Mitigation Milestone Reached at Mattawoman Creek Mitigation Site

Photo courtesy of GreenVest

Mattawoman Creek Mitigation Project will Restore and Protect 80+ Acres of Mattawoman Creek, Chesapeake Bay’s Most Productive Tributary

As one of the Chesapeake Bay’s most productive tributaries and a vital part of Maryland’s natural resources, Mattawoman Creek supports some of the largest populations of finfish, amphibians, and birds in the state. A collaborative team of private and public sector entities have designed the “Mattawoman Creek Mitigation Site” in Pomfret, Charles County, Maryland, an effort that will enhance or create 64+ acres of wetlands and restore nearly 3,800 linear feet of this perennial stream.  With over 28,500 native trees and shrubs to be planted, this mitigation project will result in 80+ acres of continuous, forested wetland with complex and diverse vegetative communities. It is expected to provide a wide array of habitat to resident and transient wildlife, including birds, reptiles, invertebrates, amphibians and rare, threatened and endangered species.

Unique to this project, Mattawoman Creek Mitigation Site is Maryland’s first-ever Umbrella Mitigation Banking Instrument (UMBI) for federal and other government agency use.   A UMBI is the bundling of multiple mitigation banks into one agreement in order to streamline the regulatory approval process, thereby eliminating steps and involving fewer resources. The Maryland UMBI document helps the USAF and other public agencies secure certainty of cost and schedule, facilitate timely permit issuance, and expedite the satisfaction of their permitted requirements for planned capital improvement projects. This approach also maximizes the scale of restoration and resulting land protection and efforts, creating contiguous blocks of habitat with greatly enhanced benefits compared to single, permittee-responsible projects. This precedent was a result of a partnership between United States Air Force (USAF) and Joint Base Andrews (JBA), U.S. Army Corps of Engineers (USACE), Maryland Department of the Environment (MDE), GreenTrust Alliance, GreenVest, and Princeton Hydro.

Projects completed under the UMBI will reduce federal and state workload expediting the regulatory review and issuance of permits by the MDE and USACE. Additionally, projects completed under this UMBI will aid in compliance with the Federal Paperwork Reduction Act where federal regulatory staff can evaluate success and performance issues for multiple permittees at one single habitat restoration or mitigation site. In addition, federal costs are capped, and liabilities  are transferred through to GreenVest, the private sector operator, and GreenTrust Alliance, the nonprofit bank sponsor, who will also serve as the long-term steward of sites restored under this program.

Pictured is the southern restoration area after
sorghum germination, prior to wetland creation
and reestablishment.
A function-based stream assessment was
performed on the degraded channel.

 

Photo courtesy of GreenVestDesign, engineering/modeling, and permitting of the site was completed by  Princeton Hydro and GreenVest under our currently Ecosystem Restoration contract with the USACE. Princeton Hydro also provided an Environmental Assessment and Environmental Baseline Survey, and conducted a geotechnical investigation, which included the advancement of test pits, visual and manual investigation techniques and logging, infiltration testing, laboratory soils testing, and seasonal high-water table estimations.

A wetland water budget was also developed for the proposed wetland creation and restoration to determine if sufficient water is available to establish or reestablish wetlands on the site. It was also used to inform design development including proposed grading and plant community composition. The establishment and re-establishment of wetlands on the site will be accomplished through directed grading, ditch plugging and stream restoration designed to maximize the retention of surface water, floodplain re-connection, and groundwater inputs.

Highlights from the Mattawoman Creek Wetland and Stream Mitigation project:
  • 80 acres of land were placed into conservation easement and removed from active row crop production and cattle pasture. The easement, which is held by GreenTrust Alliance, provides permanent protection for all 80 acres.
  • Over 64 acres of wetlands will be restored, created, enhanced or preserved, which will sequester approximately 75 tons of carbon per year.
  • 3,798 linear feet of perennial stream will be restored by re-establishing, historic floodplain access during more frequent storm events, stabilizing hydraulics and geomorphology, and adding aquatic habitat value.
  • Full integration of the wetland and stream restoration elements will occur exponentially, increasing anticipated functions and values in the post construction condition. Functions include: storm damage and flood attenuation, groundwater recharge and discharge, nutrient cycling and sequestration, local water quality improvement, and wildlife habitat enhancements.
  • This project will also create and enhance the forested wetland and stream habitat for the State-listed Threatened Selys’ Sundragon (Helocordulia selysii).
  • As part of the site design, over 28,500 native trees and shrubs will be planted.
  • The Mattawoman Creek Mitigation Site is located within a Tier 3 Biodiversity Conservation Network area. These areas are classified by the Department of Natural Resources as “highly significant for biodiversity conservation” and are priority conservation areas that support critical species and habitats.
  • The project will yield advanced mitigation values: 7.913 in wetland credits and 1,595 in stream credits. These credits are durable and will be available for JBA’s use in order to satisfy permitted impacts associated with planned capital improvement projects.

