We’re committed to improving our ecosystems, quality of life, and communities for the better.
Our passion and commitment to the integration of innovative science and engineering drive us to exceed on behalf of every client.
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We're proud to be sponsoring and participating in conferences, webinars, community gatherings, and symposiums. Our blog is the go-to hub for all the event dates, detailed information, and ways to get involved. Join us in making this winter season one to remember! February 11 - 12: Delaware Estuary Science and Environmental Summit The 2025 Delaware Estuary Science & Environmental Summit, held at the Chase Center on the Riverfront in Wilmington, DE, is themed "Bridging the Gap Between Science, Policy, and Action." The goal of this biennial Summit is to bring together scientists, managers, restoration practitioners, and educators from different sectors to share the latest scientific information, network, and make ecological linkages that promote a better understanding of the watershed as a whole. Participants can take part in a variety of education sessions on three different tracks: Living Resources, Sediment Material Management, and Climate Change. The program includes 70+ presentations on topics including Monitoring PFAS in the Delaware River; Sea Level Rise Scenario Visualization for Adaptation and Mitigation Practices; and Implementing Climate Resilience through Community Building. Princeton Hydro is exhibiting at the conference. We hope you'll stop by! Get more info and register. February 20 - 21: Eighth Annual New Jersey Watershed Conference The Watershed Institute's Watershed Conference offers sessions that increase knowledge and skills, encourage discussions between stakeholders, and foster collaboration on specific issues and potential solutions. This year's conference, themed “Resiliency through Restoration," will focus on collaborative strategies to build climate-resilient communities by restoring degraded watersheds through nature-based and engineered solutions, addressing both current and future water-related challenges such as flooding, harmful algal blooms, and drought. Princeton Hydro, a proud sponsor of the conference, is exhibiting and leading two presentations:
The Princeton Hydro team is thrilled to kick-off 2025 with a multitude of events. We're proud to be sponsoring and participating in conferences, webinars, community gatherings, and symposiums. Our blog is the go-to hub for all the event dates, detailed information, and ways to get involved. Join us in making this winter season one to remember!
The 2025 Delaware Estuary Science & Environmental Summit, held at the Chase Center on the Riverfront in Wilmington, DE, is themed "Bridging the Gap Between Science, Policy, and Action." The goal of this biennial Summit is to bring together scientists, managers, restoration practitioners, and educators from different sectors to share the latest scientific information, network, and make ecological linkages that promote a better understanding of the watershed as a whole. Participants can take part in a variety of education sessions on three different tracks: Living Resources, Sediment Material Management, and Climate Change. The program includes 70+ presentations on topics including Monitoring PFAS in the Delaware River; Sea Level Rise Scenario Visualization for Adaptation and Mitigation Practices; and Implementing Climate Resilience through Community Building. Princeton Hydro is exhibiting at the conference. We hope you'll stop by!
The 32nd FEMA National Dam Safety Program Technical Seminar (NDSPTS) will take place at the National Disaster & Emergency Management University in Emmitsburg, Maryland. This annual event brings together over 300 dam safety professionals to explore emerging challenges, advancements, and collaborative strategies essential for maintaining our nation’s dam infrastructure. This year's NDSPTS introduces a dynamic new format, designed to enhance learning and collaboration among dam safety professionals, that blends training, workshops, and traditional presentations, offering a comprehensive approach to addressing dam safety challenges and innovations. Princeton Hydro President Geoffrey M. Goll, PE, is presenting on "Streamlining the NEPA Process and Focusing on Adaptive Management for Dam Removal," offering insights into improving project efficiency and resilience.
Get more info and register.
Pennsylvania Lake Management Society (PALMS) is hosting its 35th Annual Conference at the Wyndham Garden in State College, PA. Participants will experience a collection of professional presentations, workshops and panel discussions focused on the latest discoveries in and approaches to invasive species, monitoring, best management practices, pollutants and harmful algal blooms. A proud sponsor, Princeton Hydro is exhibiting at the conference, and Senior Technical Director of Ecological Services Dr. Fred Lubnow is participating in an expert panel discussion and Q&A session as well as leading a presentation on "An Additional Strategy that Should be Considered in the Monitoring and Management of Lakes and Reservoirs."
Presented by the Delaware Riverkeeper Network, the 2025 Watershed Congress is taking place at Alvernia University in Reading, PA. The Watershed Congress has evolved since 1998 to advance the best available information and techniques for protecting and restoring watersheds. The focus on networking across disciplines means that the Watershed Congress melds science, policy, and practical applications into one program. As a result, the annual Watershed Congress is a highly anticipated event for people interested in understanding, protecting, and restoring their local streams.
If you missed our Facebook Live AMA presentation, “Fright or Fiction: Debunking the Myths about Bats, Spiders & Snakes,” don’t worry — the recording is now available for on-demand viewing! This fascinating session featuring Michael McGraw, CSE, QAWB, ACE, Senior Project Manager and Wildlife Biologist at Princeton Hydro sheds light on the common myths surrounding these creatures, the roots of our fears, and the incredible ecological benefits they provide. Plus, he offers insights on how we can help protect them instead of fearing them. By learning more about these creatures, we can contribute to a healthier, more balanced ecosystem — and who knows, we might even overcome a fear or two along the way!
Princeton Hydro President and Founding Principal Geoffrey M. Goll, P.E., lent his expertise to a “Daylighting Streams: Design & Engineering” webinar hosted by The Watershed Institute. The event delved into uncovering and restoring buried watercourses, featuring insights from Geoffrey and other leading experts, including Vince Sortman, Senior Fluvial Geomorphologist at Biohabitats, and Warren T. Byrd, Jr., FASLA, Founding Partner of Nelson Byrd Woltz Landscape Architects. Topics covered included hazard mitigation, maintenance, and the role of community involvement in successful daylighting projects. Highlighting the dual benefits of enhancing urban infrastructure and natural ecosystems, the webinar offered valuable strategies for tackling these complex projects. If you missed the session, visit our blog for a comprehensive recap and to learn more about Daylighting Streams.
