Year in Review: Top 10 Successes of 2020

Princeton Hydro has grown from a small, four-person firm operating out of a living room to a 60+ person business with six office locations in the Northeast and a satellite office in Colorado. Over the last two decades, we’ve restored many miles of rivers, improved water quality in hundreds of ponds and lakes, and enhanced thousands of acres of ecosystems in the Northeast.

This year, we are feeling extra grateful for those who have supported our business and helped us further our mission during these difficult times. As we reflect on 2020 and set our sights on 2021, we have many successes to celebrate.  Here’s a look at our top 10 successes of the year:

 

1. RESTORED FISH PASSAGE ON SIX WATERWAYS

Our team installed one fish ladder and oversaw the removal of five dams in four states. In New York, in partnership with Riverkeeper, Princeton Hydro oversaw the removal of two dams on tributaries to the Hudson River: Strooks Felt Dam on the Quassaick Creek in Newburgh and Barrier #1 on Furnace Brook in Cortlandt. The dams were the first barriers for fish movement upstream from the Hudson River. In Connecticut, the Slocomb Dam along Roaring Brook in South Glastonbury was removed, restoring American eel and trout passage. In Massachusetts, the Horseshoe Mill Pond Dam in Wareham was removed, opening over 3 miles of fish habitat on the Weweantic River, Buzzards Bay’s largest freshwater river. Here, migratory fish can now swim unimpeded from Buzzards Bay to lay their eggs in fresh water upstream for the first time in 200 years. In New Jersey, we led the removal of Warren Hills Dam in Washington, NJ and partnered with the American Littoral Society to install a fish ladder at the Old Mill Pond Dam in Spring Lake Heights, NJ, which allows migratory fish to scale the dam and access spawning grounds that had been blocked-off for over 100 years.

 


 2. LED THE LARGEST APPLICATION OF PHOSLOCK IN THE NORTHEAST ON NEW JERSEY’S LARGEST LAKE

We implemented a variety of measures that helped Lake Hopatcong, New Jersey’s largest lake, mitigate harmful algal blooms (HABs). We applied a clay-based nutrient inactivating technology called Phoslock, which was the largest Phoslock treatment to occur in the Northeastern US. This treatment along with HAB prevention measures like the installation of biochar bags, nanobubble aeration systems, and floating wetland islands proved successful in mitigating HABs and improving overall water quality in 2020. And to top it all off, The Washington Post was awarded a Pulitzer Prize for its explanatory reporting on a novel climate change story featuring Lake Hopatcong and our lake management work.

 


3.  DESIGNED AND CONSTRUCTED WETLAND AND SHORELINE RESTORATION PROJECTS

We completed a shoreline restoration project at The Dunes at Shoal Harbor, a coastal residential community along the Jersey Shore that was severely impacted by Hurricane Sandy. In Linden’s Tremley Point neighborhood – another New Jersey community ravaged by Hurricane Sandy – we completed a green infrastructure and floodplain restoration project, the first restoration project to ever be implemented on NJDEP Blue Acres-acquired property. We transformed a densely developed, flood-prone, former industrial site in Bloomfield into a thriving public park with 4.2 acres of wetlands. Each of these three projects helped to restore valuable ecological functions and increase storm resiliency.

 


4. LAUNCHED A COMMUNITY SCIENCE MONITORING PROJECT FOR THE SCHUYLKILL RIVER

On World Habitat Day, the nonprofit, Schuylkill River Greenways, in partnership with Berks Nature, Bartram’s Garden, The Schuylkill Center for Environmental Education, Stroud Water Research Center, and Princeton Hydro, kicked-off a Water Quality Monitoring Project for the Schuylkill River. This project aims to document the current ecological health of the river and engage a diverse set of river users and residents. As part of the campaign, the team is recruiting “Community Scientists” to conduct Visual Monitoring Assessments. Additionally, the stakeholder team is implementing water quality sampling and monitoring throughout 2021 at locations along the main stem of the Schuylkill River.

 


5. WELCOMED EIGHT NEW FULL-TIME TEAM MEMBERS

This year, we added eight new full-time staff members and one intern with expertise and qualifications in a variety of fields, all of whom have a passion for water resource management and environmental stewardship. In March, we were thrilled to welcome Dr. Laura Craig to our team as the new Director of Natural Resources. She is an Aquatic Ecologist who has overseen 25 dam removals, co-founded the NJ Dam Removal Partnership, and has 10+ years of experience in river conservation and climate adaptation. Go here to learn about the career opportunities currently available with us.

 


6. COMPLETED A MAJOR ECOLOGICAL STUDY OF THE HUDSON RIVER

Photo from USACE

The USACE Commanding General and 55th U.S. Army Chief of Engineers signed the Hudson River Habitat Restoration Ecosystem Restoration study, designating it as complete and making it eligible for congressional authorization. Princeton Hydro led the Integrated Feasibility Study and Environmental Assessment, which recommends three ecosystem restoration projects at sites along the river including Henry Hudson Park, Schodack Island Park, and Moodna Creek. The Hudson River Estuary is a significant habitat for fish, plants, and other wildlife, and this milestone marks progress toward the river’s return to a dynamic and self-regulating ecosystem. If constructed, these projects would restore almost 24 football-sized fields of wetlands in total.

 


7. EARNED THREE PRESTIGIOUS AWARDS

The New Jersey Section of the American Water Resources Association honored Princeton Hydro with the “Excellence in Water Resources: Ecological Restoration Award” for the Linden Blue Acres Floodplain Restoration & Green Infrastructure project. This restored the ecological and floodplain function on former residential properties acquired by the NJDEP Blue Acres Program for the first time. The American Littoral Society and Princeton Hydro received the “Land Ethics Best Large-Scale Project Award” from Bowman’s Hill Wildflower Preserve for the work they did to restore the health and water quality of the Metedeconk River flowing through Ocean County Park in Lakewood, NJ. The Iowa Court and South Green Living Shoreline Project in Little Egg Harbor and Tuckerton, NJ, for which Princeton Hydro lead the sediment sampling/testing and hydrographic survey, received the “2020 Best Green Project Award” from Engineering News-Record.

 


8. GAVE OVER 20 PRESENTATIONS ON WATERSHED MANAGEMENT & RESILIENCY MEASURES

During the Hudson River Estuary Program’s conference, Christiana Pollack, GISP, CFM presented on managing invasive Phragmites and restoring wetland habitats. And, at the Consortium for Climate Risk in the Urban Northeast, Christiana presented on a flood mitigation analysis project in a flood-prone Philadelphia community. As part of The American Sustainable Business Council’s “Clean Water is Good for Business” campaign, Marketing & Communications Manager, Dana Patterson, led a webinar, titled “Making the Business Case on Clean Water Issues to the Media.” At the 2020 Delaware Wetlands Conference, Senior Project Manager, Michael Rehman, presented a wetland restoration project that illustrates how a degraded urban area can be successfully rehabilitated. And, for a New York State Federation of Lake Associations webinar series, Senior Aquatic Ecologist, Chris Mikolajczyk, CLM, presented on a unique lake management initiative. And, our Director of Aquatics, Dr. Fred Lubnow, joined Rep. Debbie Mucarsel-Powell & other experts to discuss Harmful Algal Blooms at a virtual #ProtectCleanWater Town Hall hosted by the National Wildlife Federation Action Fund.

