Jack Halsey, OLWC Coordinator

Jack Halsey ( joined Oswego Lake Watershed Council in September 2019 as the new Coordinator. Jack grew up in Oregon and began working with watershed councils in 2013 as a Fish Passage Intern with the Johnson Creek Watershed Council. Jack received his Environmental Analysis degree from Pitzer College, with a focus on Environmental Science. He was a seasonal Park Ranger at Tryon Creek State Natural Area for two years, working to improve recreation opportunities, educate visitors, and restore degraded habitat. Jack served as a Confluence AmeriCorps Member from 2018 to 2019 with Johnson Creek Watershed Council as Outreach and Riparian Specialist. In that role, he planned and implemented riparian restoration projects, volunteer events, and environmental education for student groups from under-served communities.

In his role with Oswego Lake Watershed Council, Jack most enjoys managing restoration projects and ensuring access to natural resources for all who live, work, and recreate in the watershed  In his free time, Jack enjoys hiking, going to concerts, and making ceramic art.

Kat Maloney, Community Outreach Specialist

Kat grew up in the San Francisco Bay Area but spent nearly every school break at her grandmother’s home in Oregon. Kat fell in love with volunteering and the power of community outreach while volunteering at the Monterey Bay Aquarium in California, where she learned to use interpretive skills to spark a love of science in guests visiting from underserved communities in Monterey County. After moving to Beaverton in 2016, Kat quickly found opportunities to be a regular volunteer with several non-profit organizations in the Portland Metro area including: Friends of Trees, the Oregon Zoo, Portland Parks and Recreation, and Johnson Creek Watershed Council. Kat has an interest in working towards protecting water quality by providing environmental education and outreach that inspires environmental stewardship and community participation in habitat restoration projects.

Kat graduated with honors from Portland State University with a Bachelor’s degree in Environmental Science, and served a term with Confluence AmeriCorps and the City of Gresham in 2019. While working with the City of Gresham, Kat developed outreach methods to raise awareness about the importance of Gresham’s publicly owned open spaces. Kat is looking forward to developing a relationship with the Lake Oswego community and providing educational outreach on the many benefits that come from maintaining a healthy watershed and urban forest.

In her free time, Kat enjoys volunteering, hiking, camping, fishing, painting, and watching Disney movies. Kat’s parents are both veterinarians, so she adores animals and spends much of her time doting on the three pets she shares her home with (2 cats and a dog!).

Kat can be reached at

Laurent Nickel, Stewardship Technician

Laurent was born and raised in Northwest Portland. He attended Pacific Lutheran University on a music scholarship and graduated in 2008 with degrees in Environmental Studies and English. After working for several counties in Washington State doing water quality monitoring and invasive plant control, he began working for the Lake Oswego Corporation in 2011, where he is still employed full time. In 2019, the OLWC hired him as our Stewardship Technician to help with invasive plant removal. In his spare time, he’s likely out in his boat salmon or steelhead fishing on local rivers, and as a lifelong musician, at night you might find him in one of Portland’s jazz clubs playing his upright bass. 

The Council also partners with neighborhood organizations, businesses, government agencies, landowners and concerned citizens.  Council partners support the Council’s watershed protection mission in the community in a less formal sense.  Partners volunteer at OLWC events, support OLWC project efforts and grant applications, and help strengthen OLWC community connections, as they are able.

For more information on becoming an OLWC member or partner contact us at or call our message phone at 503-479-5560

Council partners include:

Back to the top…

Council Members

  • Stephanie Wagner, Chair

    Stephanie WagnerAfter completing a Masters degree in cell physiology Stephanie Wagner ( worked for 10 years in mosquito genetics and shark physiology research at UCLA. The birth of four children and a move to Oregon in 1976 took her out of the research laboratory and into local schools where she volunteered supporting elementary science education. This experience led to her employment as Education Director for Friends of Tryon Creek State Park where she supervised an education program with over 10,000 participants annually. She is presently working for PSU’s Center for Science Education as the Director of the Masters in Science Teaching program. She also teaches Connect2Science through Nature classes for in-service elementary teachers; giving kindergarten through fifth grade teachers the tools to incorporate outdoor experiences into their science curriculum. Stephanie has served as an active volunteer with the City of Lake Oswego serving as a member of the Parks and Recreation and Natural Resource Advisory Boards.