The Audubon Christmas Bird Count (CBC) is the nation’s longest-running community science bird project, fueling critical conservation efforts for over 12 decades. Each year, from December 14 to January 5, birders and nature enthusiasts participate in this hemispheric program, contributing valuable data about bird populations.
The CBC began in 1900 as a new holiday tradition proposed by U.S. ornithologist Frank Chapman, replacing the "side hunt" — a practice of hunting birds with no limit — with a more constructive and conservation-minded activity: counting birds to support science and protection efforts. That year, 27 observers counted 18,500 birds in 25 locations across the U.S. and Canada. Since then, the CBC has grown to include over 2,800 count circles across the Western Hemisphere, involving thousands of volunteers who tally birds within a designated 7.5 to 15-mile radius.
This data forms one of only two large pools of information that ornithologists and conservation biologists rely on to track bird population trends. For example, a 2019 study revealed a loss of nearly three billion North American birds since 1970. The data also informs how birds respond to climate change, guiding conservation efforts in an ever-changing environment.
The Audubon Christmas Bird Count is more than a science initiative; it’s a cherished tradition that brings communities together in support of bird conservation. Members of the Princeton Hydro team have embraced this opportunity to contribute valuable data while fostering a deeper connection with local ecosystems and creating a meaningful impact for birds and their habitats.
Princeton Hydro Vice President Mark Gallagher, an avid birder who has observed approximately 800 bird species in his lifetime, has been involved in the CBC since 1978 bringing both expertise and enthusiasm to the effort. He leads the Southern Bucks County (PA) Bird Count group, organizing and participating in the annual count event as well as coordinating with sub-area managers to compile and submit CBC data to the National Audubon Society.
The Southern Bucks County circle covers the Neshaminy Creek and Upper Delaware River, Philadelphia, Pennsylvania site, which was one of the original 25 locations surveyed during the first Christmas Bird Count in 1900. This long-standing tradition adds a unique historical significance to the data collected in this region and provides fascinating insights into long-term trends in bird populations.
This year, a Princeton Hydro team also participated in the Trenton Marshes Annual Christmas Bird Count, covering areas around Duck Island and the Delaware River. The group of six, spotted 50 species, including Orange-crowned Warbler, Fox Sparrow, Black-capped Chickadee, Rusty Blackbird, and several Bald Eagles.
One highlight of the day was observing a flock of Ruby-crowned and Golden-crowned Kinglets dancing and singing in an evergreen patch near the Trenton Sewage Utility Plant. The group also had an unforgettable experience when they imitated the descending, quavering whistle of an Eastern Screech Owl and received an answering call from the trees above—a thrilling moment that underscored the magic of connecting with wildlife.
The CBC offers an opportunity for everyone, regardless of age or experience, to contribute to this vital community science initiative. Birders must arrange participation with a local compiler and can choose to count in the field or from the comfort of their home by watching feeders. To see which count circles are nearest to you, visit Audubon’s CBC map.
In a press release, Dr. Brooke Bateman, senior director of climate and community science for Audubon, said: “The Audubon Christmas Bird Count is a great tradition and opportunity for everyone to be a part of more than 12 decades of community science in the name of protecting birds. Your Christmas Bird Count observations help scientists discover trends about bird species that inform conservation.”
In addition to the Christmas Bird Count, the National Audubon Society, Cornell Lab of Ornithology and Birds Canada host the Great Backyard Bird Count, which takes place February 14 - 17. This count is an accessible way to contribute to bird conservation by observing birds from any location for as little as 15 minutes.
To access CBC count results, review 100 years of data, and receive information about all of Audubon’s community science programs, click here.
Princeton Hydro is proud to contribute to the Audubon Christmas Bird Count and similar initiatives that combine passion for conservation with meaningful action. By participating in these community science programs, we not only support vital research but also foster connections with the ecosystems we strive to protect. Whether through bird counts, habitat restoration projects, or innovative environmental solutions, we remain committed to making a positive impact for birds, wildlife, and the natural world. Together, efforts like these ensure a brighter, more sustainable future for generations to come.
As 2024 comes to a close, we’re proud to reflect on a year filled with meaningful achievements and memorable milestones. From groundbreaking projects to personal accomplishments, these successes highlight the dedication and innovation of our team and the strength of our partnerships. None of this would have been possible without the unwavering support of our clients, collaborators, and staff.
This year marked major milestones in the restoration of three Delaware River tributaries. The removal of the 129-year-old Paulina Lake Dam on the Paulins Kill River reconnected an additional 7.6 miles of river habitat, adding to the 10 miles restored following the removal of Columbia Lake Dam. This project, led by The Nature Conservancy and designed by Princeton Hydro, represents a significant step forward in revitalizing New Jersey’s third-largest tributary to the Delaware River. The removal of Dam #2 on Bushkill Creek completed a five-dam removal effort, making the lower Bushkill Creek free-flowing and reconnecting it to the Delaware River for the first time in over 200 years. This effort enhances water quality, supports the passage of migratory fish, and bolsters freshwater mussel populations, vital to the health of the watershed. In November, work began to remove the Cedar Grove Dam, the first of four dams slated for removal along the Pequest River over the next year. This collaborative effort, led by The Nature Conservancy with training support from Princeton Hydro, will open nearly 10 miles of mainstem river and reconnect 57 miles of tributaries. Collectively, these dam removals celebrate a shared commitment to restoring ecological balance, reconnecting critical habitats, and supporting the biodiversity of the Delaware River Basin.
Through engineering and ecological enhancements, we are revitalizing landscapes across the region. In New Jersey, the 279-acre Miry Run Dam Site 21 in Mercer County Park is being transformed into a vibrant public park that balances nature and community. We also collaborated with the Trenton South Ward Neighborhood Association on a Community Garden and Park Visioning project, assisting them in securing a grant that led to the planting of 500 native plants, enhancing public spaces and creating critical habitat for monarch butterflies. In Pennsylvania, Warrington Township’s Lion’s Pride Park is being converted into a resilient wetland complex with accessible pathways, demonstrating how ecological uplift fosters healthier communities. And, construction is now complete on the Turkey Foot restoration project within the John Heinz National Wildlife Refuge at Tinicum in Philadelphia. The project revitalized 7.5 acres of critical wetland and upland habitats, preserving Pennsylvania’s last freshwater tidal marsh and supporting migratory and threatened and endangered species. In New York, we broke ground on the Spring Creek (North) Ecosystem Restoration Project in Brooklyn and Queens, which aims to restore 43 acres of degraded habitat within Jamaica Bay into a mosaic of low marsh, high marsh, scrub shrub wetland, and maritime upland within a 67-acre footprint. Meanwhile, the addition of the Marsh Master® 2MX-KC-FH to Princeton Hydro’s fleet elevated the ability to combat invasive species like Phragmites australis with minimal ecological disturbance.