 


9. CELEBRATED A VARIETY OF STAFF ACHIEVEMENTS

Our staff our repeatedly striving for personal growth and continue to amaze us. North American Lake Management Society chose Chris L. Mikolajczyk, CLM, Senior Aquatic Ecologist as the next President of the Board of Directors. Senior Ecologist, Michael Rehman, PWS, and Fluvial Geomorphologist, Paul Woodworth, became Certified Ecological Restoration Practitioners through the Society for Ecological Restoration. Emily Bjorhus and Robert George earned their Professional Wetland Scientist certification through the Society of Wetland Scientists program. In January, our Marketing & Communications Manager, Dana Patterson, received the Society of American Military Engineers New Jersey Post’s “Young Member Award” for her efforts in maintaining and advancing the objectives of the organization (pictured above). A national science journal published Environmental Scientist, Brittany Smith’s, graduate research study, which assessed “The Ecogeomorphic Evolution of Louisiana’s Wax Lake Delta.” Cory Speroff passed his Landscape Architecture exams and Andrew Simko earned his Professional Engineering license. And, Dr. Clay Emerson won our Earth Day Photo Contest with his incredible close-up of an Eastern Fence Lizard.

 


10. WE STAYED UNIFIED AND CONNECTED

2020 was a particularly challenging year, but the Princeton Hydro family stood together. With offices spread across the Northeast and collaboration between offices on a daily basis, we were unknowingly prepared for the shift to remote work during an unexpected global pandemic. But, it took more than just working laptops and VPN connections to keep us going. Because of our staff’s motivation and dedication to serving our clients, we were able to not only keep our firm open, but we continued to grow our geographic and service reach.

 


Thank you for supporting Princeton Hydro and sharing our stories. We truly appreciate each and every one of our clients, partners, and friends. Cheers to a fruitful 2021 and beyond!

UPDATE: Hudson River Habitat Restoration Study Completed & Chief’s Report Signed

Photo from USACE

As part of the multi-faceted effort to restore the vital Hudson River ecosystem, the USACE New York District launched the Hudson River Habitat RestorationPrinceton Hydro led the Hudson River Habitat Restoration Integrated Feasibility Study and Environmental Assessment for USACE. For this project, we established and evaluated baseline conditions through data collection and analysis; developed restoration objectives and opportunities; prepared an Environmental Assessment; and designed conceptual restoration plans for eight sites.

This week, Lt. Gen. Scott A. Spellmon, USACE Commanding General and 55th U.S. Army Chief of Engineers, signed the Hudson River Habitat Restoration Ecosystem Restoration Chief’s Report, which represents the completion of the study and makes it eligible for congressional authorization.

As stated in the USACE-issued news release, “The Chief’s Report recommends three individual ecosystem restoration projects including Henry Hudson Park, Schodack Island Park, and Moodna Creek within the 125-mile study area from the Federal Lock and Dam at Troy, NY to the Governor Mario M. Cuomo Bridge. These projects would restore a total of approximately 22.8 acres of tidal wetlands, 8.5 acres of side-channel and wetland complex, and 1,760 linear feet of living shoreline with 0.6 acres of tidal wetlands. The plan would also reconnect 7.8 miles of tributary habitat to the Hudson River through the removal of 3 barriers along Moodna Creek.”

“The signing of this Chief’s Report is a significant milestone for the HRHR Project,” said Col. Matthew Luzzatto, USACE New York District Commander. “This has truly been a team effort and I want to thank our non-federal sponsors, New York State Department of Environmental Conservation and New York State Department of State, and all of our engineers, scientists, and partners at the local, state and federal level for their unwavering support.”

Read the full press release here. And, for more background information on the Feasibility Study and proposed restoration work, check out our original blog post:

Feasibility Study Identifies Key Opportunities for Hudson River Habitat Restoration

Client Spotlight: Musconetcong Watershed Association

In this photo, Princeton Hydro team member gathers data on the Hughesville Dam removal, using GPS to check the elevation of the constructed riffle on the beautiful Musconetcong River.

Welcome to the latest edition of our Client Spotlight Blog Series! Each spotlight provides an inside look at our collaboration, teamwork, and accomplishments with a specific client. We value our client relationships and pride ourselves on forming strong ties with organizations that share our values of creating a better future for people and our planet.

Meet the Musconetcong Watershed Association

The Musconetcong Watershed Association (MWA) is an independent, non-profit organization dedicated to protecting and improving the quality of the Musconetcong River and its watershed, including its natural and cultural resources. 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.

Princeton Hydro has been working with MWA in the areas of river restoration, dam removal, and engineering consulting since 2003. To develop this Client Spotlight, we collaborated with MWA’s Executive Director Cindy Joerger and Communications Coordinator Karen Doerfer:

Q: What makes MWA unique?

A: As a watershed association, we focus on a specific place. This includes the Musconetcong River, a National Wild and Scenic River, as well as the area’s cultural, historical, recreational, and natural resources. We take a watershed focus, seeking to monitor the river and upstream areas to ensure it maintains good water quality.

Q: What does MWA value?

A: MWA values community. Our membership is mostly grassroots, including residents, riverfront landowners, farmers, and local businesses. We value the long-term community of people who have helped form the organization, improve the river, and protect the scenic and historic resources that make our watershed unique.

Q: How long has MWA been working with Princeton Hydro?

Dam removal project partners and community members pose with Sally Jewell at the Hughesville Dam removal event on Sept. 8, 2016. Photo Credit: USFWS.

Project partners pose with Sally Jewell at the Hughesville Dam removal event in 2016. Photo Credit: USFWS.

A: Princeton Hydro has helped MWA with dam removal projects since the very first one, the Gruendyke Mill Dam, which was an obsolete dam on the border of Hackettstown and Mount Olive. Since then, Princeton Hydro has helped with four other dam removal projects and is currently assisting in the removal and restoration of the Beatty’s Mill Dam in Hackettstown, providing engineering plans and project management support.

The dam removals in the lower Musconetcong River have created a free-flowing passage to the Delaware River, and the removal of the Hughesville Dam welcomed the return of American shad less than a year after its removal.

Q: What types of services have Princeton Hydro provided to your organization?

A: Princeton Hydro has provided MWA with dam removal services on the Musconetcong River, most notably, the removal of Hughesville Dam, which brought Secretary of the Interior, Sally Jewell, out for its notching. Princeton Hydro has also helped us with the engineering and design for the Musconetcong Island Park Project, which involves the demolition of a building in a Historic District and the replacement of new, safer stairs.

