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The planting was completed in one day by a team of 20+ volunteers, staff members from Mt. Arlington Department of Public Works (DPW), Lake Hopatcong Foundation, Lake Hopatcong Commission, Princeton Hydro, and a generous community member who volunteered his excavating equipment (and time). The planting initiative aims to prevent shoreline erosion, promote the growth of native species, increase wildlife habitat, and improve the water quality of Memorial Pond and Lake Hopatcong. Funding for this project was secured through a grant from the New Jersey Department of Environmental Protection, awarded to the Lake Hopatcong Commission in partnership with the Lake Hopatcong Foundation. [caption id="attachment_13422" align="aligncenter" width="616"] Photo by Lake Hopatcong Foundation Executive Director Kyle Richter[/caption] Memorial Pond Memorial Pond is a 0.3-acre stormwater runoff basin that gradually releases into Glen Brook, which then flows into Lake Hopatcong. The pond receives sheet flow of stormwater from the adjacent road, which contributes to nutrient and sediment loading, thus locally reducing water quality in Memorial Pond and ultimately the waters of Lake Hopatcong. Memorial Park, which includes Memorial Pond and Glen Brook, was identified by Princeton Hydro and the Lake Hopatcong team as a priority site for improvement, targeting initiatives that reduce pollutants and excessive nutrients entering into Lake Hopatcong. Additionally, the pond’s steeply-sloped shoreline was bare and only stabilized with large rocks at the base of the banks. In the absence of stabilizing vegetation, the pond’s banks were experiencing erosion, and there was some concern about a few mature trees along the shoreline potentially falling into the pond. [gallery link="none" ids="13416,13407,13413"] The photos above were taken in April 2023 before the planting initiative. Shoreline Planting Initiative The plant selection and layout were designed taking into account the steep slope and presence of mature, existing trees as well as focusing on regionally native plant species that will thrive and help stabilize the eroding shoreline. The planting team, led by Princeton Hydro Landscape Architect Jamie Feinstein, RLA and Aquatics Project Manager Pat Rose, was given precise instructions on how to install the plants to eliminate washouts and ensure the root systems can embrace the soil and hold it in place. A variety of native herbaceous plants and shrubs were chosen for the site, including pennsylvania sedge, slender mountain mint, blue flag iris, sweet azalea, smooth hydrangea, and maple-leaved viburnum. [gallery link="none" ids="13427,13421,13428"] The plants will help reduce stormwater flow, absorb excess nutrients, prevent erosion, and ultimately decrease sedimentation to the pond, while creating a visually pleasing addition to the park and providing a habitat for pollinators and birds. Overall, this project promotes a healthier and more balanced ecosystem in Memorial Park. [gallery link="none" ids="13400,13392,13394"] The photos above were taken in July 2023 immediately after the planting initiative. Multi-Faceted Approach to Water Quality Improvements The installation of these beneficial plants is part of a series of water quality initiatives on Lake Hopatcong funded by a NJDEP Freshwater Harmful Algal Bloom (HAB) Prevention & Management Grant and 319(h) Grant awarded to Lake Hopatcong Commission in partnership with the Lake Hopatcong Foundation. Additional initiatives included in the watershed implementation and HABs management plan are, the installation of:
400 native plants were installed along the western shoreline of Memorial Pond in Mount Arlington, New Jersey. The planting was completed in one day by a team of 20+ volunteers, staff members from Mt. Arlington Department of Public Works (DPW), Lake Hopatcong Foundation, Lake Hopatcong Commission, Princeton Hydro, and a generous community member who volunteered his excavating equipment (and time).
The planting initiative aims to prevent shoreline erosion, promote the growth of native species, increase wildlife habitat, and improve the water quality of Memorial Pond and Lake Hopatcong. Funding for this project was secured through a grant from the New Jersey Department of Environmental Protection, awarded to the Lake Hopatcong Commission in partnership with the Lake Hopatcong Foundation.
Memorial Pond is a 0.3-acre stormwater runoff basin that gradually releases into Glen Brook, which then flows into Lake Hopatcong. The pond receives sheet flow of stormwater from the adjacent road, which contributes to nutrient and sediment loading, thus locally reducing water quality in Memorial Pond and ultimately the waters of Lake Hopatcong.
Memorial Park, which includes Memorial Pond and Glen Brook, was identified by Princeton Hydro and the Lake Hopatcong team as a priority site for improvement, targeting initiatives that reduce pollutants and excessive nutrients entering into Lake Hopatcong.
Additionally, the pond’s steeply-sloped shoreline was bare and only stabilized with large rocks at the base of the banks. In the absence of stabilizing vegetation, the pond’s banks were experiencing erosion, and there was some concern about a few mature trees along the shoreline potentially falling into the pond.
The photos above were taken in April 2023 before the planting initiative.
The plant selection and layout were designed taking into account the steep slope and presence of mature, existing trees as well as focusing on regionally native plant species that will thrive and help stabilize the eroding shoreline. The planting team, led by Princeton Hydro Landscape Architect Jamie Feinstein, RLA and Aquatics Project Manager Pat Rose, was given precise instructions on how to install the plants to eliminate washouts and ensure the root systems can embrace the soil and hold it in place.
