The Association of State and Territorial Solid Waste Management Officials, Inc., (ASTSWMO), is an organization representing the 50 States, 5 Territories and the District of Columbia (hereinafter “Members”). We were founded on October 22, 1974 in the State of Georgia. Our mission is to enhance and promote effective State and Territorial programs and to affect relevant national policies for waste and materials management, environmentally sustainable practices, and environmental restoration.


Click here to view our By-Laws which were approved by the voting members at the 2015 Annual Meeting on October 29, 2015. These by-laws are the Association's governing document, which state the rules and procedures for electing officers, appointing regional representatives on the Board of Directors; and how meetings are conducted. Click here for a list of ASTSWMO Financial Forms (990 Documents):FY 2015, FY 2014, and FY 2013.

Strategic Plan

ASTSWMO has developed a new strategic plan every three to five years and this 2014 Strategic Plan is ASTSWMO’s fifth strategic plan. Since 2001, Strategic Plans have focused explicitly on actions to be undertaken by the Board and Subcommittees that will support the Association’s mission. Priority goals, desired outcomes, and implementation mechanisms have varied over the years.

The 2014 Strategic Plan is organized around three main goals:

To achieve our goals, ASTSWMO will continue to expand its role as a convener of dialogue, strengthen its national policy voice, and support initiatives and innovations relative to our mission. In the process, ASTSWMO will actively explore strategic partnerships where appropriate and will communicate effectively on complex issues in a manner that contributes to public understanding and facilitates transferability of program practices among States.

Click here to read ASTSWMO's 2014 Strategic Plan in its entirety.

Click here to read ASTSWMO's Strategic Plan Year 3 workplans.

Click here to read ASTSWMO's Strategic Plan Year 2 workplans.

Click here to read ASTSWMO's Strategic Plan Year 1 highlights.

Executive Director, Dania Rodriguez, talks Strat Plan

Membership Policies

Voting Members

As stated in the Bylaws, each State/Territory shall designate one individual to be the “Voting Representative” who will be the official contact for their State/Territory. Click Here for our Voting Members Page!

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.

Mark de Bie
Mark de Bie

Mark de Bie has been an active member of ASTSWMO for 16 years. He served ASTSWMO as a TF member, the Region 9 Board Representative, and more recently as the Chair of the Materials Management Sub-committee for the last 6 years. Mark has been with California’s Department of Resources Recycling and Recovery for 25 years and working in the solid waste field for over 27 years. He has been a manager for various program areas including Environmental Review, Permitting, Inspections, Enforcement, Policy and Regulation Development, and Training. He is currently the Deputy Director of the Waste Permitting, Compliance, and Mitigation Division.

Mark received his Bachelor of Arts degree in Biological Sciences from Humboldt State University and a Master of Science in Marine Science from California State University, Stanislaus (Moss Landing Marine Laboratories). He has completed an Integrated Waste Management Certificate program administered by the University of California and received a certificate as a Landfill Technical Associate from the Solid Waste Association of North America.

Before working for the State of California, Mark worked in solid waste programs in Stanislaus County. Prior to his career in solid waste, Mark was a high school science teacher. He also served as a Peace Corp Volunteer in Sierra Leone, West Africa.

Ken Kloo
Ken Kloo
Vice President

As the Director for the New Jersey Department of Environmental Protection’s (NJ DEP) Division of Remediation Management, Ken 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 NJDEP-funded response actions.

Ken’s involvement with ASTSWMO began in the late 1980s when he was invited to participate on the CERCLA Site Evaluation Focus Group, which he later chaired for several years before serving as Chair of the CERCLA & Brownfields Subcommittee. This October he concludes two consecutive three-year terms as Region 2 Representative on the Board of Directors and member of the Finance Committee. He also serves on the ad-hoc Poly- and Perfluoroalkyl Substances (PFAS) Workgroup.

Ken is a 1981 graduate of Seton Hall University with a B.S. in Biology. He began his career with the New Jersey Department of Environmental Protection in 1985 as a field investigator, evaluating contaminated sites for inclusion on the National Priorities List. He has served in various managerial roles within the NJDEP, including Brownfield Administrator, where he implemented a number of innovative approaches for brownfields remediation and redevelopment, including New Jersey’s Brownfield Development Area (BDA) initiative.

Most recently, Ken was instrumental in the New Jersey’s transition from a “traditional” remediation oversight program to one employing Licensed Site Remediation Professionals, or LSRPs, who are retained by remediating parties to perform remediation activities in accordance with NJDEP statutes, regulations and guidance, but without specific direction from, or the day-to-day involvement of, NJDEP regulators.