We value Princeton Hydro’s expertise in environmental permitting, hydrology, and fisheries, as we have utilized this expertise to review development proposals and conduct fish surveys.

Q: Do you have a favorite or most memorable project we’ve worked on together?

A: The Hughesville Dam removal saw many successes and a few challenges we had to overcome as a team. After the initial removal and restoration, we worked together on another streambank restoration project to further stabilize the streambank near the dam removal site. This dam removal restored over 5 miles of free-flowing river to the Delaware River and will help lay the groundwork for the Warren Glen Dam removal, which is the largest dam on the Musconetcong River.

Hughesville Dam Removal on the Musconetcong River

Bringing fish back to native spawning grounds always makes us feel good! After Superstorm Sandy, millions of dollars were spent to remove dams from coastal waters and since then, species like American Shad, Eastern Brook Trout, and River Herring are making a comeback in our fresh water bodies. We had the pleasure of working on two of the projects mentioned: the removal of the Hughesville Dam on the Musconetcong River (video below) and Wreck Pond in Spring Lake, NJ. Full story: http://bit.ly/2SFtaEb

Posted by Princeton Hydro on Monday, December 10, 2018

 

Q: What are some exciting things your organization is working on right now?

Photo from Princeton Hydro led volunteer clean-up effort on the Musconetcong River in 2018. The team picked-up garbage along the road and riverbank, and pulled trash from the riverbed.

Photo from a Princeton Hydro-led volunteer cleanup effort on the Musconetcong River in 2018.

A: MWA is still working to restore the Asbury Mill, which we plan to use as an educational and eco-tourism hub for the community, as well as a much-needed office space for our growing staff.

We’ve also received some exciting new grants that will help us continue to involve the community in efforts to protect and improve water quality. Our “Push Back the Lawn” campaign will allow us to reach out to small landowners and educate them on the importance of riparian buffers.

This year has also brought some challenges for our organization, but we are excited to be picking up our River Cleanup again this fall. Normally, we conduct a watershed-wide cleanup in April, but due to COVID-19, we had to push it back. However, families and small groups are glad to be able to get out and give back by picking up trash that has collected with increasing staycations and small trips.

Q: What drives you to want to go to work every day?

A: Working for such a small organization, it is easier and more gratifying to see the impact it’s making. Our staff gets to see a lot of projects from start to finish, so it’s rewarding to be able to have your stamp on something you watched grow from its inception to conclusion.

Q: How can Princeton Hydro support you/your organization in the future?

A: In the upper watershed, we are hoping that Princeton Hydro, in concert with others, can continue to help guide improvements to the water quality of Lake Hopatcong. The lake acts as our headwaters and is the largest in New Jersey. Last year, it suffered a serious issue with Harmful Algal Blooms.

We are also looking forward to the Beatty’s Mill Dam removal project, where we will remove a remnant dam and reduce streambank erosion. We hope this will roll into another similar project at Newburgh, which should improve water quality and fish habitat and decrease flooding severity in the Hackettstown area.

Delaware River Watershed Forum participants tour dam removal sites along the Musconetcong River.

Delaware River Watershed Forum participants tour dam removal sites along the Musconetcong River in 2019.

Click below to read the previous edition of our Client Spotlight blog series, which features the Lake Hopatcong Foundation:

Client Spotlight: Lake Hopatcong Foundation

Community Science on the Schuylkill River

The nonprofit Schuylkill River Greenways, in partnership with Berks Nature, Bartram’s Garden, The Schuylkill Center for Environmental Education, Stroud Water Research Center, and Princeton Hydro, is kicking off a Water Quality Monitoring Project for the Schuylkill River on World Habitat Day, Monday, October 5, 2020. This project, focused on the main stem of the river from Berks Nature in Reading to Bartram’s Garden in southwest Philadelphia, is aimed to document the current ecological status and health of the river and seeks to engage and educate a diverse set of river users and residents.

“An important aspect of our mission is to connect communities to the Schuylkill River through recreational and educational activities,” said Tim Fenchel, Deputy Director of Schuylkill River Greenways. “To fully achieve the river’s potential, we must help the public understand the current health status and what they can do to continue to improve its quality for this generation and generations to come.”

In order to monitor the presence and/or distribution of litter along the Schuylkill River, the team is launching a campaign to recruit “Community Scientists” to conduct 5-minute Visual Monitoring Assessments. Using their mobile device, these volunteers can simply record the trash accumulation or dumping points along a 100-foot section of the Schuylkill River via a user-friendly form accessed via a cell phone: bit.ly/litterform.

“Trash is important to address when talking about the health of a waterway because it’s often the most visually obvious form of pollution. Bacterial and chemical pollution are generally less directly observable, but when we see trash, it instantly informs our impression of a body of water,” said Chloe Wang, River Programs Coordinator at Bartram’s Garden. “And, it can point to larger problems. For example, near Bartram’s Garden, a lot of trash washes into the river from combined sewer overflows, which also introduce harmful bacteria into the water. It will be interesting to see how the presence of trash differs along various stretches of the Schuylkill.”

The Community Scientist visual assessments require no formal training and are meant to be a simple effort that any resident can complete. We’ve developed an assessment survey, which can be accessed and submitted via a smartphone or tablet by opening the link in the phone/tablet’s browser.

“This is an opportunity for anyone with an interest in the Schuylkill River to spend time on the river and provide valuable feedback on the conditions of the river,” said David Bressler, Project Facilitator at Stroud Water Research Center. “Schuylkill River Greenways and its partners in this project are looking for motivated and dependable individuals to help them learn about the Schuylkill River and move in positive directions toward making the river more accessible to the community. Support from volunteers is very important and is greatly appreciated.”

The goal is to document critical areas of trash accumulation or dumping points in order to guide management efforts to better deal with this pollution. In addition to the multiple-choice questions to rank trash levels and quantities, this platform asks volunteers to submit a photo of the area and collects the GPS location. By utilizing this user-friendly platform, the data collected under this effort will be summarized and visualized by the project team.

“This project is an important study that we can use to connect people back to the river and show that the Schuylkill River is a place to be enjoyed by the entire community surrounding it and beyond,” said Michael Griffith, Education & Watershed Specialist at Berks Nature.

In 1985 the United Nations designated the first Monday of October every year as World Habitat Day. The idea is to reflect on the state of our towns and cities and the basic right of all to adequate shelter and to remind the world of its collective responsibility for the future of the human habitat. By understanding and improving water quality in the Schuylkill River, we are creating a place that enables community members to access public green and open spaces. This effort also supports UN Sustainable Development Goal 11, which aims for resilient, inclusive, safe, diverse cities by 2030.

