. Forbeck has also worked as a compliance manager for Weavertown Environmental, a private environmental clean-up company, and as a consultant on compliance and permitting issues for several waste management companies.
Mr. Forbeck has been an active member of ASTSWMO since 2005 and currently serves as the Chair of the Beneficial Use Task Force. This Task Force recently released the Survey on Oil and Gas Exploration and Production Wastes. He also was a member of the ASTSWMO Coal Ash Ad-Hoc Work Group and currently is working with the Materials Management Subcommittee and Radiation Focus Group on TENORM waste in the Oil and Gas Industry.

Mr. Forbeck loves the outdoors and running and shares this passion with his family and friends, especially in his capacity as an adult leader for the Boy Scouts of America and a marathon coach for Leukemia and Lymphoma Society Team in Training. He holds a Bachelor of Science in environmental engineering from Penn State University and teaches continuing education for professional engineers.

Jeffery Steers (VA), Past-President

Jeff SteersJeff Steers has nearly 30 years of environmental policy and operational experience in public service and is currently the Director of the Virginia Department of Environmental Quality’s Land Protection and Revitalization Division. In this leadership role, Mr. Steers is responsible for administering the solid, hazardous and underground storage tank regulatory programs under RCRA, cleanup programs under CERCLA/Superfund including federal facilities, the state’s voluntary remediation programs and DEQ’s risk assessment programs. Jeff has extensive experience in strategic planning and team consensus building both in the public and private sectors and is a trained professional facilitator. His prior experience includes serving as the Director of DEQ’s Northern Regional Office, where he provided management oversight for operational aspects of permitting, compliance and ambient monitoring programs in all environmental media and has participated in numerous waste and air/water multi-media civil and criminal enforcement cases.

Prior to joining DEQ, Mr. Steers spent 20 years with the Ohio Environmental Protection Agency working in the Agency’s water and waste programs as well as serving as the Assistant Chief of a District Office with management responsibility for 140 staff in the agency’s air, water, waste and drinking water programs. His experience includes conducting RCRA solid/hazardous waste inspections and permitting as well as cleanup oversight under CERCLA. In these roles, he represented the agency on several technical and citizen advisory boards, including a restoration advisory board at a Formerly Used Defense Site. Jeff has conducted numerous technical training sessions across the country on a variety of RCRA and multi-media topics. He previously served as a faculty member for US EPA’s RCRA Training Institute.

Mr. Steers holds a Bachelor of Science in civil engineering from the University of Toledo. He is an active member in ASTSWMO and served on the Municipal D Waste Task Force. He serves as a Board Member of the Virginia Chapter of the Solid Waste Management Association of North America (SWANA).

Nancy Marker (DE), Secretary-Treasurer

Nancy Marker possesses over 28 years of experience in protecting human health and the environment. Currently Ms. Marker administers multiple environmental programs within the Delaware Department of Environmental Control (DNREC) as Environmental Program Administrator for the Waste Section. Those programs include hazardous waste permitting, compliance, and corrective action; hazardous waste generator compliance; solid and hazardous waste transporter permitting; solid waste facility permitting and compliance; scrap tire management and cleanup; and voluntary programs for solid waste recycling, pollution prevention, and sustainable materials management. While at DNREC, Ms. Marker has also worked in the state’s Site Investigation and Remediation programs and Emergency Response programs.

Prior to Ms. Marker's employment in the public service she worked in the private sector doing environmental consulting. Her work involved management of multi-million dollar cleanups, serving as project lead for the air, water, and waste aspects of the site investigation and cleanup.

Ms. Marker has participated in various aspects of ASTSWMO since 1988. She has served on various Hazardous Waste task forces including the Definition of Solid Waste, HW Enforcement, and HW Corrective Action. From 2009 to 2011 Ms. Marker served as the Region III States' ASTSWMO Board Representative and Board Liaison to the Solid Waste Subcommittee and the Sustainability Subcommittee. In October of 2011, Ms. Marker was appointed by the Board to fill the Treasurer position until October of 2012.

Ms. Marker holds a Bachelor of Science in environmental science and focused on engineering geology at the master’s level at Drexel University.


Regional Representation

Members of the Board other than officers are elected by a State regional caucus and consist of one representative from each of the 10 EPA Regions. Each Board member serves an initial 3-year term and may serve a maximum of two full consecutive 3-year terms with the consent of their regional caucus. Board members are vested with the authority to carry out the affairs of the association and to exercise leadership in raising and exploring policy issues of potential concern to the membership.