Ken is a life-long resident of New Jersey, currently residing in Toms River, New Jersey, with his wife, Karen, who manages NJDEP’s Office of Community Relations. Together they enjoy sailing, fishing and crabbing, and most other water-related activities. They are the proud parents of two amazing young men, Alex, an Ensign in the US Coast Guard, and Adam, currently employed with the NJDEP as a GIS Technician.

Bonnie Buthker
Bonnie Buthker

Bonnie Buthker became District Chief of the Southwest District Office of Ohio EPA in February 2012. Having been with Ohio EPA since 1989, Ms. Buthker has served as acting district chief, assistant district chief and has managed the Statewide program for the investigation and remediation of current and former Department of Defense sites in Ohio.

In her role as District Chief, she is responsible for senior-level management and oversight of all technical programs administered in the district including the administration and implementation of division programs in Air Pollution Control, Drinking and Ground Waters, Environmental Response and Revitalization, Materials and Waste Management and Surface Water.

Ms. Buthker has both a Master’s and a Bachelor’s of Science from Kent State University. She is also a graduate of Ohio EPA’s Developing Excellence in Agency Leaders Program. Ms. Buthker served as Chair of ASTSWMO’s Federal Facilities Research Subcommittee from 2012 until October 2014 when she was elected to the role of Vice-President.

April Webb
April Webb

April J. Webb is currently the Hazardous Waste Branch Manager in the Kentucky Division of Waste Management. She graduated from University of Kentucky with a Chemical Engineering degree, is a licensed Professional Engineer, and has over 19 years of experience working in the environmental engineering field. Her experience has provided her with opportunities to manage, lead, and be involved in programs/projects related to areas of environmental planning, compliance, and policy, as well as the restoration and cleanup of contaminated sites.

Ms. Webb’s current oversight projects include the Bluegrass Army Depot, destruction of 523 tons of nerve agents, and the Paducah Gaseous Diffusion Plant, cleanup efforts over 305 acres of contaminated site. Ms. Webb is concluding her three-year term this October on the ASTSWMO Board of Directors representing Region 4.

In her spare time, April enjoys music and dance when not playing soccer mom to her 2 sons age 14 and 9.

Regional Representation

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.

Chuck Schwer is currently the Director of the Waste Management and Prevention Division. This Division oversees the Solid and Hazardous Waste Programs, Underground Storage Tanks, Salvage Yards, and the Site Cleanup Program (Superfund, RCRA, Brownfields, LUST). Chuck was formerly the Program Manager of Vermont’s Site Cleanup Program where he served in this capacity for 27 years. He was also the manager of Vermont’s Petroleum Cleanup Fund. Chuck remains a member of the State’s Hazardous Materials Response Team. Chuck received a MS from University of Vermont and a BS from St. Lawrence University. He is married with two children.

Wilmarie Rivera is the Chief of the Underground Storage Tanks Division in the Water Quality Area in the Puerto Rico Environmental Quality Board (PREQB) since November 2014. She earned a Bachelor of Science in Agriculture with concentration in Agronomy from the University of Puerto Rico, Mayagüez Campus, a Master of Science in Environmental Management with concentration in Environmental Risk Assessment and Management and completed curriculum courses leading towards a PhD at the Doctoral Program in Environmental Sciences at the Turabo University in Puerto Rico. Mrs. Rivera began working at the Puerto Rico Department of Agriculture for 5 years before starting working at PREQB in 2003. From 2003 to 2008 worked as a Remedial Project Manager for the Superfund Division, and from 2008 through 2014 worked as the Federal Facilities Coordinator of PREQB in charge of all DoD investigations and cleanups conducted in Puerto Rico, including the islands of Vieques and Culebra.

Hilary Miller is a Maryland native and 35-year employee with the State of Maryland. She earned a Bachelor of Science degree in Animal Science from the University of Maryland at College Park and spent the first six years of her career at the Prince George’s County Health Department. Ms. Miller began working for the Maryland Department of the Environment’s State Superfund Program in 1985, then from 1987 through 1992, she was the Safety and Training Division Chief for the Department’s Emergency Response Program. For the next 11 years, Ms. Miller was a Regional Manager for the Waste Management Administration, overseeing oil control, hazardous and solid waste management, recycling, lead poisoning prevention, and environmental restoration and redevelopment activities. Ms. Miller 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.

Bud McCarty is the head of the Facility Management Branch in the Hazardous Waste Section in the Division of Waste Management in the North Carolina Department of Environmental Quality. Bud attended Clarkson University (Clarkson College of Technology at the time) in Potsdam NY and studied Civil and Environmental Engineering. This is when Environmental Engineering was knowing the difference between a river and an estuary. Bud is also a Certified Public Manager. Bud began his career as a Construction Engineer working on nuclear power plants.