A variety of native herbaceous plants and shrubs were chosen for the site, including pennsylvania sedge, slender mountain mint, blue flag iris, sweet azalea, smooth hydrangea, and maple-leaved viburnum.
The plants will help reduce stormwater flow, absorb excess nutrients, prevent erosion, and ultimately decrease sedimentation to the pond, while creating a visually pleasing addition to the park and providing a habitat for pollinators and birds. Overall, this project promotes a healthier and more balanced ecosystem in Memorial Park.
The photos above were taken in July 2023 immediately after the planting initiative.
The installation of these beneficial plants is part of a series of water quality initiatives on Lake Hopatcong funded by a NJDEP Freshwater Harmful Algal Bloom (HAB) Prevention & Management Grant and 319(h) Grant awarded to Lake Hopatcong Commission in partnership with the Lake Hopatcong Foundation.
Additional initiatives included in the watershed implementation and HABs management plan are, the installation of:
floating wetland island (FWI), which are a low-cost, effective green infrastructure solution designed to mimic natural wetlands in a sustainable, efficient, and powerful way. FWIs improve water quality by assimilating and removing excess nutrients; provide valuable ecological habitat for a variety of beneficial species; help mitigate wave and wind erosion impacts; provide an aesthetic element; and add significant biodiversity enhancement within open freshwater environments;
biochar filtration bags, which improve water quality by removing phosphorus from waterbodies. Biochar can be placed in floatation balls, cages, or sacks, which are then tethered along the shoreline and in critical locations throughout the waterbody; and
nanobubble aeration system, which increases the concentrations of dissolved oxygen in the water, prevents stagnation of water, increases circulation, disrupts thermal stratification which provides “through-column” mixing, and minimizes the occurrence of HABs.
“Paired with biochar filters attached to buoys in the pond and continued monitoring and maintenance of the plantings by the DPW, these steps will set a healthy precedent for what can be achieved through working together with funders, local partners, science, and landscape architecture,” said Feinstein, who sourced plant material, provided logistics and co-led the planning and volunteer planting event along with Rose.
Princeton Hydro's Landscape Architect, Cory Speroff PLA, ASLA, CBLP, designed the planting plan, and Will Kelleher and Jackson Tilves from the Aquatics Team participated in the plant installation event with Feinstein.
Princeton Hydro is also authoring and supplying a maintenance manual that provides guidance on seasonal care of the plantings, when to remove the herbivory protection fencing, pruning, watering, and other activities that support the long term success of the planting initiative.
“This collaborative effort to enhance water quality serves as a prime example of how seemingly simple actions can have a meaningful impact on safeguarding our water resources for the benefit of future generations,” said the Lake Hopatcong Foundation.
The photos above from left to right: June 2023 before the planting; July 2023 during the planting (photo by Lake Hopatcong Foundation Executive Director Kyle Richter); and July 2023 immediately after the planting.
Princeton Hydro has been working on Lake Hopatcong, New Jersey’s largest Lake, for 30+ years, restoring the lake, managing the watershed, reducing pollutant loading, and addressing invasive aquatic plants and nuisance algal blooms. To read about some of the other projects we’ve recently worked on at Lake Hopatcong, click here.
Thousands of native flowering plants and grasses were planted at Thompson Park in Middlesex County, New Jersey. Once established, the native plant meadow will not only look beautiful, it will reduce stormwater runoff and increase habitat for birds, pollinators, and other critical species.
The planting was completed by community volunteers along with Eric Gehring of Kramer+Marks Architects, Middlesex County Youth Conservation Corps, Rutgers Cooperative Extension of Middlesex County, South Jersey Resource Conservation and Development Council, and Princeton Hydro Landscape Architect Cory Speroff, PLA, ASLA, CBLP.
All of the plants that were installed are native to the north-central region of New Jersey. Volunteers planted switchgrass (panicum virgatum), orange coneflower (rudbeckia fulgida), blue wild indigo (baptisia australis), partridge pea (chamaecrista fasciculata), Virginia mountain mint (pycnanhemum virginianum), and aromatic aster (symphyotrichum oblongifolium). In selecting the location for each of the plants, special consideration was given to each species' drought tolerance and sunlight and shade requirements. The selected plant species all provide important wildlife value, including providing food and shelter for migratory birds.
The planting initiative is one part of a multi-faceted Stormwater Treatment Train project recently completed in Thompson Park. The project is funded by a Water Quality Restoration 319(h) grant awarded to South Jersey Resource Conservation and Development Council by the NJDEP.
Middlesex County Office of Parks and Recreation and Office of Planning, NJDEP, South Jersey Resource Conservation and Development Council, Middlesex County Mosquito Extermination Commission, Freehold Soil Conservation District, Rutgers Cooperative Extension, Enviroscapes, and Princeton Hydro worked together to bring this project to fruition.