In addition to the Community Scientist visual assessments, the stakeholder team is conducting water quality sampling and monitoring over the next year at four locations along the main stem of the Schuylkill River. This scientific documentation of critical water quality parameters will be performed by the stakeholder group’s employees and long term volunteers, who are trained in data collection and scientific methods. We will collect data on bacterial concentrations in the river using a combination of 3-M Petrifilm kits and laboratory-based analytical measures. In addition, in-situ temperature, oxygen, pH, and turbidity data will be collected utilizing Mayfly dataloggers.

“Our research shows that residents care about the river, but are not confident whether it is clean or safe to use for recreational activity. So we’ve designed a volunteer survey and scientific water quality assessment to document the ecological health of the Schuylkill River,” said Michael Hartshorne, Aquatic Resources Project Manager at Princeton Hydro. “By studying bacterial inputs and identifying hotspots for trash, we can communicate the status of the river, provide recommendations on areas of improvement, and ultimately, change the current public perception of the river.”

For the water quality monitoring, Princeton Hydro scientists will provide training to the partner nonprofit organizations’ staff and review the methods and protocols to assure the highest level of quality. This long-term data collection effort is slated to begin this month and continue for approximately one year. The results of this assessment will allow us to determine potential hotspots related to nutrient and bacteria inputs and to understand the overall ecological health of the Schuylkill River.

Overall, through this effort, the stakeholder team hopes to connect residents and communities with the Schuylkill River and to encourage engagement with this special resource.

Client Spotlight: Lake Hopatcong Foundation

This month we are launching the first blog in our Client Spotlight Blog Series! Each spotlight will feature one of our important client relationships in order to give you an inside look at our collaboration. We pride ourselves on forming strong ties with organizations that share our values of creating a better future for people and our planet. So we are excited to be able to share snippets of the incredible teamwork we’ve been able to accomplish over the years!

At Princeton Hydro, we value our client relationships, as the collaborative work we are able to complete with organizations like the Lake Hopatcong Foundation (LHF) reaches exponentially further than anything we could complete alone. One of the reasons our organizations have such strong symmetry is that our values align and complement each other.

As their mission states,”Lake Hopatcong Foundation dedicates itself to protecting the lake environment and enhancing the lake experience, bringing together public and private resources to encourage a culture of sustainability and stewardship on and around New Jersey’s largest lake, for this and future generations.” We are so proud to help protect New Jersey’s largest lake with LHF.

We have been working with LHF since its inception in 2012, which is why we are excited to feature them in our first client spotlight blog. We spoke with Jessica Murphy, President/Executive Director of the Foundation, and Donna Macalle-Holly, Grants and Program Director, to give you an insider look at the organization:

Q: What makes the Lake Hopatcong Foundation unique?

A: The Lake Hopatcong Foundation is unique in that our mission spans a wide spectrum of activities. In addition to projects that focus on the lake environment, we also take on initiatives that support education, safety, community-building, recreation, and even arts and culture. The lake is split between two counties and four towns, so bringing the community together for all these things is very important to us, in addition to making sure the lake itself is healthy.

Q: What does the Lake Hopatcong Foundation value?

A: During our strategic planning process, the board and staff developed a list of values that we go back to when operating and making decisions. They are:

  • Collaboration – We operate in a way that brings people together throughout the community.
  • Action – We are committed to our mission, moving quickly to take on projects that have an impact on and around the lake.
  • Sustainability – We are forward-thinking when making decisions, taking future generations into account when considering projects and initiatives.
  • Warmth – We are a friendly face to the community, showing the best of ourselves and bringing out the best in the people of Lake Hopatcong.

Q: How long have you been working with Princeton Hydro?

The Lake Hopatcong Floating Classroom ready for take off!

When we first started the Lake Hopatcong Foundation in 2012, Dr. Fred Lubnow was kind enough to do a water quality presentation as one of our very first events as an organization! In the years since, we’ve worked closely with Princeton Hydro, particularly in a support role as they conduct business with the Lake Hopatcong Commission. The Lake Hopatcong Commission is a state entity created in 2001 through the Lake Hopatcong Protection Act dedicated to protecting the water quality of Lake Hopatcong and to preserve the natural, scenic, historical and recreational resources of the lake. LHF funded Princeton Hydro’s water quality monitoring during the years that the Commission ran out of money

Q: What types of services has Princeton Hydro provided to your organization?

A: In addition to water quality monitoring on the lake, Princeton Hydro has led volunteer training for us in our efforts to prevent the spread of invasive species and to teach local students in our spring field trip program. Dr. Lubnow has also worked alongside us in applying for grants and in providing insight and expertise for other environmental projects at the lake, including helping guide the installation of floating wetland islands, and helping our NJ Lakes Group to work with NJDEP on Harmful Algal Bloom (HAB) policies. He even did a quick fact check on our children’s book, Lake Hopatcong Speaks Out, before we published it!

Q: Do you have a favorite or most memorable project we’ve worked on together?

Princeton Hydro’s Senior Project Manager, Christopher Mikolajczyk, CLM, presenting during a Water Scout training held by the Lake Hopatcong Foundation.

A: The days that Chris Mikolajczyk spent teaching our volunteers about how to find and remove water chestnuts from the lake were a lot of fun, particularly because we were kayaking on the lake for it! And, also because the kayak we provided Chris was too small for him, and he had to scrunch in to fit, but he was a trouper and paddled on.

Q: What are some exciting things your organization is working on right now?

A: We are working closely with Princeton Hydro and LHC on a series of projects, funded through NJDEP grants, LHC, LHF, and local governments, that we hope will prevent and mitigate HABs on the lake. Those projects include aeration systems, phosphorus-locking technologies, and stormwater infrastructure upgrades. We’re excited to see how effective each can be. Also, on August 7 at 12:30, Dr. Lubnow will be presenting the Lake Hopatcong water quality monitoring project results at LHF’s “Thirst for Knowledge” lunch-and-learn webinar series, which was created to share information and discuss topics of interest to our lake community. To register for the free webinar, visit lakehopatcongfoundation.org.

Photo by: Colleen Lyons of the Lake Hopatcong Commission

Photo by: Colleen Lyons of the Lake Hopatcong Commission

Q: What drives you to want to go to work every day?

A: All of us at Lake Hopatcong Foundation have a passion for this lake and want to see it protected; we have a love for the community that surrounds it, too. Jessica Murphy grew up on the lake, met her husband here, and now is raising her four children to love the lake, too. Donna Macalle-Holly also met her husband on Lake Hopatcong, lives on the lake, and has worked professionally to take care of it for nearly two decades. Everyone in our office has made memories on Lake Hopatcong and developed friendships with those who live and work here. Those personal connections fuel our passion for what we do.

Q: How can Princeton Hydro support you/your organization in the future?

A: Continue to be the incredible resource you are! We are so fortunate to have the deep knowledge and expertise that Fred and your entire team provide, and we look forward to continuing to work together in the years ahead.

Water Scouts paddling on Lake Hopatcong.