Over 6,000 acres (25%) of the Mattawoman Creek watershed has been protected by public ownership and various conservation and agricultural easements, which, in addition to the Mattawoman Creek Mitigation Site, help ensure that Mattawoman Creek forever remains a high-quality destination for outdoor recreation.

Princeton Hydro specializes in the planning, design, permitting, implementing, and maintenance of tidal and freshwater wetland rehabilitation projects. To learn more about our wetland restoration, creation, and enhancement services, visit: http://bit.ly/PHwetland

Innovative and Effective Approach to Wetland Restoration

The Pin Oak Forest Conservation Area is a 97-acre tract of open space that contains an extremely valuable wetland complex at the headwaters of Woodbridge Creek. The site is located in a heavily developed landscape of northern Middlesex County and is surrounded by industrial, commercial, and residential development. As such, the area suffered from wetland and stream channel degradation, habitat fragmentation, decreased biodiversity due to invasive species, and ecological impairment. The site was viewed as one of only a few large-scale freshwater wetland restoration opportunities remaining in this highly developed region of New Jersey.

Recognizing the unique qualities and great potential for rehabilitating and enhancing ecological function on this county-owned parkland, a dynamic partnership between government agencies, NGOs, and private industry, was formed to restore the natural function of the wetlands complex, transform the Pin Oak Forest site into thriving habitat teeming with wildlife, and steward this property back to life. The team designed a restoration plan that converted 28.94 acres of degraded freshwater wetlands, 0.33 acres of disturbed uplands dominated by invasive species, and 1,018 linear feet of degraded or channelized streams into a species-rich and highly functional headwater wetland complex.

BEFORE
View of stream restoration area upon commencement of excavation activities. View of containerized plant material staged prior to installation.

 

We used an innovative approach to restore the hydraulic connection of the stream channel with its floodplain in order to support wetland enhancement. Additionally, to further enhance wetlands with hydrologic uplift, the team incorporated microtopography techniques, which creates a variable surface that increases groundwater infiltration and niches that support multiple habitat communities. This resulted in a spectrum of wetland and stream habitats, including the establishment of a functional system of floodplain forest, scrub shrub, emergent wetlands and open water. Biodiversity was also increased through invasive species management, which opened the door for establishing key native flora such as red maple, pin oak, swamp white oak, and swamp rose. The restored headwater wetland system also provides stormwater quality management, floodplain storage, enhanced groundwater recharge onsite, and surface water flows to Woodbridge Creek.

Completed in 2017, the integrated complex of various wetland and upland communities continues to provide high quality habitat for a wide variety of wildlife species including the state-threatened Black-crowned Night heron and Red-headed Woodpecker. The work done at the site significantly enhanced ecological function, providing high-quality habitat on indefinitely-preserved public lands that offer countless benefits to both wildlife and the community.

AFTER
Post-restoration in 2018, looking Northeast. View of wetland enhancement approximately 2 months after completion of seeding and planting activities.

 

Public and private partnerships were and continue to be critical to the success of this project. The diverse partnership includes Middlesex County Office of Parks and Recreation, Woodbridge Township, Woodbridge River Watch, New Jersey Freshwater Wetlands Mitigation Council, GreenTrust Alliance, GreenVest, and Princeton Hydro. The partners joined together as stakeholders to identify long term restoration and stewardship goals for Pin Oak Forest Preserve, and nearly four years later, the partners all remain involved in various aspects of managing the property and this project itself, ranging from fiscal oversight by New Jersey Freshwater Wetland Mitigation Council and GreenTrust Alliance, to permit and landowner access coordination performed by Woodbridge Township and Middlesex County, or the ongoing stewardship, maintenance, and monitoring of the project and the larger park, being conducted by being conducted by GreenTrust Alliance, GreenVest, and NJ Department of Environmental Protection.