Princeton Hydro was recognized as one of New Jersey’s “Top Workplaces of 2024,” a prestigious honor that highlights our commitment to fostering an inspiring and supportive work environment. Two of our project achievements received acclaim: the Musconetcong Island Park project earned both the New Jersey Future Smart Growth Award and the American Planning Association of New Jersey’s 2024 Great Places in New Jersey - Great Public Space Award for transforming an abandoned site into a riparian park. The City of Lambertville’s stormwater management initiatives received the NJDEP “Our Water’s Worth It” Award for advancing flood resilience and water quality. Additionally, the restoration of the historic Roebling Wireworks, home to our Trenton headquarters, earned the New Jersey Historic Preservation Project Award, and our President, Geoffrey Goll, PE, was honored with the “Catalyst for Sustainable Change” Award from Hold High the Torch for advancing STEAM education and environmental stewardship. And just this month, Dr. Fred Lubnow was honored with the NJ-AWRA Peter Homack Award for his outstanding contributions to the multi-disciplinary understanding and management of New Jersey’s water resources. These awards reflect the passion, innovation, and commitment to excellence that define Princeton Hydro.
We partnered with The Nature Conservancy to enhance accessibility and visitor experience at the South Cape May Meadows Preserve, a 200-acre haven of biodiversity that welcomes 90,000 visitors annually. The centerpiece of this collaboration is a new 2,675-foot elevated boardwalk and 480-square-foot viewing platform, designed to open access to previously unreachable areas and go beyond ADA standards to ensure visitors of all abilities can explore the preserve’s diverse landscape. Situated largely within freshwater wetlands, the project required innovative solutions to minimize impact on sensitive habitats. This effort highlights the importance of creating inclusive spaces that both protect and celebrate our natural world.
One of Princeton Hydro’s core offerings is grant writing for our nonprofit and government clients. This year alone, we landed nearly $1 million in grants for our clients for harmful algal bloom monitoring, habitat enhancement, water quality improvements, and planting native plants via the National Fish and Wildlife Foundation's Delaware Watershed Conservation Fund and the Xerces Mid-Atlantic Pollinator Habitat Kit Planting Program.
This year, our talented team reached numerous applaud-worthy milestones, showcasing their dedication to advancing environmental science and sustainability. Amy McNamara became a Certified Professional in Erosion and Sediment Control (CPESC), highlighting her expertise in sustainable site design and regulatory compliance. Marissa Ciocco earned a Professional Engineer (PE) license in Connecticut, building on her existing licensure in Delaware. Chris Mikolajczyk CLM was appointed President-Elect of the Colorado Lake and Reservoir Management Association Board. Jesse Smith organized and implemented Flemington’s first-ever BioBlitz, a community-focused event that fostered a deeper connection to local biodiversity. Erin Bennett became a Notary Public in New Jersey and earned her Green Infrastructure Champions certification. Thomas Hopper achieved the Geographic Information Systems Professional (GISP®) certification, further elevating his contributions to geospatial analysis and restoration efforts. And, Matt Kreines earned his FAA Commercial Drone Pilot license.
We completed our first project in Colorado—a bathymetric assessment of the Fairplay Beach Reservoir, focused on mapping the reservoir’s underwater landscape to support ongoing conservation efforts. We are excited to bring our expertise in water resource management to new regions like Colorado and look forward to future opportunities to contribute to the preservation and enhancement of Colorado’s unique high-altitude aquatic environments. Stay tuned for more updates as we continue to explore new waters and chart new territories.
We made significant strides in advancing lake and watershed health through innovative initiatives. At Virginia’s Smith Mountain Lake, decades of historical data and cutting-edge research were leveraged to identify the drivers of harmful algal blooms and shape sustainable solutions. In New Jersey, a collaboration with the Mercer County Park Commission resulted in comprehensive lake and watershed management plans to address algal blooms and bolster ecological resilience across the park’s aquatic ecosystems. These projects highlight our unwavering commitment to protecting vital freshwater resources and fostering healthier ecosystems for future generations.
This year we welcomed Senior Wildlife Biologist Michael McGraw, CSE, QAWB, ACE, who joined our Regulatory Compliance & Wildlife Surveys team, bringing over 20 years of expertise in ecological assessments and wildlife surveys. Alexandra Garnett became a vital part of our Trenton office as an Administrative Assistant. Civil Engineer Ryan Krueger, PE, joined our Engineering Services team this month, and Eric Libis returned to our team as an Aquatics Specialist over the summer/fall. Kaitlyn Jones, who began as an intern, has now joined our Aquatics team permanently as a Staff Scientist! This summer, we also hosted four interns: Francisco Batz (Landscape Architecture), Jade Gallagher (Communications), Daniel Goll (Engineering), and Rachel Trokenheim (Aquatics).
