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LEA staff and board

LEA Staff

Colin Holme, Executive Director
, graduated from the University of Maine after studying environmental science and oceanography. In 2018, Colin was promoted to executive director after years of working with the previous director on local and statewide lake issues. Before taking on this new role, Colin ran LEA’s water testing, mapping, and mitigation programs. He has been a lead coordinator for numerous watershed surveys and regularly works with municipal planning boards and staff to review large and small projects. He has coordinated GPS photo inventories of many of the nearby lakes and created the official shoreland zoning maps for six surrounding towns. Colin has served on the previous two statewide Shoreland Zoning study groups and plays an active role in his hometown’s local government.


Mary Jewett, Director of Education and Invasives Prevention, graduated from Unity College with a bachelor’s degree in science ecology in 2006. Mary’s early career at LEA began in high school when she volunteered to help with the water testing program during one summer. Since then, her volunteer work has led her to focus on diverse environmental topics. Mary worked for a summer at Avian Haven in Freedom, Maine where she helped in the rehabilitation of wild birds. She also completed a prior term of AmeriCorps service in Cherokee, North Carolina where she used field research to determine the fire risk on the Cherokee reservation. Mary has a passion for education and believes that her own feelings about the natural world inspire others to care about it too.


Jenny O’Connor, Membership Coordinator, lives in Bridgton with her husband and family. She has a deep appreciation for the region’s beautiful lakes and rolling hills and greatly enjoys the sense of community that comes from living in a rural area. She has studied Liberal Arts and graduated from Southern Maine Community College and has been involved in Bridgton’s Parent-Teachers Association.



Maggie Welch, Staff Limnologist, earned a BS in environmental science and a MS in biology from the University of Southern Maine. Maggie began her professional career as a field biologist collecting samples from wildlife, in the lab conducting PCR/QPCR, in the insectary conducting pesticide resistance studied, and to species identification of ticks and mosquitoes. Maggie’s work at LEA includes managing the summer water quality program and assisting with advanced water testing initiatives.



Dr. Ben Peierls, Research Director, grew up on Long Island, New York and spent many summers with family on Sand Pond in Denmark. Ben and his brother maintain a camp there to this day. Since getting a Bachelor’s degree in biology from Cornell University, he has been actively involved in aquatic ecosystem research, including studies of lakes, large rivers, and estuaries. His focus has been on phytoplankton, microbial ecology, and general water quality issues, such as eutrophication. Ben received an M.S. and a Ph.D. in marine sciences from the University of North Carolina at Chapel Hill and has done field work and data management for several long-term estuarine monitoring programs. He enjoys performing music and many outdoor activities, including boating on and swimming in lakes, when not studying them.



Michael Flannery, Milfoil Control Program Coordinator, graduated from the University of Maine in the spring of 2022 with a bachelor’s degree in Wildlife Ecology. After graduating, he began working for LEA as a summer intern on the Milfoil Dive Crew. He spent the summer working on the Songo River harvesting Milfoil and installing benthic barriers to slow the growth and reduce the spread of invasives. Michael is passionate about conserving and protecting Maine’s waterways from invasives that alter the natural ecosystems. In his free time, Michael enjoys hunting, fishing, hiking, and skiing.



Rachel Harper, Field Technician, studies biology at the University of Southern Maine. She first joined LEA as a milfoil diver. After the first summer she learned about the water testing program and joined LEA as a water testing intern for two summers. She has now joined LEA as a full-time field technician! Rachel earned her Junior Maine Guides license in 2017 through Camp Natarswi, a Girl Scout camp near Baxter State Park. Rachel spends her free time gardening, baking and spending time enjoying the outdoors.


Emlyn Emerock, Environmental Educator, has a BS in Conservation Biology and MS in Human Dimensions of Natural Resources. Emlyn is passionate about environmental literacy and will find any excuse to talk about trees. She previously managed Nature Up North, an outreach program at St. Lawrence University, and has worked with the NH Loon Preservation Committee, the Appalachian Mountain Club, and Kezar Lake Watershed Association. Emlyn enjoys skiing, paddling, and exploring the woods with her partner and dog.