  • Thomas Bland, Treasurer

    Tom BlandThomas Bland, Treasurer, ( is a Certified Public Accountant. He has extensive experience in financial operations, taxation, board relations, corporate governance, risk management, operational administration, treasury and human resources. He is the Chief Operating Officer for Cascadia Green Building Council, a green building organization headquartered in Portland’s Pearl District. Tom is also president of Sequoia Financial Consulting, PC a Tax and Accounting firm. He has a BS from the University of California and an MS from the University of Arizona. Tom has lived in Lake Oswego for 19 years. He is on the board of directors for Friends of Springbrook Park, the Uplands Neighborhood Association as well as being on the board of the Oswego Lake Watershed Council.

  • Mike Buck, Secretary

    Mike BuckMichael Buck ( is a business person who has lived in Lake Oswego for twenty-eight years. He has served on numerous community task forces and commissions including the Lake Grove Comprehensive Plan, the Lake Grove Village Center Plan, and Advisory Committee for further refinement studies on Boones Ferry Road. He chairs the Friends of Iron Mountain, local neighbors and citizens who actively work to restore native habitat to public park land. The City and his fellow citizens have acknowledged his service to the community through numerous citations including Unsung Hero Award.


  • Rob Amsberry, Stakeholder: City of Lake Oswego

    Rob AmsberryRob Amsberry ( is a Surface Water Management Specialist for the City of Lake Oswego where he has worked for the past 26 years. He designs and manages the construction of capital improvement projects, conducts stormwater reviews of proposed development, performs all tasks related to the management of the City’s floodplains and is managing the City’s efforts to meet DEQ permitting requirements for its Underground Injection Control (UIC) program. Rob has a BS in Civil Engineering Technology from Oregon Institute of Technology and is a Certified Floodplain Manager. His continued education has been focused on stream restoration, applied river morphology and floodplain management. Originally from Pendleton, Rob and his family have resided in North Clackamas County for the past 20 years where he and his wife spend their free time volunteering with a variety of programs including Boy and Girl Scouts, public school activities, local food banks and youth sports.

  • Mary Ratcliff, Stakeholder: Liaison for the Lake Oswego Sustainability Network

    Mary Ratcliff

    Mary Ratcliff ( has a Masters in Computer Science with an expertise in large databases and worked with IBM for 9 years. She has owned a home in Lake Oswego since 2001. Mary volunteers for a number of organizations: she is the co-chair of the Lake Oswego Sustainability Advisory Board; a steering committee member for the Lake Oswego Sustainability Network, and is the Liaison for the Network’s Water Action Team of which the Watershed Council is an important stakeholder. Other organizations where Mary volunteers are the Audubon Society of Portland where she is the co-chair for the Wild Arts Festival Book Fair, leads occasional bird outings and works in the Nature Store, and OPB where she has helped with website development and membership drive coordinator/facilitator.

  • Mark Rosenkranz, Stakeholder: Lake Oswego Corporation

    Mark RosenkranzMark Rosenkranz (, a Limnologist with over 20 years of experience on Oregon lakes is a founding member of the Watershed Council. He is the Past President of the Oregon Lakes Association and a member of the North American Lake Management Society and the International Society of Limnology. He has been the Staff Scientist and Project Manager for the Lake Oswego Corporation since 2012 and is responsible for all aspects of water quality monitoring and treatment. Mark’s focus is reducing the concentration of phosphorus in Oswego Lake that drives summer algae and cyanobacteria blooms. This effort involves in-lake treatment and watershed improvements that reduce high nutrient runoff into the lake. This effort is becoming more difficult as the effects of climate change lead to more intense storms and increased watershed erosion. The Watershed Council is a strategic partner in educating residents and advocating for watershed restoration projects.