We connected with industry professionals, communities, and stakeholders through a wide array of events, fostering collaboration, sustainability, and stewardship. In partnership with The Watershed Institute, we delivered impactful workshops, including the inaugural “Watershed Restoration Academy: Healthy Streams 101;” webinar sessions on daylighting streams and the conservation of American shad; and two education sessions at the 7th Annual Watershed Institute Conference. President Geoffrey Goll, PE traveled globally to participate in important river restoration and dam removal conversations, including the “Free Flow 2024 Conference” in The Netherlands, a river connectivity workshop in South Africa, and collaborations with Associação Natureza Portugal, a Portuguese non-profit NGO that works in association with World Wide Fund for Nature in Portugal. We also sponsored and presented at nationally prominent events, including the “NALMS International Symposium” in Lake Tahoe, CA; the “NYSFOLA Conference” in Lake George, NY; the “Harmful Algal Bloom Summit” in Portland, ME; and the “Delaware River Watershed Forum” in Bethlehem, PA, covering topics such as climate change impacts on lake ecology and green infrastructure stormwater management. Locally, we celebrated community and stewardship through events like the “Trenton River Days Fair,” Mercer County’s “Juneteenth Celebration,” and the New Jersey Highlands Council’s 20th anniversary, which highlighted collaborative Lake Hopatcong project successes. We also led two Facebook Live events: “Understanding and Managing Invasive Species in Your Backyard” and “Debunking Myths About Bats, Spiders & Snakes.” Through these efforts we deepened relationships with partners, advanced critical conversations, and inspired meaningful, sustainable change. These are just a few highlights from a truly impactful year!
As we reflect on this year’s achievements, we are deeply grateful for the trust, collaboration, and support of our clients, partners, and community. Your belief in our mission fuels our ability to innovate, restore, and protect. Here’s to building on this momentum in 2025 and continuing to make a positive impact together.
When we made the decision to move Princeton Hydro’s headquarters to Trenton in April of 2022, we knew we were becoming part of something special. It wasn’t just about finding a new office—it was about joining a community with a rich history, vibrant culture, and a shared dedication to environmental and social progress. From the very beginning, we felt a sense of belonging and purpose here. Trenton isn’t just where we work; it’s where we’ve had the chance to grow, learn, and give back to a place that inspires us every day.
From its founding by Dr. Fred Lubnow, original and former President, Dr. Stephen J. Souza (retired), and us, our firm has always been guided by a philosophy of stewardship, sustainability, and community partnership. While our core work focuses on ecological and engineering consulting, we firmly believe that our responsibility extends beyond the projects we undertake, focusing on fostering genuine partnerships and creating lasting impacts in the communities we serve. In Trenton, we've been especially fortunate to experience the powerful connection that comes from working alongside local organizations and residents.
Since relocating our headquarters to Trenton, we’ve been honored to open our doors and our hearts to a wide range of local organizations and causes. By hosting events for nonprofit groups like Greater Trenton, Outdoor Equity Alliance, NJ Society of Women Environmental Professionals, Boys and Girls Club of Mercer County, Revolutionary Trenton, Princeton-Mercer Regional Chamber, and many others, we’ve had the privilege of supporting efforts that protect both the environment and the cultural heritage of Trenton. These events are more than gatherings; they are moments that strengthen community bonds and foster a sense of connection that is vital to the city’s growth and vibrancy.
In that spirit, we are proud to contribute to local causes that directly uplift Trenton’s residents. Whether organizing coat drives for the Children’s Home Society of NJ, running food drives for Arm & Arm, or sponsoring local events like Juneteenth, the Black Farmers Market, Jersey Fresh Jam, and the Summer Splash Bash, we are constantly inspired by the resilience and commitment of the people in this city. These initiatives allow us to give back to a community that has given us so much, while also fostering environmental awareness and celebrating the rich cultural and communal life that makes Trenton so special.
Our focus on STEAM (Science, Technology, Engineering, Arts, and Math) education is another way we aim to make a lasting impact. We are honored to support programs like the Hold High the Torch’s Eco Innovators for Youth STEAM Leaders, the Outdoor Equity Alliance’s Careers in Conservation, and the NJ Department of Environmental Protection’s Youth Inclusion Initiative, which are essential for nurturing the next generation of environmental leaders. By helping students engage with real-world environmental challenges, we hope to inspire future conservationists and scientists who will carry forward the work we’ve begun.
In addition to our community outreach, we have been directly involved in significant environmental projects throughout Trenton. Our partnership with Trenton Water Works on the water quality sampling at Pennington Reservoir has been crucial in ensuring safe and reliable water for the city. We collaborated with the Trenton South Ward Neighborhood Association on a Community Garden and Park Visioning project, assisting them in securing a grant that resulted in the planting of 500 native plants, enhancing public spaces and creating a habitat for monarch butterflies. One of our most impactful efforts has been the Abbott Marshlands wetland restoration project at John A. Roebling Park, in collaboration with the Mercer County Park Commission, to eradicate invasive species and bring back the native landscape for park goers to enjoy. These projects demonstrate our commitment to restoring greater Trenton’s natural habitats, creating a sustainable future for its ecosystems, and leaving a positive, tangible mark on the city’s landscape.
As we reflect on our work in the Trenton region, we are truly humbled by the recognition we’ve received. In 2023, Princeton Hydro was honored with the New Good Neighbor Award by the NJBIA, a testament to our commitment to being more than just a business operating in Trenton, but a dedicated partner in its success. Additionally, our office itself was recognized with a Historic Preservation Award from Preservation New Jersey, underscoring the importance we place on respecting and preserving the rich history of the City while looking toward the future.
At Princeton Hydro, we are committed to being not just a business in Trenton, but a dedicated partner in its success. We take pride in the contributions we’ve made thus far, yet we recognize that our journey is far from complete. With the community's support and collaboration, we believe we can continue to make a meaningful, lasting impact as we work together toward a sustainable future – one that enriches our environment and enhances the quality of life for everyone.
We are thrilled to announce that Dr. Fred Lubnow, Senior Technical Director of Ecological Services at Princeton Hydro, has been honored with the prestigious Peter Homack Award by the American Water Resources Association, New Jersey Section (NJ-AWRA). The award was presented during NJ-AWRA’s annual meeting in December, recognizing Fred’s outstanding contributions to the multi-disciplinary understanding and management of New Jersey’s water resources.
The Peter Homack Award, established in 1987, commemorates the late Peter Homack, a former NJ-AWRA president and distinguished New Jersey engineer. The award celebrates individuals who exemplify Homack’s legacy of advancing water resource management through collaboration and innovation.
Fred’s selection for this honor is a testament to his decades-long dedication to the restoration and protection of water resources. Since Princeton Hydro’s founding in 1998, Fred has played a pivotal role in the study and restoration of hundreds of lakes across New Jersey and the Mid-Atlantic region. His work at Lake Hopatcong, in particular, stands as a shining example of his commitment. For over 30 years, Fred has partnered with Lake Hopatcong stakeholders to implement comprehensive restoration plans, develop best management practices, and achieve milestones toward the lake’s water quality goals.