Board of Directors – 2023-2024


President: Lydia Landesberg, Waterford, Maine. Lydia spent most of her life in the New York metro area and moved to Maine in 2015. She graduated from SUNY, Empire State College with a BA in creative writing. A life-long environmentalist and community activist, Lydia served as president of the Katonah Village Improvement Society and led the organization’s successful legal battle which prevented the Martha Stewart Living Omnimedia Corp. from obtaining a broad trademark on the name of her hometown. Her son Stuart is the founder and CEO of Grove Collaborative, a certified B Corp. and the world’s first plastic-neutral retailer. Her four children have a strong attachment to the Lakes Region and enjoy visiting her home on Bear Pond. When she is not outside enjoying the lake, Lydia runs a hobby business selling antique glass and China on eBay.


Vice President: Jessica Orgo, Bridgton, Maine. Jessica was born and raised in Millinocket, ME and spent her summers at her family’s camp on Smith Pond, overlooking Mt. Katahdin. A graduate of the University of Southern Maine, she studied and pursued a career in Human Resources, which took her to Phoenix, AZ and Charlotte, NC, where she enjoyed the experience of working as HR Manager for a major airline. While in Charlotte, Jessica completed the city’s Cultural Leadership Training through the Arts & Science Council, specifically directed at preparing individuals for nonprofit board service and went on to serve as an active board member with Sustain Charlotte, United Way Young Leaders, and Charlotte Area Society for Human Resource Management (CASHRM). Additionally, she was named 2015 HR Professional of the Year by CASHRM and in that same year, a recipient of the Forty Under 40 Awards through the Charlotte Business Journal. Grateful to be back in Maine and for the opportunity to live and work in the same community while continuing her HR career with a 4th generation family-owned business, she and her husband, Nicholas, settled in Bridgton in 2017 with their two Yorkies and have since added two sweet girls to their family, Stella and Natalie. Jessica and her family have a deep passion for the Lakes Region and look forward to contributing toward its growth and development for many years to come.


Secretary: Mark Priola, Bridgton, North Bridgton, Maine. Mark has been working in the landscape and nursery industry for over 20 years. After working as nursery manager under Dana Littlefield, owner of Shaker Hill Nursery in Poland Spring, and later for Jeff O’Donal, owner of O’Donal’s Nursery in Gorham, Mark started working toward a business degree at USM and the idea of Green Artisan. Founded in 2012, Green Artisan is based in the lakes region of Maine, with a concentration on native plants and natural hardscapes. Mark is the father of two, a musician, and an artist, living with his family in North Bridgton.


Treasurer: Charlie Tarbell, Waterford, MaineCharlie grew up, summers, on Keoka Lake in Waterford. He received a BA in Economics from the University of Massachusetts, Amherst. He also earned a Certified Financial Analyst (CFA) designation. After a 30-year career in economic consulting, strategic planning, and corporate finance in Boston, Portland, Maine and San Francisco, he again lives on Keoka Lake. Charlie spent 25 years volunteering for the Maine Chapter of the National Multiple Sclerosis Society, serving twice as Board Chair. He has been President of the Keoka Lake Association for 15 years, serves on the Waterford Planning Board, and volunteers for the Waterford Library and the Alan Day Community Garden in Norway.


Andrew Black , Portland and Sweden, Maine. Growing up in a military family, Andrew lived throughout the U.S. and in Italy and Germany and, whenever possible, spent time at the family homestead in Sweden, Maine. Since 2001 he has been an Assistant Attorney General with the State of Maine and since 2004 the Chief of the AG’s Professional and Financial Regulation Division. Before joining the AG’s Office, Andrew worked at a law firm in Portland and as in-house counsel for a Fortune 500 company. He is a graduate of Boston University and the University of Maine School of Law and was an infantry officer in the United States Marine Corps. Although he has retired from playing and coaching soccer, he still enjoys hiking, running, and kayaking. Andrew and his wife, Monica, spend as much time as possible at their camp on Keyes Pond and, when lucky, are joined by their two children.