Some recent projects we are/have been working on with LHF include installing biochar bags to help control phosphorus levels and applying Phoslock to help mitigate harmful algal blooms! Because of our history working on Lake Hopatcong, we too have gained a passion for protecting and maintaining this lake. This incredibly important work could not be done without the genuine devotion and dedication from the Lake Hopatcong Foundation. We look forward to continuing great work with this incredible group!

NJDEP Releases Updated Guidance for Harmful Algal Blooms

Last summer, 39 of New Jersey’s lakes were plagued with toxic algae outbreaks, also known as harmful algae blooms or HABs, causing major water quality degradation, beach closures and health advisories. In response, the NJDEP implemented a unified statewide approach to addressing HABs in freshwater recreational waters and sources of drinking water, and protecting the public from risks associated with exposure to cyanobacteria.

Last week, NJDEP announced a new component to its statewide Cyanobacterial HAB Response Strategy: a color-coded health alert index that provides precise recreational use recommendations for impacted waterbodies based on levels of cyanobacteria and/or cyanotoxins present. The index has six tiers – NONE, WATCH, ALERT, ADVISORY, WARNING, and DANGER – each providing recommendations on the specific activities that should or should not be pursued based on water monitoring results.

“Princeton Hydro is proud to be one of the contributing factors in the development of the Updated Guidance for HABs,” said said Dr. Fred Lubnow, Director of Aquatic Resources for Princeton Hydro. “We feel this updated protocol will provide the necessary and objective information for State and local organizations to make informed and rational decisions, based on sound and scientifically-based data, on how to deal with HABs in a recreational setting.

Princeton Hydro and Clean Water Consulting are the technical advisers for the New Jersey Lake Group, who have met a number of times over the last 8 to 9 months to discuss the State’s guidance on dealing with HABs.  In late 2019, on behalf of the New Jersey Lake Group, Princeton Hydro and Clean Water Consulting developed a White Paper providing recommended changes for consideration to NJDEP’s Recreational Response Strategy to HABs.

“I’m proud to say that many of the provided recommendations were integrated into NJDEP’s Updated Guidance for HABs,” explained Dr. Lubnow.

WATCH
(Suspected or confirmed HAB with potential for allergenic and irritative health effects)
This warning will be posted when HAB cell counts exceed 20,000. In this scenario, public beaches remain open, but the index instructs the public to use caution, provides information on the potential less serious health effects, and allows for more informed decision-making.

ALERT
(Confirmed HAB that requires greater observation due to increasing potential for toxin production)
This warning indicates a public bathing beach closure only and is posted when a HAB has been confirmed with cell counts between 40,000 and 80,000 and no known toxins above the public threshold. Beaches remain open (dependent upon local health authority) and monitoring for future toxin production should be increased.

ADVISORY
(Confirmed HAB with moderate risk of adverse health effects and increased potential for toxins above public health thresholds)
Signs will be posted for this warning level when cell counts exceed 80,000 or when toxin levels exceed 3 micrograms per milliliter of microcystins. Public bathing beaches will be closed, but the waterbody will remain accessible to some “secondary contact” activities, like boating.

WARNING and DANGER
(Confirmed HAB with high risk of adverse health effects due to high toxin levels)
and (Confirmed HAB with very high risk of adverse health effects due to high toxin levels)
These tiers are designed to alert the public to the presence of HABs that are producing very high levels of toxins which justify additional caution. In some instances, the entire waterbody may be closed for all public use. New Jersey has experienced approximately 12 “warning level” HAB events over the last 3 years; monitoring has never indicated a “danger level” HAB event.

According to their press release, NJDEP is committed to working with local officials to implement the index and get signage posted at lakes throughout the state as soon as possible.

In order to create the health index, NJDEP scientists carefully reviewed HABs data collected over the last three years by Lake Hopatcong Commission, Lake Hopatcong Foundation, Princeton Hydro, and other sources. The tiered warning system will enable lake communities, residents and visitors to make more individualized decisions about what risks they are willing to take and what activities they feel comfortable engaging in at the various levels of HABs.

In the coming days, the NJDEP’s Harmful Algal Bloom website will be updated to include the new health index and accompanying signage, relevant monitoring data, and other information for each of the impacted bodies of water, as well as an updated HAB Monitoring and Response Strategy. For now, you can read the full press release and additional information here: https://www.nj.gov/dep/newsrel/2020/20_0023.htm.

To learn more about HABs, check out our recent blog:

Identifying, Understanding and Addressing Harmful Algae Blooms

Understanding and Addressing Invasive Species

Photo from: New York State Department of Environmental Conservation, water chestnut bed at Beacon

Spring is officially here! Tulips will soon be emerging from the ground, buds blossoming on trees and, unfortunately, invasive plant species will begin their annual growing cycle. No type of habitat or region of the globe is immune to the threat of invasive species (“invasives”). Invasives create major impacts on ecosystems throughout the world, and freshwater ecosystems and estuaries are especially vulnerable because the establishment of such species in these habitats is difficult to contain and reverse.

This blog provides an introduction to invasive aquatic species, including information that will help you prevent the spread of invasives in the waterways of your community.

Defining Invasive Species

Invasive species can be defined as non-native occurring in an ecosystem that is outside its actual natural or native distributional range. Although the colonization of an ecosystem by non-native species can occur naturally, it is more often a function of human intervention, both deliberate and accidental. For aquatic ecosystems some species have become established as a result of the aquarium trade, fish culture practices and/or transport of plants and animals in the bilge and ballast water of trans-oceanic shipping vessels.

One of the primary reasons invasives are able to thrive, spread rapidly, and outcompete native species is that the environmental checks and predators that control these species in their natural settings are lacking in the ecosystems and habitat in which they become introduced. The subsequent damages they cause occur on many ecological levels including competition for food or habitat (feeding, refuge and/or spawning), direct predation and consumption of native species, introduction of disease or parasites, and other forms of disruption that lead to the replacement of the native species with the invasive species. As a result, invasives very often cause serious harm to the environment, the economy, and even human health. A prominent example is the Emerald Ash Borer, a non-native, invasive beetle that is responsible for the widespread death of ash trees.

As noted above, there are a large number of aquatic invasive species. Some of the more commonly occurring non-native aquatic plant species that impact East Coast lakes, ponds and reservoirs include:

Understanding How Invasives Spread

Either intentionally or unintentionally, people have helped spread invasives around the globe. This is not a recent phenomenon but rather something that has been occurring for centuries. “Intentional introductions,” the deliberate transfer of nuisance species into a new environment, can involve a person pouring their home aquarium into a lake or deliberate actions intended to improve the conditions for various human activities, for example, in agriculture, or to achieve aesthetics not naturally available.