This project was funded through the New Jersey Freshwater Wetland In-Lieu Fee program. In 2014, GreenTrust Alliance, GreenVest, and Princeton Hydro secured $3.8 million dollars of funding on behalf of the Middlesex County Parks Department to restore three wetland sites, which included Pin Oak Forest.

The Pin Oak Forest project is a great model for showcasing a successful approach to the enhancement of public lands through a dynamic multidisciplinary, multi-stakeholder partnership. And, because of proper planning and design, it has become a thriving wildlife oasis tucked in the middle of a densely-populated suburban landscape.

Princeton Hydro specializes in the planning, design, permitting, implementing, and maintenance of wetland rehabilitation projects. To learn more about our wetland restoration, creation, and enhancement services, visit: bit.ly/PHwetland

September Events Spotlight: Webinars, Conferences & Film Festival

Princeton Hydro is proud to participate in a number of conferences, events, and webinars throughout September:

 

September 6 at 12 pm: “Social Media Hacks” Webinar for the Society for American Military Engineers (SAME) Young Member Council 

SAME Young Member Council is hosting a webinar that will offer solutions for boosting social media presence and increasing engagement. Designed for social media beginners and experts alike, the webinar titled, “Social Media Hacks,” will be presented by Dana Patterson, Communications Strategist for Princeton Hydro. Participants will learn about creating successful social media strategy, utilizing free social media management tools, tracking social media analytics, and executing high-quality posts on various social media platforms. The webinar is free for SAME Members and $25 for all non-members.

Learn more and register.

 

September 9: Wild & Scenic Film Festival On Tour

Hosted by Musconetcong Watershed Association, the “Wild & Scenic Film Festival On Tour” celebrates the 50th Anniversary of the Wild and Scenic Rivers Act by bringing communities together to screen films that call attention to local and global environmental issues. The Hackettstown, NJ tour event, which Princeton Hydro is a proud sponsor of, will feature 11 short films including River Connections, a film that explores the importance of free-flowing rivers and highlights the recent Hughesville Dam removal project. An interactive panel event will follow the film screening and feature experts including MWA Executive Director Alan Hunt, Ph.D. and Princeton Hydro President Geoffrey Goll, P.E., who were both interviewed in the film. This event is free and open to the public, but registration is required.

Learn more and register.

 

September 12: Schuylkill Action Network’s (SAN) Water Utility Forum

This year’s SAN Forum will cover a variety of water-quality related topics, including perfluorinated compound (PFCs) and upcoming drinking water regulations. The forum will provide a platform to collaborate and share information, expertise, and technology to help achieve a shared vision of clean water and a healthy environment for the Schuylkill River and its tributaries. A variety of presentations will be offered during the forum, including one by Dr. Fred Lubnow, Director of Aquatics Programs for Princeton Hydro, on the topic of Harmful Algal Blooms (HABs).

Learn more and register.

 

September 15: Mercer County Park Commission’s River Days

Join Mercer County Park Commission for “River Days,” a free, family-friendly event at the Tulpehaking Nature Center with trail activities, arts and crafts, a raffle, and a neighborhood cookout on the back lawn of the nature center. Check out the Princeton Hydro air boat and chat with our Aquatics Field Director about the upcoming multi-year restoration of freshwater tidal wetlands in John A. Roebling Memorial Park. The restoration project is a partnership between Mercer County, New Jersey, Mercer County Park Commission, and Princeton Hydro.

Learn more.

 

September 23-26: 91st Annual Water Works Operators’ Association of Pennsylvania (WWOAP) Conference

WWOAP is hosting its 91st annual conference, which offers a diverse collection of professional presentations, workshops, networking events and an exhibit hall. Princeton Hydro’s Director of Aquatics Programs  Dr. Fred Lubnow is presenting on “Managing HABs and Their Associated Cyanotoxins in Raw Water.” Other presentation topics include “What Might Climate Change Look Like in Pennsylvania,” “A Multi-Lateral Approach to Water Loss Reduction,” and “Achieving Water Quality Optimization.”