In the photo, the Regional Representatives are in order from left to right, front then back rows.

Region 1
George Desch (VT),

George Desch is the Director of the Waste Management and Prevention Division for the Vermont Department of Environmental Conservation. He has over thirty years of professional engineering experience working for the State of Vermont in various capacities in wastewater treatment facility design and operations, residuals management, Brownfields redevelopment, hazardous sites management, and solid and hazardous waste facility management.

Mr. Desch has a Bachelor of Science in civil engineering from Newark College of Engineering, in Newark, NJ. He and his wife live in the capital city of Montpelier, where they are managing life as empty nesters with relative ease while barely keeping pace as grandparents.

Region 2
Ken Kloo (NJ),

As the Director for the Division of Remediation Management at the New Jersey Department of Environmental Protection, Ken Kloo is responsible for all site remediation activities in New Jersey, including those performed by Licensed Site Remediation Professionals on behalf of responsible parties and brownfield developers, CERCLA, RCRA corrective action, federal facilities, and DEP-funded response actions. He has been with DEP for 28 years.

Mr. Kloo earned a Bachelor of Science in biology from Seton Hall University and completed requirements for certification as a Professional Wildlife Biologist at Rutgers University.

Mr. Kloo has been actively involved with ASTSWMO since 1989. He previously served as a member and then Chair of the Site Evaluation Focus Group. Immediately prior to his current role as Region 2 Board Representative, he served as Chair of the CERCLA and Brownfields Subcommittee. 

Region 3
Hilary Miller (MD),

Hilary Miller served the first six years of her career at the Prince George's County Health Department. In 1985, Ms. Miller began working for the Maryland Department of the Environment's State Superfund Program. From 1987 through 1992, Ms. Miller was the Safety and Training Division Chief for the Department's Emergency Response Program. For the next eleven years, Ms. Miller was Regional Manager for the Waste Management Administration. She served as the Program Manager for the Waste Diversion and Utilization Program (formerly the Recycling and Operations Program), overseeing various Statewide recycling, waste diversion, sewage sludge, hazardous waste, and animal feeding operations activities for the Land Management Administration from 2004 through November 2013, when she was appointed as the Deputy Director for the Land Management Administration.

Ms. Miller attended the University of Maryland where she obtained a Bachelor of Science in Animal Science.

Region 4
April Webb (KY),

April Webb began her career at the Kentucky Department of Environmental Protection (KDEP) in September 1997. After six years working in the permitting branch of the Division for Air Quality, she transferred to the Division of Waste Management, Hazardous Waste Branch in October 2003. In August 2005, she was selected as Branch Manager of the Hazardous Waste Branch in KDEP’s Division of Waste Management and continues to serve in that position.

Ms. Webb attended the University of Kentucky where she obtained a Bachelor of Science in chemical engineering in May 1997. In January 2003, she successfully obtained her Professional Engineer license in environmental engineering.

Region 5
Bruce Oertel (IN),

As Chief of the Indiana Department of Environmental Management (IDEM) Remediation Services Branch, Bruce Oertel is responsible for State and federal cleanup programs including Voluntary Remediation, State Cleanup, Superfund, Site Investigations, Defense Environmental Restoration, and remediation technical issues at Brownfield sites. 

Prior to his initial service at IDEM, Mr. Oertel served for eight years as a Water Resource Planner for the Indiana Department of Natural Resources (IDNR), preparing U.S. Army Corps of Engineers Section 404 Permits for the Flood Plain Management Program, planning and managing flood mitigation projects, and performing water resource studies. 

At IDEM, he first served as a project manager in the Superfund Pre-Remedial Site Investigation Program in the late 1980’s.  In 1990, Mr. Oertel left IDEM to own and operate an environmental consulting firm. In this capacity, he worked extensively with property owners, real estate agents, bank officers, and attorneys to address environmental issues at properties throughout the State.  He returned to IDEM in 1996 as a project manager overseeing the remediation of leaking underground storage tank sites under the Excess Liability Trust Fund (ELTF). He then worked as a project manager in the State Cleanup Program before accepting his current Branch Chief position. 

Mr. Oertel has served on the National Advisory Board of the National Brownfield Association, on the University of Cincinnati Superfund Basic Research Outreach Advisory Board, and the Governor’s Meth-Free Indiana Coalition.  He currently serves on the Board of Directors of the Association of State & Territorial Solid Waste Management Officials (ASTSWMO), and the IU Advisory Committee for the Bachelor of Science Degree in public and environmental health.