Beyond his work at Princeton Hydro, Fred has enriched the field of water resource management through education and stewardship. He teaches watershed management at Delaware Valley University and freshwater ecology at Villanova University, inspiring the next generation of environmental stewards. Fred has contributed to NJ-ARWA over the last five years through a variety of presentations on harmful algal blooms (HABs) and watershed planning. Additionally, he has held leadership roles in the North American Lake Management Society (NALMS) and the Pennsylvania Lake Management Society. Selected as a member of the New Jersey Department of Environmental Protection’s HAB Expert Team, Fred has been instrumental in shaping the HAB advisory and alert systems we rely on today. His contributions have advanced our understanding of the factors driving cyanobacterial blooms in New Jersey’s lakes, offering valuable insights to improve the prediction, prevention, and management of these blooms.
Although Fred could not attend the award ceremony in person, he joined virtually via Zoom as his colleague Michael Hartshorne, Princeton Hydro’s Director of Aquatics, accepted the award on his behalf. During Michael's acceptance speech, he said:
“I’ve worked with Fred since I started at Princeton Hydro in 2006. He’s a humble leader, a dedicated mentor, and an overall fantastic person. Fred’s enthusiasm for lake ecology, particularly algae, is truly infectious. It’s a rare skill to make others genuinely excited about such a niche topic, but Fred has a remarkable way of doing just that. Fred truly embodies the spirit of the Peter Homack Award, and it’s an honor to receive this on his behalf.”
Fred’s passion, expertise, and collaborative spirit have left an indelible mark on water resource management in New Jersey and beyond. Princeton Hydro congratulates him on this well-deserved recognition and looks forward to his continued contributions to the field.
Did you know that some of the animals we fear the most are actually among nature’s most invaluable helpers? Bats, spiders, and snakes are often misunderstood, leading to fear and, sadly, even harm to these essential species. These misunderstood creatures might send shivers down your spine, but without them, our ecosystems would be in serious trouble!
If you missed our recent Facebook Live AMA presentation, "Fright or Fiction: Debunking the Myths about Bats, Spiders & Snakes," don’t worry — the recording is now available for on-demand viewing! This fascinating session featuring Michael McGraw, CSE, QAWB, ACE, Senior Project Manager and Wildlife Biologist at Princeton Hydro sheds light on the common myths surrounding these creatures, the roots of our fears, and the incredible ecological benefits they provide. Plus, he offers insights on how we can help protect them instead of fearing them.
Our fear of bats, spiders, and snakes often stems from cultural myths, sensationalized media portrayals, and fear of the unknown. Misunderstanding these species highlights how a lack of education can shape our perceptions. With knowledge and curiosity, we can move beyond fear, find beauty in their unique roles, and appreciate the essential contributions they make to our world. For instance:
By addressing the roots of these fears, such as unfamiliar behaviors or misunderstood survival tactics, Princeton Hydro's webinar aims to replace myths with facts.
Bats, spiders, and snakes are ecological powerhouses! Snakes control rodent populations, reducing disease and property damage. Spiders eat disease-carrying insects, helping to maintain healthy ecosystems. Bats pollinate crops, disperse seeds, and consume agricultural pests, supporting food security and biodiversity.
The webinar also discusses practical ways to coexist with and support these animals, including:
Are you ready to see these misunderstood creatures in a new light? Click below to watch the full webinar on-demand to gain eye-opening insights into their behaviors, benefits, and how we can better coexist with them.
Embracing knowledge over fear not only empowers us to protect these vital species but also opens the door to seeing the beauty and purpose in the creatures we once misunderstood. We also encourage you to share this blog and the webinar with your community. Together, we can help protect our natural environments for future generations.
We’re thrilled to announce that Princeton Hydro’s Senior Project Manager of Aquatics and Certified Lake Manager, Chris L. Mikolajczyk, has been appointed as President-Elect of the Colorado Lake and Reservoir Management Association’s (CLRMA) 2025 Board of Directors. This appointment highlights Chris’s dedication to lake management and his commitment to advancing aquatic resource conservation efforts.
CLRMA, which was founded in 1996, brings together citizens, scientists, and professionals with a shared passion for protecting Colorado’s lakes and reservoirs. The annual CLRMA board election took place on October 22, 2024 during the organization’s fall conference. This event, a cornerstone for water resource professionals and conservation advocates throughout Colorado, fosters connections and knowledge-sharing on aquatic ecosystem health, water quality, and the legal and financial aspects of lake management.
Chris will serve as President-Elect for a one-year term, after which he will become President. In this role, Chris will work closely with CLRMA members to plan and host educational events, including spring and fall conferences, and summer gatherings, such as lake appreciation days and family-friendly workshops. With his extensive experience in lake management, as well as a term as the President of the North American Lake Management Society (NALMS), Chris is well-prepared to contribute to CLRMA’s mission of protecting and enhancing Colorado’s lakes and reservoirs.
“It’s an honor to join the CLRMA board and have the opportunity to contribute to the sustainability of Colorado’s valuable water resources,” said Chris. “I look forward to collaborating with the CLRMA team to advance our shared mission of fostering resilient, healthy lakes and reservoirs.”
Chris joined Princeton Hydro in 1999 and has spent the past 25 years managing and restoring lakes and aquatic ecosystems. Over his career, he has led numerous lake management and water quality projects across the U.S. and has played an active role in professional organizations such as NALMS. Chris’s experience includes lake diagnostics, watershed management planning, stormwater quality modeling, and leading various aquatic restoration initiatives. He brings a wealth of knowledge to CLRMA and is excited to expand his involvement in Colorado’s lake conservation community.
Alongside Chris, the newly elected 2025 CLRMA Board members include:
Additional CLRMA Board members who will continue their roles include Suresh Niraula (Past President), Meghan Chantler (Secretary), Claire Farmer (Director), and James Eklund (West Slope Director).
Together, the CLRMA board provides a forum for sharing expertise and solutions on issues facing Colorado’s lakes, from water quality and ecosystem resilience to watershed protection.