He has worked for the NC Hazardous Waste Section for the past 30 years in various roles. Bud has experience in writing permits, overseeing corrective action, preparing Authorization packages, overseeing the hazardous waste grant and budget, overseeing the invoices and now overseeing the permitting and corrective action. He was also the lead State person in the WIN/Informed process which transitioned RCRIS to RCRAInfo. Bud has served on the ASTSWMO Permitting and Corrective Action Task Force and was the head of the Information Management Task Force. Currently he is a member of the RCRAInfo Financial Assurance Expert team.

Sandeep Burman has been with the Minnesota Pollution Control Agency (MPCA) for over 20 years, and has worked both in the head office in St. Paul as well as in the Southeast Regional Office in Rochester. In 2013 he became the Manager of the newly formed Site Remediation and Redevelopment Section, responsible for operating all of the MPCA's hazardous substance/hazardous waste cleanup programs. These include all aspects of State and Federal Superfund and Brownfields, Site Assessment, and RCRA Corrective Actions. From 2010 to 2013, Sandeep was a Superfund Unit Supervisor and from 2005 to 2010 he was a Unit Supervisor in the MPCA Petroleum Remediation Program.

Prior to that he served in a variety of technical capacities at the MPCA, working principally on site cleanups but also providing technical support to a variety of programs including emergency response, solid waste, waste water and feedlots. Sandeep also served for several years on the MPCA Fiscal Systems Management Team before recently moving to the newly created Environmental Sustainability Management Team. These lateral management teams are critical and formal components of the MPCA's matrix organization based governance system. From 2013 to 2016, Sandeep also served as the Region 5 representative on the Remedial Action Focus Group of the ASTSWMO CERCLA & Brownfields Subcommittee. Sandeep has earned Master’s Degrees in Applied Geology from the Indian Institute of Technology, Mumbai, India and in Hydrogeology/Civil Engineering from the University of Minnesota, Minneapolis/St. Paul, and is a State of Minnesota licensed Professional Geologist.

Dana Bahar has been with the New Mexico Environment Department since 1994 and has over 20 years of experience overseeing remedial actions of leaking petroleum storage tank sites and Superfund sites. She has managed environmental clean-up programs including the New Mexico Environment Department’s Superfund Oversight Section. Ms. Bahar is currently the Bureau Chief of the New Mexico Petroleum Storage Tank Bureau and oversees permitting, compliance and clean-up programs, as well as budget management, rulemaking, and strategic planning. Ms. Bahar always looks forward to the exchange of ideas and experiences with her colleagues at the ASTSWMO meetings which she has attended since 1996.

Ms. Bahar has a Bachelor of Arts in Geology from Smith College and a Master of Science in Geology from New Mexico State University, where she continued her studies of volcanoes after a her tenure as an intern at the Smithsonian Global Volcanism Institute.

Alex Moon’s interest in the environment started at an early age growing up in Duluth, MN. He attended college locally at the University of Minnesota-Duluth on a baseball scholarship. After growing tired of shoveling snow off the field before games, Alex put down the baseball glove and picked up the biology books, earning a bachelor’s degree in Environmental Sciences in 1999. After college, Alex followed his family to Des Moines, IA where he’s worked at the Iowa DNR for the last 16 years. He currently serves as Chief of the Land Quality Bureau working to improve Iowa’s groundwater and land resources. Alex is known for his flexible approach to problem solving and ability to communicate effectively with just about anyone. He is married to a patient woman (Alex goes on too many fishing trips) and is a pushover when it comes to his daughters, Zoey (8) and Nora (a 4 year old affectionately called “the Grizz” because she can be a bear!). His favorite quote is, “Don't ever confuse the two, your life and your work. The second is only part of the first.”

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.

Ameko Pato is the Director of the American Samoa Environmental Protection Agency (AS-EPA). He was appointed by Governor Lolo Moliga in 2013 and has committed his appointment to strengthening AS-EPA’s enforcement system and expanding the reach of agency services to the community with a focus on traditional villages. Prior to his appointment, Pato held various leadership and teaching positions at the American Samoa Department of Education for over 20 years. He has also spent a significant portion of his teaching career in the Commonwealth of Northern Marianas. Pato values his leadership and Pacific region career experience and genuinely believes that Pacific Island communities have a unique approach to community and environmental governance and that it should be the focal point of environmental policy and regulation in American Samoa. His tenure has placed a special emphasis on the Territory’s littering and marine debris pollution problems, areas where he has deployed substantial community outreach and is committed to building capacity via public policy and mitigation projects. Pato is an active member of the Association of State and Territorial Solid Waste Management Officials (ASTSWMO) and the Secretariat of the Pacific Regional Environment Program (SPREP). He is also the Chairman of the American Samoa Island-wide Clean-up Committee (IWCC) and the Co-Chairman of the Territory Taskforce for Climate Change (TFCC).