Region 6
Jon Roberts (OK),

Jon Roberts has been with the Land Protection Division of the Oklahoma Department of  Environmental Quality (ODEQ) since 1991, and he currently directly supervise the managers of the Hazardous Waste Compliance, Hazardous Waste Permitting, and Radiation Management Sections. His tenure with ODEQ has given him extensive experience in all aspects of ODEQ's RCRA Subtitle C and D permitting, compliance, and enforcement programs, as well as authorization, rulemaking, strategic planning, and budgeting. Prior to ODEQ, Mr. Roberts was a weather officer with the USAF, where he lead both U.S. and foreign enlisted and civilian weather personnel in providing weather support for highly-classified DOD customers, strategic and tactical Air Force combat wings, and long-range surveillance

Mr. Roberts has a Bachelor of Science in meteorology from the University of Oklahoma and a Master of Science from Utah State University, where he studied the physics of the low-Earth orbit environment.

In his spare time, he enjoys walking or riding his bike and can always be found watching or going to Oklahoma Sooners football games between September and January of each year.

Region 7
David Haldeman (NE),

David Haldeman is the Administrator of the Nebraska Department of Environmental Quality (NDEQ) Waste Management Division. He began working at NDEQ in 1986 as a compliance specialist in the Leaking Underground Storage Tank and Emergency Response programs. In 1992, he became a section supervisor responsible for the development and implementation of the Subtitle D Program. His current responsibilities include overseeing NDEQ’s Solid Waste Program, several waste management grant programs, and several remediation programs including the Superfund, Brownfield, and the Nebraska Voluntary Cleanup programs.

Mr. Haldeman received a Bachelor of Science in geology from the University of Nebraska Lincoln. He has been active in the Association of State and Territorial Solid Waste Management Officials during most of his tenure at NDEQ as a member and prior chair of the Municipal D Task Force, and for a short period of time as chair of the Solid Waste Subcommittee.

Mr. Haldeman enjoys many outdoor activities, including running, biking, hunting, and fishing.

Region 8
Joe Schieffelin (CO),

Joe Schieffelin manages the Solid and Hazardous Waste Program within the Hazardous Materials and Waste Management Division at the Colorado Department of Public Health and Environment. He has been with the Hazardous Materials and Waste Management Division for over 22 years working in various roles: remediation of contaminated hazardous waste sites, managing the hazardous waste compliance and enforcement program, and managing the Solid and Hazardous Waste Program. Mr. Schieffelin enjoys the variety, the fast pace, and the great staff he works beside.

Prior to working at the department, Mr. Schieffelin spent 10 years as an oil and gas exploration geologist. He holds a Bachelor of Science in geological engineering from the Colorado School of Mines.

In his spare time, Mr. Schieffelin enjoys spending time with his wife and four children, building furniture, playing guitar, reading, and bicycling like crazy. He is a Colorado native, occasionally drives the speed limit, needs to eat better and floss more, and wishes the Rockies had better pitching.

Region 9
Dave Emme (NV),

Dave Emme is currently a Deputy Administrator with the Nevada Division of Environmental Protection (NDEP). His areas of responsibility include the Solid and Hazardous Waste programs, UST/LUST and Remediation programs, and the Drinking Water and SRF programs.

Mr. Emme has more than 25 years of experience with environmental regulatory programs. Prior to his environmental career, Mr. Emme worked as a Hydrologist with the US Geological Survey.

Mr. Emme holds a master’s degree in hydrogeology from the University of Nevada, Reno, and a bachelor’s eegree in geology from the University of Montana.

Region 10
Wendy Wiles (OR),

Wendy Wiles has more than 30 years of private business and public service experience in the environment, health, and safety management field. In 2007, she became the Land Quality Administrator for Oregon’s Department of Environmental Quality. In this capacity, she is responsible for overseeing land-related programs, including environmental cleanup, emergency response, solid and hazardous waste, and underground storage tanks. She also serves on the Department’s Executive Team.

Ms. Wiles has a Bachelor of Science in environmental health from Oregon State University. She earned a Master of Science in industrial relations in 1987 from the University of Oregon.


Home | Contact Us | Search | Site Map
Thank you for visiting our website. Please come again soon.


ASTSWMO's mission is to enhance and promote effective State and Territorial programs for waste and materials management, to encourage environmentally sustainable practices and to affect relevant national waste and materials management policies.