Princeton Hydro is proud to support Chris in his work with CLRMA as we continue our mission of delivering sustainable, science-based solutions for water resource management and lake restoration across the country. This mission has recently extended to Colorado, where we completed our first project—a bathymetric assessment of Fairplay Beach Reservoir in partnership with the Town of Fairplay. This project involved mapping the reservoir’s underwater landscape to support its conservation, adding critical data for future restoration and management efforts in this beautiful high-altitude ecosystem.
As we look ahead, Princeton Hydro is excited to bring our expertise to Colorado’s unique aquatic environments and partner with local communities and conservation organizations to protect the state’s natural resources. Stay tuned for more updates as we continue exploring new waters and contributing to sustainable resource management across the region.
For more information about CLRMA and its work in protecting Colorado’s lakes and reservoirs, visit their website here.
Princeton Hydro is excited to announce that the Musconetcong Island Park Project received the New Jersey Future 2024 Smart Growth Award. This project, led by the Musconetcong Watershed Association (MWA), transformed a crumbling, long-abandoned laboratory into a vibrant, accessible riparian park space that provides opportunities for fishing, wading, paddling, and viewing wildlife in Bethlehem Township, NJ.
The site, which once housed a two-story concrete block laboratory used by the Asbury Graphite Mill, had become a hazard after decades of disuse. Located on a quarter-acre island in the Musconetcong River, the building was not only structurally unsound but also in the floodway of the River, posing ongoing risks to the surrounding environment. Through a collaborative, multi-year effort, the abandoned building was demolished, the area was restored, and the island was transformed into a welcoming, accessible space for public enjoyment and recreation.
The image below shows the old stairway, laboratory building, and island space with a white outline depicting the project area:
The Musconetcong Island Park Project represents a successful collaboration among numerous partners. Led by MWA, the project involved National Fish and Wildlife Foundation, the Township of Bethlehem, Harrington Construction, and Princeton Hydro.
Princeton Hydro provided engineering and environmental consulting services for the project. Our scientists and engineers completed all necessary permitting, designed both the conceptual and final restoration plans, and oversaw construction throughout the project.
Funding for the project was secured through three primary sources: New Jersey Green Acres Program, National Park Foundation, and U.S. Fish and Wildlife Service’s Delaware Watershed Conservation Fund. These grants were instrumental in facilitating the transformation of an industrial relic into a thriving park space, balancing the preservation of the river's natural resources with the creation of an accessible community destination.
The two-story concrete block building that once stood on Musconetcong Island was originally the Asbury Graphite Mill laboratory, constructed between 1925 and 1940. It was built on the foundation of a woolen factory that had been destroyed by fire in 1881. The laboratory was used for testing graphite, an inert and non-toxic mineral primarily used for lubrication and other industrial applications. Graphite refining began in Asbury in 1895, when Harry M. Riddle purchased the existing mills and converted them for this specialized purpose.
By the early 1980s, the laboratory was abandoned due to frequent flooding and a lack of modern plumbing. Despite its industrial history, the building had become a safety and environmental concern due to its floodway location and deteriorating condition. In 1999, the laboratory building was donated to the Musconetcong Watershed Association, who then initiated efforts to restore the site and transform it into a valuable public resource.
Today, the island has been transformed into a place where residents and visitors can enjoy the Musconetcong River. With improved access, new stairways, and interpretive signage sharing the history of the area, Musconetcong Island Park is a prime example of how thoughtful design can blend environmental restoration with community-focused development.
“We are honored to have contributed to the transformation of Musconetcong Island Park and proud to see this project recognized with a New Jersey Future Smart Growth Award for its role in enhancing the Musconetcong River Watershed. It reflects our commitment to sustainable design and the power of collaboration in creating lasting, positive impacts for both the environment and the community. It’s truly a win-win — removing an obstruction from the floodway while providing public access to the river,” said Geoffrey M. Goll PE, President of Princeton Hydro.
Since 2002, the New Jersey Future Smart Growth Awards have celebrated the best examples of sustainable planning and development across the state. The Musconetcong Island Park Project exemplifies these values by enhancing public access to nature, improving resilience to flooding, and fostering sustainable recreation opportunities in the heart of Bethlehem Township. The project showcases the importance of balancing environmental restoration with community needs, creating a space where people can connect with nature while preserving and protecting it for future generations.
The 2024 New Jersey Future Smart Growth Awards recognize six outstanding projects that exemplify innovative and sustainable development. This year’s award ceremony and celebration took place yesterday at the New Brunswick Performing Arts Center.
Click here to learn more about the awards and to view the full list of 2024 Smart Growth Award recipients.
MWA is an independent, nonprofit organization dedicated to protecting and improving the quality of the natural and cultural resources of the Musconetcong River and its Watershed. Members of the organization are part of a network of individuals, families, and companies that care about the Musconetcong River and its watershed, and are dedicated to improving the watershed resources through public education and awareness programs, river water quality monitoring, promotion of sustainable land management practices, and community involvement. Click here to learn more.
Princeton Hydro has been working with MWA in the areas of river restoration, dam removal, and engineering consulting since 2003. Explore how the partnership between Princeton Hydro and the MWA led to the historic return of American shad to the Musconetcong River for the first time in over 250 years, revitalizing the ecosystem—read the full story here!
Invasive species may be impacting your backyard without you even realizing it. These non-native plants, animals, and organisms can harm ecosystems, the economy, and even human health when they take root in areas where they don’t naturally belong.
If you missed our recent Facebook Live presentation on this important topic, don’t worry — the recording is now available for on-demand viewing! In the webinar, experts from the Princeton Hydro team - Michael McGraw, CSE, QAWB, ACE, Senior Project Manager and Senior Wildlife Biologist of Regulatory Compliance & Wildlife Surveys, and Jesse Smith, Aquatic Ecologist - provide practical tips on how to identify and manage invasive species, helping to keep your backyard and local environment thriving.
Invasive species are organisms that are not native to an area but thrive and spread aggressively, often causing harm to native ecosystems. They compete for resources, disrupt habitats, and can introduce diseases, leading to the decline of native species. Unlike exotic species, which may be non-native but do not necessarily cause harm, invasive species tend to simplify ecosystems by outcompeting native plants and animals.