  • Dwight Sangrey, Stake Holder: Mountain Park Homeowners Association

    Dwight SangreyDwight Sangrey has lived in Oregon since 1988 and moved to Mountain Park, where he is a member of the Board of Directors and President, in 2002. He and Karla have grown children and five grandchildren who all live in other parts of the country. Dwight is an engineer who spent 30 years in higher education as a teacher, research director and academic administrator. He also has worked in engineering design and management and in leadership of several technology companies. He has been very active in international volunteer work, especially since retirement, and remains involved as a consultant.

    Dwight and Karla came to Oregon from upstate New York when he became President of the Oregon Graduate Institute of Science and Technology. Following his retirement from the university he was CEO of Santa Fe Technologies Inc. and a Principal with Golder Associates, an international environmental and technology firm. He has been an active contributor to economic development programs, primarily focused on technology companies, and has been a member or director of several major university/industry/government organizations including the Ben Franklin Partnership Program, the South Africa Project for the Ford Foundation and the Oregon Council on Knowledge and Economic Development (OCKED). Participation as a Trustee on public and private governance boards has included service to Pacific University, Saturday Academy, the Portland Opera and other volunteer groups. He has also served as a Director or Chairman on six public and private corporate boards.

  • Sara Asby, Stake Holder: Mountain Park Homeowners Association

    Sarah AsbySarah Asby has lived in Mt. Park since 1974. Her house is located on one of the green spaces of the community which parallels Springbrook creek where it flows through Mt. Park. Sarah has a Biology degree from Grinnell College in Grinnell Iowa and a Master’s degree in Botany from the University of Iowa. She has taught high school Biology both in Iowa and in Oregon. She has served on several advisory boards of the city of Lake Oswego – the energy board back in the late 70s, 8 years on the Natural Resource Advisory board and 5 years on the Sustainability Advisory board. She recently was a member of the Ad Hoc Tree code committee for the city. Sarah enjoys the many outdoor recreational opportunities of the area such as hiking and skiing. She is currently active in a local Arabian horse club, serving as a delegate to the national convention and is in the process of getting certified in equine therapy, working with people with special needs interacting with horses.

  • Barbara Fisher, Stake Holder: Friends of Hallinan Heights Woods

    Barbara Fisher

    Barbara Fisher together with her husband, Jim Fisher, coordinate Friends of Hallinan Heights Woods which includes Hallinan Woods, Freepons Park Woods and Cornell Corridor of Trees. She also serves on the Hallinan Heights Neighborhood Association Board.

    With a degree in art and a masters in teaching, Barbara has worked as an elementary, junior high, and K-8 art teacher.  When the Art Literacy Program began in Lake Oswego Schools she volunteered as a school coordinator and was the first all district coordinator for 10 years.  She initiated adding Our Lady of the Lake School and the junior high schools to the program and served on the City Arts Commission for 5 years including chairing the Commission and the Permanent Art Collection Committee.

    Jim and Barbara were recognized in 2017 as Unsung Heroes by the City for their 14 years of restoration work in Hallinan Woods.

  • Jim Fisher, Stake Holder: Friends of Hallinan Heights Woods

    Jim Fisher
    Jim Fisher is a Certified Engineering Geologist with a BS from Villanova University and a MS from Caltech. After serving 2 years in the military, he worked on the Tran-Alaskan Pipe Project for 6 years, focusing on erosion control and quality assurance.

    Working in California as a consulting geologist, Jim conducted landslide, earthquake, and groundwater investigations.  In 2002 he returned to Lake Oswego where he had attended junior and senior high schools.  Jim worked for Water Environmental Services in Clackamas County as soil scientist and supervisor.

    Together with his wife, Barbara, he serves as Coordinator of Friends of Hallinan Heights Woods, working to restore the natural plant diversity of three city-owned natural areas. He and Barbara enjoy hiking and bird watching in Oregon’s diverse landscapes.

Council Partners

The Council also partners with neighborhood organizations, businesses, government agencies, landowners and concerned citizens.  Council partners support the Council’s watershed protection mission in the community in a less formal sense.  Partners volunteer at OLWC events, support OLWC project efforts and grant applications, and help strengthen OLWC community connections, as they are able.

For more information on becoming an OLWC member or partner contact us at or call our message phone at 503-479-5560

Council partners include:

Back to the top…