Photo by: Tom Britt/CC Flickr, zebra Mussels adhered to a boat propeller“Unintentional introductions” involve the accidental transfer of invasives, which can happen in many ways, including aquatic species attached to the hull of boats or contained in bilge and ballast water. A high-profile example is the introduction of zebra mussels to North America. Native to Central Asia and parts of Europe, zebra mussels accidentally arrived in the Great Lakes and Hudson River via cargo ships traveling between the regions. The occurrence, density, and distribution of Zebra mussels occurred at an alarming rate, with the species spreading to 20 states in the United States and to Ontario and Quebec in Canada. Due to their reproductive fecundity and filter-feeding ability, they are considered the most devastating aquatic invasive species to invade North American fresh waters. They alter and diminish the plankton communities of the lakes that they colonize leading to a number of cascading trophic impacts that have especially negative consequences on fisheries. Zebra mussel infestations have also been linked to increased cyanobacteria (bluegreen algae) blooms and the occurrence of harmful algae blooms (HABs) that impact drinking water quality, recreational use, and the health of humans, pets, and livestock.

Additionally, higher than average temperatures and changes in rain and snow patterns caused by climate change further enable some invasive plant species to move into new areas. This is exemplified by the increased northly spread of hydrilla (Hydrilla verticillate), a tropical invasive plant species that has migrated since its introduction in Florida in the 1950s to lakes, rivers, and reservoirs throughout the U.S.

Regardless of how any of these invasive species first became established, the thousands of terrestrial and aquatic invasive species introduced into the U.S. have caused major ecological, recreational and economic impacts.

Measuring the Impacts of Invasives

After habitat loss, invasive, non-native species are the second largest threat to biodiversity. According to The Nature Conservancy, “Invasive species have contributed directly to the decline of 42% of the threatened and endangered species in the United States. The annual cost to the nation’s economy is estimated at $120 billion a year, with over 100 million acres (an area roughly the size of California) suffering from invasive plant infestations. Invasive species are a global problem — with the annual cost of impacts and control efforts equaling 5% of the world’s economy.”

Of the $120 billion, about $100 million per year is spent on aquatic invasive plant control to address such deleterious issues as:

  • Human health (West Nile Virus, Zika Virus)
  • Water quality impacts (Canada geese)
  • Potable water supplies (Zebra mussel)
  • Commercial fisheries (Snake head, lamprey, Eurasian ruffe, round goby)
  • Recreational activities (Eurasian watermilfoil, water chestnut, hydrilla)
  • Biodiversity (Purple loosestrife, common reed, Japanese knotweed)

Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. As the National Wildlife Federation explains, “The invasive species may provide little to no food value for native wildlife. Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife. Additionally, some invasive species are capable of changing the conditions in an ecosystem, such as changing soil chemistry…”

Addressing Invasives

Our native biodiversity is an irreplaceable and valuable treasure. Through a combination of prevention, early detection, eradication, restoration, research and outreach, we can help protect our native heritage from damage by invasive species.

What Can We Do?

  • Reduce the spread
  • Routinely monitor
  • Document and report
  • Spread the word

Reducing the Spread:
The best way to fight invasive species is to prevent them from occurring in the first place. There are a variety of simple things each of us can do to help stop the introduction and spread of invasives.

  • Plant native plants on your property and remove any invasive plants. Before you plant anything, verify with your local nursery and check out this online resource for help in identifying invasive plants.
  • Thoroughly wash your gear and watercraft before and after your trip. Invasives come in many forms – plants, fungi and animals – and even those of microscopic size can cause major damage.
  • Don’t release aquarium fish and plants, live bait or other exotic animals into the wild. If you plan to own an exotic pet, do your research to make sure you can commit to looking after it. Look into alternatives to live bait.

Monitoring:
The Lake Hopatcong Foundation Water Chestnut prevention brochureInvasive plant monitoring is one of the most valuable site­-level activities people can support. Contact your local watershed organizations to inquire about watershed monitoring volunteer opportunities. For example, the Lake Hopatcong “Water Scouts” program was established to seek out and remove any instances of the invasive water chestnut species.

If you are a lake or watershed manager, the best way to begin an invasive plant monitoring project is with an expert invasive plant survey to determine which invasives are most likely to be problematic in your watershed and identify the watershed’s most vulnerable areas. Contact us to learn more.

 

Documenting and Reporting:
It’s important to learn to identify invasive species in your area and report any sightings to your county extension agent or local land manager. For example, in New Jersey there is the Invasive Species Strike Team that tracks the spread of terrestrial and aquatic invasives and works with local communities in the management of these species. Additionally, consider developing a stewardship plan for your community to help preserve its natural resources. Princeton Hydro’s team of natural resource scientists can help you get the ball rolling by preparing stewardship plans focused on controlling invasive species and protecting the long-term health of open spaces, forests habitats, wetlands, and water-quality in your community.

Spreading the word:
Many people still don’t understand the serious implications of invasive species. Education is a crucial step in stopping the spread of invasives, which is why it’s so important to talk with your neighbors, friends and family about the hazards and ecological/economic impacts of invasive species.

Also consider talking with your community lake or watershed manager about hosting an educational workshop where experts can share their knowledge about invasives specific to your area and how best to address them. Princeton Hydro’s Director of Aquatic Programs Dr. Fred Lubnow recently gave a presentation to the Lake Hopatcong Foundation titled, “Invasive Species in Watershed Management.” View it here.

 

We encourage you to share this article and spread your invasive species knowledge so that together we can help stop the introduction and spread of invasive species.

2019 Successes: A Year in Review

Over the last two decades, we’ve restored many miles of rivers, improved water quality in hundreds of ponds and lakes, and enhanced thousands of acres of ecosystems in the Mid-Atlantic and New England regions. In 2019, we had our best year yet. As we reflect back on 2019 and set our sights on 2020, we have many successes to celebrate:

1. We Designed the Largest Dam Removal in New Jersey.

The century-old Columbia Dam was removed and fish passage was restored on the 42-mile long Paulins Kill river, an important tributary to the Delaware River in northwestern New Jersey. On Earth Day 2019, just two months after the river finally flowed free, we were thrilled to discover the return of American shad upstream for the first time in over 100 years.

Hudson River Bear Mountain Bridge (Photo from Wikipedia)

2. We Conceptualized Six Sites Along the Hudson River for Habitat Restoration.

Our team completed a feasibility study for the U.S. Army Corps of Engineers (USACE), which identified and conceptualized restoration opportunities at six key sites. For this Hudson River Habitat Restoration Integrated Feasibility Study and Environmental Assessment, Princeton Hydro collected and analyzed data, reviewed existing conditions, and drafted conceptual restoration designs. Our final report was just highlighted by USACE at the 2019 Planning Community of Practice (PCoP) national conference at the Kansas City District as an example of a successfully implemented Ecosystem Restoration Planning Center of Expertise (ECO-PCX) project.