To learn more about the Thompson Park Zoo stormwater project, check out our recent blog:
Volunteers recently came together in Asbury Park, New Jersey to install floating wetland islands (FWIs) in Wesley Lake and Sunset Lake. The initiative, led by the Deal Lake Commission and Princeton Hydro, brought together dozens of volunteers to install a total of 12 FWIs, six in each lake.
[gallery link="none" ids="8935,8936,8934"]
Photos by Donald Brockel
FWIs are a low-cost, effective green infrastructure solution used to mitigate phosphorus and nitrogen stormwater pollution. FWIs are designed to mimic natural wetlands in a sustainable, efficient, and powerful way. They improve water quality by assimilating and removing excess nutrients that could fuel harmful algae blooms; provide valuable ecological habitat for a variety of beneficial species; help mitigate wave and wind erosion impacts; provide an aesthetic element; and add significant biodiversity enhancement within open freshwater environments.
Volunteers install plants in one of the six floating wetland islands launched in Wesley Lake:
The Deal Lake Commission acquired the 12 FWIs through a Clean Water Act Section 319(h) grant awarded by the New Jersey Department of Environmental Protection. During the volunteer event, participants helped plant vegetation in each of the FWIs, and launch and secure each island into the lakes.
We collected so many great photos during the event. Here are some highlights:
[gallery link="none" columns="2" ids="8950,8939,8943,8942,8946,8944,8945,8954,8941,8923"]
NBC New York’s Brian Thompson stopped by to lend a hand and captured footage of the floating wetland island launch. Click here to watch!
To learn more about Floating Wetland Islands, check out the recent Native Plants, Healthy Planet Podcast, which featured Dr. Jack Szczepanski, CBLP, Princeton Hydro Senior Aquatic Ecologist.
Volunteers recently gathered together at Clawson Park in Ringoes, NJ to install native plants in the park’s large stormwater basin and overhaul two of the park’s rain gardens, removing invasive weeds and planting beneficial native species.
By definition, a rain garden is a shallow depression that is planted with deep-rooted native plants and grasses and positioned near a runoff source to capture rainwater. Rain gardens temporarily store rainwater and runoff, and filter the water of hydrocarbons, oil, heavy metals, phosphorous, fertilizers and other pollutants that would normally find their way to the sewer and even our rivers and waterways. They are a cost effective, attractive, and sustainable way to minimize stormwater runoff. They also help to reduce erosion, promote groundwater recharge, and minimize flooding. Planting native plants helps to attract pollinators and birds and naturally reduces mosquitoes by removing standing water thus reducing mosquito breeding areas.
Once a rain garden has been established, it is low maintenance and typically only requires occasional weeding to remove any invasive species that may have cropped up. The recent volunteer effort, lead by Jack Szczepanski, PhD, Senior Aquatics Scientist, was an important step in maintaining the health and native diversity of Clawson Park’s rain gardens.
The park’s rain gardens and stormwater basins were originally designed and implemented by Princeton Hydro. Back in 2016, Eagle Scout Brandon Diacont had an idea to beautify Clawson Park and improve the park’s stormwater drainage issues. Princeton Hydro supported his vision by developing, permitting, and implementing a stormwater management project plan, which included the installation of multiple rain gardens throughout the park. In October of 2016, under the guidance of Princeton Hydro’s Landscape Designer Cory Speroff, MLA, ASLA, CBLP, a great group of volunteers gathered together and got to work bringing the project plan to life!
The Princeton Hydro team has designed and constructed countless stormwater management systems, including rain gardens in locations throughout the Eastern U.S. Click here for more information about our stormwater management services.
A volunteer effort, lead by the Middlesex County, New Jersey Parks and Recreation Department and the Rutgers Cooperative Extension, recently took place at Thompson Park.
Despite the rainy weather, 78 volunteers and members of the Youth Conservation Corps removed litter from the shoreline of Manalapan Lake, repaired fencing, made improvements to the park’s walking trails, weeded and mulched the park’s rain garden and native plant garden, and installed new plants in the rain garden.
The park’s rain garden was originally designed by Princeton Hydro Senior Water Resource Engineer Dr. Clay Emerson, PE, CFM. Rain gardens are cost effective, attractive and sustainable means to minimize stormwater runoff. They also help to reduce erosion, promote groundwater recharge, minimize flooding and remove pollutants from runoff.
By definition, a rain garden is a shallow depression that is planted with deep-rooted native plants and grasses, and positioned near a runoff source to capture rainwater. Planting native plants also helps to attract pollinators and birds and naturally reduces mosquitos by removing standing water thus reducing mosquito breeding areas.
Rain gardens temporarily store rainwater and runoff, and filter the water of hydrocarbons, oil, heavy metals, phosphorous, fertilizers and other pollutants that would normally find their way to the sewer and even our rivers and waterways.
On the day of the volunteer event, Central New Jersey received 0.44 inches of rain. "We got to see the rain garden in action, which was really exciting," said Princeton Hydro Senior Project Manager Kelly Klein, who volunteered at the event.
Volunteers from the following organizations participated:
The Middlesex County Parks and Recreation Department’s next public volunteer event is tomorrow (June 2) in Davidson’s Mill Pond Park.
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