A well-known example is the Emerald Ash Borer, a beetle responsible for the widespread death of ash trees across North America. Another, Phragmites australis, also known as Common Reed, is a highly invasive grass that dominates wetlands, lowering biodiversity and displacing native species. The spread of these and other invasive species can be exacerbated by human activity and even by climate change.
In their natural environment, invasive species have predators and environmental checks that keep their populations under control. However, when introduced to new habitats, they lack these natural controls, allowing them to spread rapidly. Invasive species can alter ecosystems by:
Freshwater ecosystems and wetlands are particularly vulnerable because it’s hard to contain the spread of invasives in these environments. Once established, invasive species are difficult to remove and can cause long-term damage.
The good news is that there are steps we can take to help prevent and manage invasive species in our communities. Here’s what you can do:
Educate and Share: Education is one of the most powerful tools in fighting invasives. Learn about which plants are native and beneficial to your specific region. Talk with your neighbors, community organizations, and local land managers about the importance of managing invasive species. And consider sharing educational resources like this blog and our on-demand webinar.
Reduce the Spread: Prevention is the best strategy. By planting native species, removing invasives, and avoiding the release of invasive species into the environment, you can help stop the spread.
Monitor Your Property: Routinely checking your property for invasive species is key to early detection. Reach out to local watershed organizations to get involved in monitoring efforts. Get involved with organizations focused on monitoring and protecting local lakes and waterways. In Virginia, the Smith Mountain Lake Association has launched “Dock Watch,” a community science program where volunteers collect water samples from select docks to monitor harmful algal blooms, track cyanobacteria levels, and report invasive aquatic species.
Document and Report: Learn to identify common invasive species in your area and report them to local authorities, such as your county extension office or an invasive species management team. In New Jersey, the Invasive Species Strike Team works to control the spread of these harmful organisms.
Here are some methods to consider when removing Invasive Species:
To learn more about how invasive species may be impacting your backyard and what you can do to address them, we invite you to watch our webinar. Learn practical tips for identifying and managing invasives to help protect your property and local ecosystems. Click below to watch the webinar now:
We encourage you to share this blog and the webinar with your community. Together, we can help stop the spread of invasive species and protect our natural environments for future generations.
New Jersey Department of Environmental Protection (NJDEP) Commissioner Shawn M. LaTourette presented the City of Lambertville with the NJDEP "Our Water’s Worth It" award. The award ceremony, held at a stormwater infrastructure improvement project site behind the Lambertville Firehouse, celebrated the Lambertville's commitment to improving stormwater management, addressing flooding, protecting local waterbodies, increasing storm resilience, and mitigating the impacts of climate change.
In a press release announcing the award, Commissioner LaTourette said, “Modernization of stormwater management strategies and infrastructure is critical to mitigating flooding that is severely impacting communities across New Jersey. My DEP colleagues and I applaud Lambertville for paving the way for others to follow in managing stormwater more effectively.”
The "Our Water’s Worth It" campaign, launched by NJDEP earlier this year, aims to raise awareness about the importance of protecting New Jersey’s water resources. The campaign highlights municipalities, water systems, and others who go above and beyond in water resource management and infrastructure improvements. Lambertville’s forward-thinking approach to stormwater management, particularly in meeting permitting requirements ahead of schedule, earned the city this well-deserved recognition.
At Princeton Hydro, we are proud to support the City of Lambertville in its stormwater management initiatives. Our team has been working closely with Lambertville to design projects that not only mitigate flooding but also enhance the surrounding natural environment.
During the award ceremony, Senior Project Manager and Professional Engineer, Sean Walsh, PE, said: “We are honored to be here today alongside NJDEP and the City of Lambertville celebrating Lambertville's remarkable achievement in receiving the 'Our Water's Worth It' trophy. It's particularly meaningful that this recognition comes during Climate Week, underscoring the importance of local action in addressing global environmental challenges.”
Earlier this year, the Princeton Hydro team completed a comprehensive Stormwater Utility Feasibility Study, which provided critical insights into Lambertville’s current stormwater management capacity and forecasted future needs.
Among the ongoing projects, Princeton Hydro is evaluating solutions for capturing runoff and reducing flooding in Lambertville's Music Mountain area, a critical greenspace in the heart of the city. This steep, wooded hillside, home to popular nature trails, serves as a cherished spot for after-school exploration, dog walking, and outdoor recreation. Music Mountain also plays a critical role in the city’s stormwater management system, acting as a natural buffer to protect lower-lying areas from flash flooding caused by runoff from the residential neighborhoods above. However, storm sewer outfalls discharging into the hillside have created deep erosion gullies, and during heavy rain events, the runoff has flooded the Fire Department. In collaboration with the City and the Fire Department, Princeton Hydro is designing a comprehensive solution that includes both the installation of a piped stormwater system and enlarging the inlet at the base of the mountain to better capture surface water runoff.
Additionally, on the Closson Farm property, Princeton Hydro is designing a riparian restoration project to manage the effects of increasing storm intensity. Funded by the National Fish and Wildlife Foundation, this project will result in 4.6 acres of restored floodplain, 300 trees planted, creation of wildlife habitat, measurable sediment and nutrient reduction, reduced stormwater runoff, community engagement, and new walking paths for recreation.
“Together with Lambertville, we are taking essential steps to enhance the city’s infrastructure and safeguard the community against future flooding. Our partnership reflects a shared commitment to protecting the environment and promoting resilience,” said Princeton Hydro’s Director of Restoration & Resilience, Christiana Pollack, CFM, GISP.
By embracing innovative stormwater solutions, Lambertville is not only enhancing its infrastructure but also setting a benchmark for resilience and environmental stewardship across New Jersey. This recognition reflects the city’s commitment to proactive flood management and sustainability, serving as an inspiration for other communities.
Princeton Hydro is honored to partner with the City of Lambertville on these important efforts. We extend our heartfelt congratulations on this well-deserved recognition and are excited to continue our collaboration on future projects that will further strengthen the city's resilience and protect its vibrant neighborhoods.