3. National and Regional News Outlets Featured Princeton Hydro Harmful Algal Bloom Experts.

After a record-breaking number of HABs broke out in lakes across the region, our Aquatics Team was called upon for their expertise and insights into why the outbreak was happening, what could be done to treat it, and what preventative actions will lessen the likelihood of future outbreaks. In addition to being featured in various regional news outlets covering the HABs topic, Princeton Hydro experts were featured in the New York Times and the Washington Post for their leadership at the largest lake in New Jersey, Lake Hopatcong. (Photo credit: Washington Post)

4. Our Staff Presented, Exhibited, and Attended Over 50 Events.

From galas to environmental conferences and river restoration tours to college courses, the Princeton Hydro team participated in more than 50 events throughout 2019. Dr. Clay Emerson, PE taught a Green Infrastructure Stormwater Management Course at Montclair University. Kelsey Mattison, Marketing Coordinator, presented at the 3rd Annual New Jersey Watershed Conference. And, at the New Jersey Land Conservation Rally, we had three presentations on citizen science, marketing strategy, and lake stewardship. Various team members rolled up their sleeves to volunteer to plant trees at Exton Park on Arbor Day, build a rain garden in Clawson Park, and restore eroding shoreline in Point Pleasant. Stayed tuned for more in 2020!

5. We’re Restoring the Northernmost Freshwater Tidal Marsh on the Delaware River.

Mercer County’s John A. Roebling Memorial Park is home to the northernmost freshwater tidal marsh on the Delaware River, Abbott Marshland, an area containing valuable habitat for many rare species. Unfortunately, the area has experienced a significant amount of loss and degradation, partially due to the introduction of the invasive Phragmites australis. The Princeton Hydro team proudly removed this invasive species and is restoring the marsh to enhance plant diversity, wildlife habitat, and water quality.

6. We Upcycled Christmas Trees to Stabilize an Eroding Shoreline for the First Time in NJ.

To prevent further erosion at the Slade Dale Sanctuary in Point Pleasant, dozens of volunteers helped stabilize the shoreline using recycled Christmas trees, a technique never been done before in New Jersey. The 13-acre Slade Dale Sanctuary is an important part of the local ecosystem and much work is being done there to restore the marsh and enhance the ecological function and integrity of the preserve. Princeton Hydro developed a conceptual and engineering design using living shoreline features, including tree vane structures to attenuate wave action, foster sediment accretion, and reduce erosion.

7. Princeton Hydro Earned Three Prestigious Awards.

The Friends of the Presumpscot River awarded Laura Wildman, P.E., with its “Chief Polin Award” for her accomplishments and efforts in bringing life back to the Presumpscot River and rivers across the nation. The New Jersey Highlands Coalition honored Founding Principal Dr. Stephen Souza with a Lifetime Achievement Award, touting his dedication to preserving and protecting New Jersey’s watersheds and natural resources. And, our Pin Oak Forest and Wetland Restoration project earned the “Land Ethics Award of Merit” from Bowman’s Hill Wildflower Preserve for its remarkable restoration achievements.

8. We’re Converting an Urban, Flood-Prone Industrial Site into a Thriving Public Park.

Along the Third River and Spring Brook, two freshwater tributaries of the Passaic River, a former industrial site that is highly-disturbed and flood-prone is being transformed into a thriving public park. The team broke ground on this important ecological restoration and urban wetland creation project in March and the restoration work continues. Princeton Hydro is serving as the ecological engineer to Bloomfield Township providing a variety of services and expertise.

9. Princeton Hydro Welcomed 12 New Staff and Added Two Key Positions.

As part of the expansion of our growing business, Princeton Hydro added 12 team members with expertise and qualifications in a variety of fields. In July, we announced a new executive position in the firm, Chief Operating Officer, to which Kevin M. Yezdimer, P.E. was appointed. We also created an internal Human Resources Department and hired Samara McAuliffe as Employee Relations Manager. Princeton Hydro has grown from a small, four-person idea operating out of a living room to a 65+ person qualified Small Business with six office locations in the Northeast region.

10. New Year, New Locations!

We’re moving on up! In 2019, we moved our D.C. Regional Office down the road from Annapolis, MD to Bowie, MD expanding into a larger office space to accommodate our staff growth and providing opportunity for more growth in the region. And, in late 2019, through our strategic partnership with Merestone Consulting, we opened a sixth office in Wilmington, Delaware. Stay tuned for more information!

 

Thank you for supporting Princeton Hydro and sharing our stories. We truly appreciate each and every one of our clients and partners. Cheers to a fruitful 2020 and beyond!

Identifying, Understanding and Addressing Harmful Algae Blooms

Harmful Algae Bloom Visible in Owasco Lake. Photo by: Tim Schneider

Harmful Algae Blooms (HABs) were in the spotlight this summer due to the severe impacts they had on lakes throughout the country. The nation-wide HABs outbreak caused beach closures, restricted access to lake usage, and wide-ranging health advisories.

What exactly are HABs? Why were they so severe this summer? Will this trend continue? Can anything be done to prevent the occurrence or mitigate the impacts?

In this blog, we provide answers to all of those questions, exploring what HABs are, why they occur, why they were particularly prevalent this summer, and what we can do to combat them.

What are HABs?

Simply put, HABs are rapid, large overgrowths of cyanobacteria. Cyanobacteria, also known as blue-green algae, aren’t actually algae, they are prokaryotes, single-celled aquatic organisms that are closely related to bacteria and can photosynthesize like algae. These microorganisms are a natural part of aquatic ecosystems, but, under the right conditions (primarily heavy rains, followed by hot, sunny days), these organisms can rapidly increase to form cyanobacteria blooms, also known as HABs.

HABs can cause significant water quality issues in lakes and ponds, often forming a visible and sometimes odorous scum on the surface of the water. They can produce toxins that are incredibly harmful (even deadly) to humans, animals, and aquatic organisms. HABs also negatively impact economic health, especially for communities dependent on the income of jobs and tourism generated through their local lakes and waterways.

What causes HABs?

HABs are caused by a complex set of conditions, and many questions remain about exactly why they occur and how to predict their timing, duration, and toxicity. Primarily, HABs are caused by warmer temperatures and stormwater run-off pollutants, including fertilizers with phosphates.

NY Times article, featuring Princeton Hydro, looks at how climate change affects lakes nationwide, using NJ as an example. Photo by: Rick Loomis, NY Times.HABs are induced by an overabundance of nutrients in the water. The two most common nutrients are fixed nitrogen (nitrates and ammonia) and phosphorus. Discharges from wastewater treatment plants, runoff from agricultural operations, excessive fertilizer use in urban/suburban areas, and stormwater runoff can carry nitrogen and phosphorus into waterways and promote the growth of cyanobacteria.

Climate change is also a factor in HAB outbreaks, which typically occur when there are heavy rains followed by high temperatures and sunshine. Climate change is leading to more frequent, more intense rainstorms that drive run-off pollutants into waterways, coupled with more hot days to warm the water. These are the ideal conditions for HABs, which in recent years have appeared in more places, earlier in the summer.

With climate change and increasing nutrient pollution causing HABs to occur more often and in locations not previously affected, it’s important for us to learn as much as we can about HABs so that we can reduce their harmful effects.