Laurie Davies is currently Washington State’s Program Manager for solid waste and materials management. Previously, she was a regional manager for Washington’s Hazardous Waste and Toxic Cleanup program, which included solid waste planning, permitting, compliance and grants management. She also works as a Unit Supervisor for the Nuclear Waste Program working on the cleanup of the Hanford Nuclear Waste site. Ms. Davies has 10 years of experience managing the regional solid waste program for Washington State and 7 years as the Waste 2 Resources Program Manager. Prior to her time with Washington State, she worked as a planner for Whitman County in Washington State for 3 years and a seasonal Park Ranger for the National Park Service for 4 years.


ASTSWMO Lifetime Achievement Award

In 2002, ASTSWMO instituted the ASTSWMO Lifetime Achievement Award, to recognize an outstanding individual who has worked or is currently working in State government in the areas of solid and hazardous waste management, sustainability/materials management, underground storage tanks, or contaminated site clean-up.

The purpose of the award is to recognize work done on behalf of the States and in furtherance of ASTSWMO's mission 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.

The annual solicitation of nominations is posted on the ASTSWMO homepage each spring. The award is presented at the ASTSWMO Annual Meeting.

Past ASTSWMO Lifetime Achievement Recipients:

  • 2016:  John Regan (NH)
  • 2013:  Stan Phillippe (CA)
  • 2012:  Gary King (IL)
  • 2011:  Jennifer Kaduck (GA)
  • 2010:  Jeff Edson (CO)
  • 2009:  Richard Swanson (GA)
  • 2008:  Mark Giesfeldt (WI)
  • 2007:  Tom Kennedy (ASTSWMO)
  • 2006:  Barbara Simcoe (ASTSWMO)
  • 2005:  Bill Child (IL)
  • 2004:  Hector Mendieta (TX)
  • 2003:  John Taylor (GA)
  • 2002:  Norman Nosenchuck (NY)

Below is a List of ASTSWMO Past Presidents:
(years represent year of Presidency)

  • 2016:  Bonnie Buthker (OH)
  • 2015:  Mike Forbeck (PA)
  • 2014:  Ryan Benefield (AR)
  • 2013:  Jeffery Steers (VA)
  • 2012:  Ed Thamke (MT)
  • 2011:  Stephen A. Cobb (AL)
  • 2010:  Gary W. Baughman (CO)
  • 2009:  Peggy Harris (CA)
  • 2008:  Michael A. Savage (OH)
  • 2007:  Gerald W. Hardy (AL)
  • 2006:  Terrence Gray (RI)
  • 2005:  Stephen Hammond (NY)
  • 2004:  Jay Ringenberg (NE)
  • 2003:  Jennifer Kaduck (GA) 
  • 2002:  Mark Giesfeldt (WI) 
  • 2001:  David Finley (WY)
  • 2000:  Michael Kelly (NC) 
  • 1999:  James Warner (MN) 
  • 1998:  Howard Roitman (CO)
  • 1997:  Nicholas DiPasquale (DE) 
  • 1996:  Mary Jean Yon (FL) 
  • 1995:  Teresa Hay (IA)
  • 1994:  Daniel Eden (TX) 
  • 1993:  Paul Didier (WI) 
  • 1992:  Daniel Cooper (AL) 
  • 1991:  Cheryl Koshuta (ID) & Daniel Cooper (AL)
  • 1990:  David Shelton (CO)
  • 1989:  William C. Child (IL) 
  • 1988:  Bryan Dixon (TX) 
  • 1987:  John Taylor (GA) 
  • 1986:  Robert Malpass (SC) & William Cass (MA)
  • 1985:  Earl Tower (WA)
  • 1984:  Donald Lazarchik (PA) 
  • 1983:  Richard Valentinetti (VT) 
  • 1982:  Norman H. Nosenchuck (NY)
  • 1981:  Jack Carmichael (TX) 
  • 1974 – 1980:  Moses McCall (GA) 


Dania Rodriguez

Dania Rodriguez
Executive Director
Board of Directors and Administration
(202) 640-1061

Kerry Callahan

Kerry Callahan
Senior Program Manager
Hazardous Waste Subcommittee
Materials Management Subcommittee
(202) 640-1062

Charles Reyes

Charles Reyes
Senior Program Manager
Federal Facilities Subcommittee
Tanks Subcommittee
(202) 640-1063

Scott Lauher

Scott Lauher
Junior Program Manager
CERCLA and Brownfields Subcommittee
(202) 640-1064

Barbara Hall

Barbara Hall
Office Administrator
(202) 640-1066

TJ Gannon

Timothy J. Gannon
Web Design & Social Media
(202) 640-1065

Contact Us

1101 17th Street NW, Suite 707
Washington, DC 20036

Phone: (202) 640-1060
Fax: (202) 331-3254