Marion Browning, Malden, Massachusetts and Naples, Maine. Marion has earned a masters degree in Adult Education from USM and a BS in Business Administration from Babson College in Wellesley, MA. She has worked first in the insurance industry and then she specialized in nutrition service and education, both in Massachusetts and Maine. She currently works as a food distribution coordinator for the Massachusetts Department of Elementary and Secondary Education. Marion joined the LEA board in 2022. In her free time, she enjoys hiking and cross-country skiing.

Patrica Burns, Bridgton, Maine. Patty grew up in Massachusetts and spent most free time enjoying Maine. Patty is a registered nurse, graduating from American International College with a Bachelors degree in nursing and from University of Massachusetts with a Masters degree in nursing. She has more than 40 years of professional experience, holding positions in hospital practice, medical education, and executive leadership. She retired in September 2021 and is committed to supporting programs and services that support others and the community where they live.

Steve Gilman, Belmont, Massachusetts. Steve is a pharmaceutical executive who retired after 35 years in research, development, and business leadership in the biopharmaceutical industry. He continues to serve as a board member for several public pharmaceutical companies and the Atrium School, a private progressive elementary and middle school. Steve has a long association with southern Maine. His parents grew up in Portland, and his aunt and uncle founded The Lobster Shack in Cape Elizabeth. He and his family vacationed every year at various rental cottages in the Lakes Region until buying their summer residence in Naples. Steve received his Ph.D. and  M.S. degrees in microbiology from Pennsylvania State University, his post‑doctoral training in immunology at Scripps Clinic and Research Foundation, and a B.A. in microbiology from Miami University of Ohio.

Karen Harding, Bridgton, Maine. After visiting the Bridgton area in 1990, Karen and her husband bought a vacation home near Shawnee Peak for their three sons to enjoy skiing and hiking. In 1999, while their sons were finishing college, they bought their dream home in Bridgton with a Shawnee Peak (Pleasant Mountain) view. Karen is a graduate of Northeastern University in Boston with a BS in Nursing and Salem State College (now University) with an MS in Nursing Education and Administration. She has worked in various areas of nursing, both in Massachusetts and Maine, with a specialty in wound and ostomy care, having managed a clinic at Bridgton Hospital until 2021. She is currently working at Bridgton Hospital as the Interim Nursing Education Coordinator. She is also quite active in church activities. She and her husband continue to welcome guests into their Bed and Breakfast, The Pleasant View, Too (when their children and grandchildren are not visiting, since she has always said that family comes first!). She loves learning about the Maine woodland and its effect on the lakes.

Wells Jacobson, Manchester, Connecticut. Wells was introduced to the Lakes Region as a boy, spending five happy summers at Camp Winona on the shores of Moose Pond in Bridgton. Finding that it was easier to take the boy out of camp than to take camp out of the boy, about thirty years ago, after vacationing in the area for several years, he and his wife, Peg, purchased a rustic camp on Long Lake in Harrison. Their three children have since become enchanted with Pleasant Mountain and the shores of Long Lake. Wells graduated from Middlebury College and Hahnemann Medical College. He trained in orthopedic surgery at the University of Connecticut and followed with a trauma fellowship in West Germany and then at the Harborview Hospital in Seattle. Until retirement, Wells practiced in Manchester, CT.

Kim McCubrey, Bridgton, Maine.  Kim’s love of the outdoors and passion to protect nature started at a young age in the Adirondacks of NY, where she spent many hours outdoors at her parents’ camp, proudly earned every possible nature and science badge in Girl Scouts, and then was very active in the Burnt Hills-Ballston Lake High School Environmental Club. Kim is an Occupational Therapist, with advanced training for the geriatric population. As a homeschooling mother of three boys, she has had tremendous opportunities for learning and new experiences. She has enjoyed participating in the Lake Region Sailing Club, coaching a robotics team, and participating in the Stream Explorers program, which surveys streams for the presence of macroinvertebrates to indicate water quality. Volunteering for the Maine Adaptive Ski Program has been a wonderful opportunity for her to use her gift of helping others and her love of the outdoors; this has taught her a motto by which she now lives: “Safety, Fun, and Learning!”. Kim and her family have been long-time participants in LEA education programs. She has worked as a Courtesy Boat Inspector and is excited to support this organization as a board member.