What Can I Do to Prevent HABs?

Signs on the closed beach at Hopatcong State Park warn residents of the Harmful Algae Bloom at Lake Hopatcong on July 2019, in Landing, NJ. (Photo by: Danielle Parhizkaran of NorthJersey.comThe number one thing individuals can do to protect their waterbodies and prevent HABs is to reduce phosphorous use and reduce nutrient loads to waters.

According to Dr. Fred Lubnow, Director of Aquatic Programs for Princeton Hydro, “Managing loads of phosphorous in watersheds is even more important as the East Coast becomes increasingly warmer and wetter thanks to climate change. Climate change will likely need to be dealt with on a national and international scale. But local communities, groups, and individuals can have a real impact in reducing phosphorous levels in local waters.”

Here are a few steps you can take to improve water quality in your community lakes:

Controlling stormwater runoff is another critical factor in improving water quality and reducing HABs. There are a number of low-cost green infrastructure techniques that can be implemented on an individual and community-wide scale. You can read more about green infrastructure stormwater management techniques in our recent blog.

In a recent Op/Ed published on NJ.com, Princeton Hydro President Geoff Goll lists four things that residents, businesses, and local governments should do to prevent another HABs outbreak next summer:

  1. Improve aging “gray” infrastructure
  2. Invest in “green” stormwater infrastructure
  3. Implement regional/watershed-based planning
  4. Pass the Water Quality Protection and Jobs Creation Act

“By making the necessary investments, we can simultaneously create jobs, reduce flood impacts, improve fisheries, maintain or increase lakefront property values, improve water quality and preserve our water-based tourism. The time to act is literally now,” said Geoff. Go here, to read the full article.

HABs Management in Action through Floating Wetland Islands:

Nitrogen and phosphorus are utilized by plants, which means they uptake these nutrients to sustain growth. We see this naturally occurring in wetland ecosystems where wetlands act as a natural water filtration system and can actually thrive from nutrients flowing in from external sources.

This process is replicated in floating wetland islands (FWIs), where you typically have a constructed floating mat with vegetation planted directly into the material. The plants then grow on the island, rooting through the floating mat.

This illustration, created by Staff Scientist Ivy Babson, conveys the functionality of a Floating Wetland Island

This illustration, created by Staff Scientist Ivy Babson, conveys the functionality of a Floating Wetland Island

Not only do FWIs assimilate and remove excess nitrogen and phosphorus out of the water, they also provide habitat for fish and other aquatic organisms; help mitigate wave and wind erosion impacts; provide an aesthetic element; and can be part of a holistic lake/pond management strategy. Because of this, FWIs are being utilized to improve water quality and control HABs in lakes and ponds throughout the country. Princeton Hydro has designed and implemented numerous FWIs in waterbodies large and small. Go here to learn how they’re being used in Harveys Lake.

 

Recognizing and monitoring the changes that are taking place in our local waterways brings the problems of climate change, stormwater pollution and the resulting water quality issues closer to home, which can help raise awareness, inspire environmentally-minded action and promote positive, noticeable change.

If you spot what you believe to be a harmful algae bloom in your community lake, contact your local lake association right away. They, along with their lake management team, can assess the situation and determine what further actions need to be taken.

For more information about harmful algae blooms and water quality management, go here: http://bit.ly/pondlake.

Special thanks to Princeton Hydro Staff Scientist Ivy Babson for her contributions to this blog.

Laura Wildman Awarded for “Bringing the Presumpscot River Back to Life”

Photo provided by the Friends of the Presumpscot River

The Friends of the Presumpscot River (The Friends) Board of Trustees awarded Laura Wildman, P.E., Princeton Hydro’s New England Regional Office Director and Water Resources and Fisheries Engineer, with its “Chief Polin Award.” The award recognizes Laura for her accomplishments and efforts in bringing life back to the Presumpscot River and rivers across the nation. The award was presented at The Friends’ Three Sisters Harvest Dinner & Annual Celebration.

The Chief Polin Award recognizes those who are making significant efforts to restore fish passage, improve water quality and bring back the natural character of the Presumpscot river.During her acceptance speech, Laura thanked The Friends for its continued dedication to restoring fish passage and revitalizing the river. “I am so proud to be part of the ‘river warriors’ team,” Laura said. “Our collective efforts to protect and restore the river have resulted in invaluable benefits to fish, aquatic organisms, wildlife, and the surrounding communities.”

The award is named after local Abanaki tribe leader Chief Polin, who led the first documented dam protest in New England during the mid-1700s, advocating for fish passage, which had been compromised by the first dams built along the river. The award recognizes those who are making significant efforts to restore fish passage, improve water quality, and bring back the natural character of the Presumpscot River. Sean Mahoney from the Conservation Law Foundation also received the Chief Polin Award during the Annual Celebration.

Map provided by The Friends of the Presumpscot RiverLocated in Cumberland County, Maine, the Presumpscot is a 25.8-mile-long river and the largest freshwater input into Casco Bay. The river has long been recognized for its vast quantity of fish. According to The Friends, when Europeans first arrived, they reported that “the entire surface of the river, for a foot deep, was all fish.”

In the 1730s, however, the construction of dams halted the passage of fish up the river. As more dams sprung up in the following centuries, the ecological vitality of the river steadily declined.

For more than 250 years, people have advocated for the unobstructed passage of fish up the Presumpscot River. Over the last 50 years, the river has undergone profound transformation due to the enactment of the Clean Water Act, the removal of a few dams, and the installation of fish passages on existing dams. Fish passage at Cumberland Mills Dam, which was completed in 2013, restored critical habitat to sea run fish such as shad, American eel, and river herring, and allowed them to move upstream again.

Saccarappa Falls dam removal in actionIn July, work began to restore a large reach of the river through Westbrook, Maine. The project involves the removal of two dam spillways from the upper Saccarappa Falls and the construction of a fishway around the lower falls. The project, which was three years in the making, was finally approved to move forward once the City of Westbrook, Sappi Fine Paper, the U.S. Fish and Wildlife Service, the Maine Department of Marine Resources, and the nonprofits, Friends of the Presumpscot River and Conservation Law Foundation, were able to reach a ground breaking settlement. The Saccarappa Falls project is a major step in restoring the river and was a focal point of the Three Sisters Harvest Dinner, celebrating decades of effort on the parts of the Friends of the Presumpscot along with their numerous project partners, including Princeton Hydro.

About the Friends of the Presumpscot River: A nonprofit organization founded in 1992, supported primarily by membership dues and small donations. Its mission is to protect and improve the water quality, indigenous fisheries, recreational opportunities and natural character of the Presumpscot River.
Learn more: presumpscotriver.org

About Princeton Hydro: Princeton Hydro has designed, permitted, and overseen the removal of dozens of small and large dams along the East Coast. To learn more about our fish passage and dam removal engineering services, visit: bit.ly/DamBarrier.