View the full conference program.

 

September 25: New England Interstate Water Pollution Control Commission (NEIWPCC) Research Webinar

NEIWPCC is offering a free research webinar on modeling and flood-mitigation recommendations for a forested and urban Hudson River tributary watershed. The webinar takes a look at the Moodna Creek Watershed and Flood Mitigation Assessment and describes how flood models were used to inform recommendations for reducing and mitigating existing and anticipated flood risk. The assessment was conducted by environmental consultants at Princeton Hydro and GreenVest, and funded by NEIWPCC through the New York Department of Environmental Conservation’s Hudson River Estuary Program. This free webinar will be presented by Christiana Pollack, GISP, CFM, Environmental Scientist & GIS Manager for Princeton Hydro, and Jessica Jahre, CFM, AICP.

Learn more and register.

 

September 28: Alliance for NJ Environmental Education (ANJEE) Autumn Conference

Duke Farms will host ANJEE’s Autumn Conference, titled “Imagine a World Outdoors.” The conference, which takes place completely outdoors and does not include a single PowerPoint presentation, invites environmental education professionals throughout New Jersey to come together to collaborate around innovative ideas, learn and disseminate best practices, and network. Participants will explore natural history with local experts in birding, animal tracking, and plant identifying and learn trade secrets from experienced outdoor teachers who will share their methods and techniques. Princeton Hydro’s Dana Patterson and Pinelands Adventures’ Danielle Odom are teaching a workshop on “How to Bring Out the Inner Bird Nerd in your Students. ANJEE hopes the event will inspire participants to become more informed and dedicated stewards of the land.

Learn more and register.

 

Stay tuned for more event updates!

“2018 Land Ethics Award of Merit” awarded to Mullica River Wetland Mitigation Project

At the 18th Annual Land Ethics Symposium, which is presented by Bowman’s Hill Wildflower Preserve, Princeton Hydro and GreenVest, LLC were honored with the “2018 Land Ethics Award of Merit” for our restoration work at the Mullica River Wetland Mitigation Site.

We teamed up to restore the natural wetland hydrology on a 34-acre parcel of land which was heavily impaired and intensely manipulated for cranberry production over the last century. The area was home to a network of earthen berms surrounding cranberry cultivating bogs, where water onsite was managed through a series of ditches and water control structures set into the berms. The cranberry operation was bordered mostly by an Atlantic white cedar dominated swamp.

“Thank you to Bowman’s Hill for honoring this successful wetland restoration project,” said Mark Gallagher, Vice President of Princeton Hydro. “Through our partnership with GreenVest, we transformed a degraded cranberry bog into thriving emergent and forested wetlands, and restored historic headwater stream channels. These restored wetlands are providing invaluable habitat to a variety of threatened and endangered species in New Jersey, including the Pine Barrens Treefrog and Barred Owl.” 

 

While this site was degraded, it still contained four state listed species, including the state-endangered Timber Rattlesnake and the Pine Barrens Tree Frog, making it a priority site for restoration. The presence of these species influenced the design as it included provisions to incorporate habitat elements for these species.

Through the implementation of restoration activities focused on removing the site’s agricultural infrastructure, Princeton Hydro and GreenVest were able to restore a natural wetland system on the site. In addition, the restoration project reconnected the site to its floodplain and re-established a natural stream channel. The expansive, flat and wide floodplain wetland complex of the Alquatka Branch of the Mullica RIver provides floodplain connectivity for relatively frequent storm events and allows for a sustainable floodplain wetland complex in the former cranberry bog cells.

The completed project incorporated a balance of both ecological and human health and safety benefits. Additionally, the project involved innovative restoration techniques that required building consensus among local watershed protection groups and state and regional regulators, including New Jersey Department of Environmental Protection and the New Jersey Pinelands Commission. In the end, the project restored 34 acres of a highly functioning forested wetland/upland complex and reestablished 1,600+ linear feet of historic headwater stream channels.

Princeton Hydro would like to thank Bowman’s Hill Wildflower Preserve for both the award and for a organizing another successful Land Ethics Symposium. The conference focused on ways to create low-maintenance, economical and ecologically balanced landscapes using native plants and restoration techniques. Princeton Hydro was a proud “Friends Sponsor” of the event.