George Migausky, Boston, Massachusetts and Harrison, Maine. George grew up spending summers at his grandparents’ Maine camps on Great Pond in Hancock County and Pushaw Lake in Old Town. After graduating with a B.S. from Boston College and an MBA from Babson College, he spent the majority of his professional career as an executive for several life science and biopharmaceutical companies. He continues to serve on the boards of several public and private life science companies and is a Trustee at Massachusetts Eye & Ear Hospital in Boston. George and his wife, Annmarie, have owned a home on Long Lake in Harrison since 1994, spending summers on the lake and winters skiing at Sunday River and Shawnee Peak with their three children (and now four grandchildren), who all enjoy frequent visits. They now split their time between Harrison and Boston, enjoying the beauty of the Lakes Region.

David Rosen, North Bridgton, Maine. David grew up in Michigan where his lifelong passion for lakes and water activities first blossomed. His summers during college were spent exploring all corners of Maine and deepening his appreciation for the uniqueness of our state and region. After completing his studies at Western Michigan University in Education, he has since been teaching science in a plethora of settings for 15 years. David currently teaches science at Bridgton Academy and lives near Long Lake with his family.

Bob Schwaller, Naples, Maine. Bob and his wife Joyce live year-round on Naples’ Lambs Mill Farm, where they tend gardens, hike, and work on restoration of the farm’s 1880s barn and farmhouse. Bob grew up in Houston in the ’60s. He received a BA in Journalism from Trinity University, San Antonio, an MA in Journalism from the University of Missouri, and worked as a magazine reporter and editor in Houston and Dallas before pursuing a career consulting in public relations and marketing communications. After managing web content and public relations for a nonprofit in Boston, he retired and moved with Joyce to Naples in 2012 to the farm, where they enjoy forest and field, rescue dogs and cat, and a small pond back in the woods that is maintained by a stubbornly resilient colony of beavers. He is passionate about preserving the tranquility and beauty of nature and supporting ways to manage the impact of commercialization on lakes, fields, and woods.

Julia Stokes, Bridgton, Maine.  Julia received her undergraduate degree from the University of Michigan and a Master’s Degree in Nonprofit Management from the University of San Francisco. After working for nonprofits in Boston for many years, she moved to Santa Monica, CA where she worked in leadership training. She currently works as a systems administrator supporting software and accounting implementations. Having fallen in love with the water growing up near the shores of Lake Michigan, and more recently having spent years running on the Santa Monica beaches, she’s profoundly grateful to call her home on Long Lake in Bridgton her year-round residence. 

Justin Ward, Bridgton, Maine. Justin grew up near Middlebury, Vermont and then attended Bates College, where he received a BA in psychology. After teaching for a few years in Massachusetts, he and his wife Pam opened Bridgton Books in 1993 and have been busy operating the store to this day. Justin raised a family of three kids in this area and did his share of coaching while they were young. He also served on The Landmark Human Resources Board of directors for many years in Bridgton. He enjoys playing hockey, playing the fiddle, hiking, swimming, mountain biking, skiing, and of course, reading.

Martina Witts, Naples, Maine. Martina grew up in the Merrimack Valley in Massachusetts. She graduated from the University of Massachusetts Lowell with a BA in History and received an MBA from Rivier University. She and her husband Bruce lived in Charlotte, NC and Poughkeepsie, NY before returning to Massachusetts, where they lived and raised their son and daughter in Tyngsborough, MA for 25 years. For 15 years Martina worked in the Career Center at the University of Massachusetts Lowell, most recently as the Director. In addition to her career, Martina has volunteered as a Girl Scout Leader, Cub Scout Leader, elected School Committee member and board member of two educational non-profits. Currently, she is the President of the Trickey Pond Environmental Protection Association and volunteers on local municipal committees. Martina’s connection to the Sebago Lake Region began as a young child with annual camping trips to the area and continued as she and Bruce raised their children to love and appreciate the natural beauty of the lake region, their “go to” vacation spot. Buying a house on Trickey Pond in 2004 and making Naples, ME their permanent home in 2018 is a dream come true.

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