To learn more about NJDEP’s "Our Water’s Worth It" campaign, watch the video below:
New Jersey’s water-related infrastructure is a complex system, constantly facing the challenges posed by stormwater runoff and working to properly manage it. Stormwater management isn’t just about handling rainfall; it’s a critical aspect of improving water quality and mitigating flood risks. In New Jersey, where urbanization and rainfall patterns intersect, managing stormwater is more than just a priority; it’s a necessity. To learn more about stormwater management solutions, check out our blog: "In the Eye of the Storm: Exploring A Stormwater Utility in New Jersey."
The New Jersey Department of Environmental Protection (NJDEP) launched its fourth annual Youth Inclusion Initiative. The program hopes to enrich young participants, who may not have the opportunity to explore open spaces in their community, with hands-on environmental field experience under the tutelage of NJDEP professionals and mentors.
This year’s participants consisted of youths from several different community-based organizations. These partners include Neighborhood Improvement Association (Trenton), Rutgers-Camden, The Work Group (Camden), Ranch Hope (Salem), Boys and Girls Club of Garfield, Groundwork Elizabeth, Ironbound Community Corporation (Newark), and United Community Corporation (Newark).
Over six weeks, eight community organizations guided participants as they engaged with professionals to explore careers in water and air monitoring, natural resource management, wildlife conservation, and other related fields. Additionally, a new component of the program introduces "community project days," where participants actively contribute to environmental projects within their neighborhoods. These projects enable participants to make a positive impact on their communities, fostering a sense of civic pride and environmental stewardship. Activities may include park cleanups, installing educational exhibits, and establishing community gardens.
The program has been expanded to include a full day of rehearsal, with a focus on public speaking abilities and mock interviews, regarded as integral components of professional development. Throughout the summer, participants will engage in resume and cover letter writing sessions and attend presentations led by guest speakers.
In addition to fostering personal and professional growth, participants devoted a substantial amount of their time to honing technical skills through hands-on activities. These activities included simulating environmental impact investigations, collecting macroinvertebrates from a stream to gauge water quality, interacting with fish at a state trout hatchery, and designing a park in collaboration with Green Acres staff. To further enrich their understanding, the program also incorporates a visit to the regional headquarters of the U.S. Environmental Protection Agency.
As part of this initiative for the third year in a row, the NJDEP's Division of Land Resource Protection Mitigation Unit invited Princeton Hydro and Mercer County Park Commission to host three sessions at John A. Roebling Park. Under the guidance of Princeton Hydro mentors Mark Gallagher, Dana Patterson Grear, and Mike McGraw, the team educated young participants about invasive species and the importance of restoring native landscapes. The initiative exposed attendees to the varied roles of environmental scientists, water resource engineers, geologists, restoration ecologists, wildlife biologist, pesticide applicators, regulatory compliance specialists, and communications professionals, thereby enhancing their understanding of these professions and sparking a fascination for the natural world.
The program began at Tulpehaking Nature Center like in previous years. After representatives from Mercer County Park Commission and Friends of the Abbott Marshlands introduced the site's history, Princeton Hydro discussed career opportunities in conservation and gave a brief overview of ongoing restoration efforts in the park to eliminate the invasive Common Reed (Phragmites australis), and NJDEP representative, Jessica Klein, gave a presentation about her work in wetland mitigation.
Before venturing into the Abbott Marshlands, the northernmost freshwater tidal wetlands along the Delaware River, the Princeton Hydro team conducted a health and safety briefing. They highlighted potential risks and exposures to ensure everyone's awareness. This briefing is a crucial part of prioritizing the safety of all participants in our work.
Shortly after setting out on the road to the site, the students received an additional lesson. Mark directed their attention to a nearby tree where poison ivy - a native plant - had stealthily climbed up the trunk. To their surprise, the young participants had mistaken the trailing vines for branches of the tree. This observation highlighted the remarkable ability of poison ivy to adapt to its surroundings, finding innovative ways to persist and thrive in its environment.
As the second group continued their journey down the path, they encountered a Fowler’s toad. Initially, its slippery texture startled them, but they quickly realized the frog's harmless nature. Through gentle pats on its head, they gained a newfound appreciation for these fascinating creatures, transforming their initial fear into a sense of wonder and respect.
Venturing through the marshland, the young explorers gained insights into wetland delineation. They witnessed the fascinating process of using a hand auger and a Munsell Soil Color Book to identify and understand the unique characteristics of wetland soils. In a delightful exploration of local flora, participants delved into the art of species identification using a specialized field guide. They learned to distinguish invasive plant species from their native counterparts, such as sensitive fern, which they were able to see during a short nature walk on a trail back to the nature center.
In a seemingly unremarkable area of the riverbank, the third group stumbled upon a startling discovery. Amidst the lush vegetation, a highly toxic plant known as poison hemlock flourished. The students were taken aback by its presence in an otherwise ordinary location. They had never encountered such a hazardous plant in their previous studies. The poison hemlock, with its delicate white flowers and feathery leaves, belied its deadly nature. The students were captivated by its beauty, but the instructors cautioned them against touching.
The encounter with poison hemlock and poison ivy served as a valuable lesson for the students. They realized that even in seemingly ordinary places, hidden dangers could lurk. They developed a newfound respect for the power of nature and the importance of exercising caution when exploring unfamiliar environments.
Ending the day, participants from the first group had the privilege of attending a lesson conducted by Wildlife Biologist Mike McGraw. With the assistance of the Nature Center's resident corn snake, Mike introduced the students to the fascinating world of reptiles. Overcoming their initial apprehension towards these slithery creatures, the students discovered that there was much more to snakes than they had previously imagined. Mike dispelled common misconceptions and fears, explaining that snakes are not inherently dangerous creatures but rather play a vital role in maintaining the balance of ecosystems.
The NJDEP Youth Inclusion Initiative began on July 8 and culminated on August 16 with a graduation and NJDEP Career Day where students had the opportunity to meet and discuss career options with various organizations who tabled at the event, including Princeton Hydro.
To learn more about the NJDEP education program, click here. If you’re interested in learning more about Princeton Hydro’s ecological restoration services, click here.
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