Meet Our Staff

Blue Water Baltimore staff are passionate and committed to bringing our mission to life every single day. 

Director Staff

Jenn Aiosa, Executive Director

Jenn Aiosa is a long-time member of Maryland’s environmental community, having worked on science and policy issues for several organizations.

Jenn previously worked as the Director of Conservation Programs at for the Chesapeake Conservancy and Director of Policy and Planning Research for the Maryland Department of Planning. Jenn also worked for the Environmental Defense Fund and as the Senior Scientist of the Chesapeake Bay Foundation (Maryland office). She has also worked for the University of Maryland Cooperative Extension Service on a multi-state water quality program, and for the Maryland Department of Natural Resources on Maryland’s Coastal Bays National Estuary Program.

In her free time, Jenn enjoys volunteering at Patterson Park, cycling, and gardening.

Jill Cecil, Director of Finance and Administration

Jill supports and oversees management of finances and budgeting, human resources, and operations. With more than 20 years of experience, Jill has a solid background in both for- and non-profit finances.

Blue Water Baltimore Staff

Michel Anderson, Senior Manager of Ecoliteracy and Engagement

As the Senior Manager of Ecoliteracy & Engagement, Michel develops and facilitates experiential education activities to help Baltimore residents, institutional staff, and students understand the connection between our streets and streams. He holds a B.A. in Visual Art and Photography from the University of Maryland, Baltimore County and a M.Ed. in Sustainability and Nature-based Education from Antioch University.

Before joining Blue Water Baltimore, Michel worked as the Ecoliteracy & Sustainability Coordinator for the Waldorf School of Baltimore where he developed original nature-based educational programming and managed a variety of sustainability initiatives.

Darin Crew, Senior Manager of Forestry and Restoration

Darin leads our Nursery, Youthworks Program, and Urban Forestry planting and maintenance programs.

Before joining Blue Water Baltimore, Darin worked at one of Blue Water Baltimore’s legacy organizations (Herring Run Watershed) after serving as a fellow for the Chesapeake Bay Program and pulling seine nets for the Maryland Department of Natural Resources.

Zoe Gensheimer, Community Forestry Coordinator

Zoe leads community tree plantings and maintenance. She organizes our free tree giveaway program and assists with ecoliteracy and educational activities.

She grew up in Baltimore City and plans to stay here for a long time, working with friends, family, and local communities to return it to a forest.

Jessie Hillman, Senior Manager of Stormwater Program

Jessie manages stormwater projects in collaboration with a range of community groups and congregations. She also represents Blue Water Baltimore in the a cross-sector collaborative called the Baltimore Environmental Equity Partnership.

She joined the Blue Water Baltimore team in 2015 with extensive experience in community outreach and non-profit administration. Outside of work, Jessie enjoys living aboard sailboat her in the Inner Harbor.

Sarah Holter, Development and Engagement Coordinator/ Waterkeeper Project Assistant

Sarah Holter assists the Development Manager and Executive Director with fundraising, event planning, and office administration. Sarah also assists the Waterkeeper team in the field as a Project Assistant, collecting and transporting water quality samples.

Francine Housier, Director of Human Resources/Chief of Staff

Francine Housier manages Blue Water Baltimore’s human resource functions, including HR compliance, recruitment and on-boarding, employee relations, staff development, payroll, and benefits.

She previously worked in human resources and operations at The Nature Conservancy’s global headquarters in Arlington, Virginia. After arriving in Baltimore in 2009, she began consulting with area non-profit organizations about their human resource needs and issues.

Rob Jenkins, Nursery Manager

With more than 23 years of experience in Maryland’s horticulture industry, Rob Jenkins oversees the daily operations of our Herring Run Nursery. He primarily oversees the production and retail aspects of the nursery.

While working on his master’s degree, Rob interned with Blue Water Baltimore’s water quality monitoring program and the Maryland Department of the Environment. He soon joined us full-time as our Nursery Manager.

Barbara Johnson, Water Quality Manager

As Water Quality Scientist, Barbara Johnson provides support for the ambient water quality monitoring program under the Baltimore Harbor Waterkeeper. Barbara also runs our Outfall Screening Blitz program and our Pollution Reporting 101 trainings and conducts pollution investigations when problems are reported by community members.

Before joining Blue Water Baltimore, Barbara interned with our water quality monitoring program and earned a B.A. in Environmental Sustainability and Human Ecology from the University of Baltimore.

Mary Lewis, Nursery Assistant Manager

With more than eight years of experience, Mary Lewis is responsible for the development of nursery outreach and interactive programs at our Herring Run Nursery.

John Marra, Ecoliteracy and Restoration Specialist

John manages our storm drain art program and leads many of our ecoliteracy programs and green infrastructure projects.

As an Eagle Scout since 1999, Americorps member, and a founding member of the Baltimore Rock Opera Society, John Marra strongly believes in the importance of volunteerism, community involvement and do-it-yourself ethics.

Jeff Missouri, Administrative and Facilities Coordinator

Jeff provides administrative and facilities support at Blue Water Baltimore. Jeff manages building maintenance, information technology, mail services, and customer service.

Jeff has many years of experience in real estate management, contract management, event planning, and logistics in campus and hospital settings. In his free time, Jeffrey is a mentor who supports young teens in Baltimore through Project Raise.

Leanna Powell, Director of Development

Leanna directs the fundraising team and loves introducing people to the superheroes of Blue Water Baltimore.

Leanna grew up along the waterways of southern Maryland but has spent more than a decade in Baltimore wears her Inner Harbor skyline tattoo with pride. She enjoys running and biking along City waterways, and teaches wood carving in her spare time.

Taylor Smith-Hams, Outreach and Advocacy Specialist

Corbin Sulton, Implementation Senior Coordinator

Corbin implements our landscape and stormwater restoration projects. He also supervises and mentors our field crew in their daily work. Corbin is a certified professional in erosion and sediment control and is proficient in using heavy machinery and a variety of hand tools.

Alice Volpitta, Lead Water Quality Scientist

As our lead scientist, Alice manages our ambient water quality monitoring program under the Baltimore Harbor Waterkeeper. She also assists with managing our pollution reporting hotline and enforcement efforts.

Alice previously managed the Maryland Department of Natural Resources’ Non-Tidal Network Program and carrying out monitoring surveys across the state.

Robert Walker, Implementation Coordinator

Robert ensures thorough implementation, completion, and accuracy of inspection reports for our restoration projects. He is also responsible for planting street trees and the construction and landscaping of environmental stormwater projects and rain gardens within the Baltimore region.

Prior to joining Blue Water Baltimore, Robert worked with the Center for Urban Families and is an Army veteran.

Peter Weitzmann, Database Specialist

Peter is determined to use data and technology to promote solutions to environmental and social issues in Baltimore. Peter works to support our programmatic and development goals by overseeing the collection, organization, and utilization of data.

In his free time, Peter plays guitar with his band.

Marissa Zuckerman, Communications Specialist

Marissa is passionate about all things marketing, communications, and public relations; Marissa manages our website, newsletter, blog, social media, and news/media coverage.

In her free time, Marissa plays rugby, hunts for fossils, and volunteers through Habitat for Humanity.