The Chesapeake Bay Foundation has called on Maryland, Virginia and Pennsylvania to better control stormwater runoff and improve the region’s environment, economy and health.
Image courtesy brianjmatis/Flickr
Made worse by urban and suburban development, stormwater runoff is the fastest growing source of pollution in the Chesapeake Bay. Once precipitation falls onto streets, sidewalks and lawns, it can pick up trash, oil and other pollutants before entering storm drains, rivers and streams. Each year, stormwater runoff contributes to fish mortalities and beach closures across the watershed.
In a report released this week, the Bay Foundation pushes watershed states to implement stronger pollution control permits alongside “cost-effective, common-sense projects” that will help cities meet the pollution limits outlined in the Chesapeake Bay Total Maximum Daily Load (TMDL), or pollution diet. Planting trees, building roadside rain gardens and installing green roofs have been proven to reduce stormwater runoff—and can often be done at lower costs than some initially estimate.
The Bay Foundation cites several cases to illustrate this point. Frederick County, Maryland, for instance, used natural vegetation rather than pipes, culverts or other structural solutions to filter polluted runoff, and reduced its projected pollution control costs by 65 percent. A University of Maryland Environmental Finance Center analysis found that Calvert County, Maryland, initially over-estimated its stormwater control costs; by installing more efficient pollution control methods and offering private business owners incentives to reduce runoff on their own properties, the county could meet their cleanup goals at a cost that was 96 percent lower than projected.
“This is a local problem requiring local solutions that will provide significant local benefits,” said Bay Foundation President William C. Baker in a media release. “But there are important roles for… governments in tackling the challenges of polluted runoff.”
At sunrise, the Roughwater heads out of its Solomons Island harbor and onto the Patuxent River. Driven by a captain who has worked the Chesapeake Bay for two decades, the boat stops over an unseen reef. Simon Dean and his crew—Brian Elder and Jason Williams—are wearing waterproof bibs and white rubber boots, and are ready to bring in oysters.
Known as patent tonging, the work that takes place on the Roughwater moves in one fluid motion: hydraulic tongs enter the water, grab a mess of oysters and dump them with a crash onto a metal culling table. Three-inch grooves built into the table’s edge help the crew cull, or sort the oysters by size. Good oysters are tossed into a plastic basket, while too-small bivalves and empty shells go back overboard.
The patent tongs are controlled by foot pedals: one pushes the tongs up and down, while the other swings them open and closed. “At the end of the day, your feet are more tired than your hands,” Dean said.
As a waterman, Dean’s work is dependent on the seasons. During the winter, he oysters. During the summer, he crabs and takes fishing parties out on the Bay. He bought the Roughwater in 2009, and was “running everybody else’s boat before that.”
Wooden-handled culling hammers help Dean and his crew knock undersized oysters off of bigger bivalves. Young oysters attach themselves to adults in order to grow, forming dense reefs that offer habitat to fish, crabs and other critters. While concrete is often used to construct artificial reefs, shell makes the best substrate for spat.
Watermen must work to “get as much shell off as you can,” Dean said. In part, this is because buyers prefer the look of a clean oyster. And in part, it is because shell must go back into the Bay, where it will provide a new place for young oysters to settle.
In an effort to restore natural oyster populations to the Bay, shell recycling programs have popped up across the region and lawmakers have established oyster sanctuaries and strengthened harvesting restrictions. But this seems to have fueled tension between states and the industry and fed the belief that watermen often work in conflict with the law.
Dean and his wife, Rachel, are working to change this oft-held perception, using heritage tourism to teach both children and adults about estuarine life and the role that watermen play in the region’s history and economy. “We’re not poachers. We’re not outlaws. We’re not thieves,” Dean said. And he hopes that Solomons Island Heritage Tours will “break down that stigma that watermen have [against them].”
Dean and his crew don’t have time for conversation while the tongs are running. Dean thinks about how he will sell his oysters, and how he will compete with other watermen. By the end of the day, they have reached their patent tonging limit: 15 bushels per license, with two licenses per boat. Dean will sell some of these to restaurants and some to individuals. But will he ever keep any for himself? “I like them,” Dean said. But when it comes to eating them, “I just don’t have time.”
To view more photos, visit the Chesapeake Bay Program Flickr page.
Images by E. Guy Stephens/Southern Maryland Photography.
Captions by Catherine Krikstan.
The reduction of power plant emissions in the mid-Atlantic has improved water quality in the Chesapeake region, according to new research from the University of Maryland Center for Environmental Science (UMCES).
Image courtesy haglundc/Flickr
Researchers at the university’s Appalachian Laboratory have traced improvements in the water quality trends of nine forested watersheds located along the spine of the Appalachian Mountains to the Clean Air Act’s Acid Rain Program. Passed in 1990, the Acid Rain Program led to a 32 percent drop in human-caused nitrogen-oxide emissions in 20 states. As these emissions have declined, so too has the amount of nitrogen found in some Pennsylvania, Maryland and Virginia waterways.
In other words, while the Acid Rain Program only intended to reduce the air pollution that causes acid rain, it had the unintended consequence of reducing the amount of nitrogen oxide particles landing on the region’s forests, thus improving local water quality.
“Improvements in air quality provided benefits to water quality that we were not counting on,” said UMCES President Donald Boesch in a media release.
Once nitrogen oxide particles are emitted into the air, wind and weather can carry them long distances. In time, these particles fall onto the land or into the water. Nitrogen that enters rivers and streams can fuel the growth of algae blooms, which block sunlight from reaching underwater grasses and create low-oxygen “dead zones” that suffocate marine life. Scientists estimate that just over one-third of the nitrogen polluting the Bay comes from the air.
People often feel helpless when confronting the environmental concerns that face us today. They want to know, in simple and straightforward terms, what they can do to help. In the Chesapeake Bay watershed, the answer lies in our work to reduce the flow of nutrients and sediment into our waterways.
While we have made great strides in upgrading nutrient-removal technology at wastewater treatment plants, controlling power plant and automobile exhaust emissions, and putting conservation practices in place on area farms, we have not made as much progress in reducing stormwater runoff from homes and businesses. Rainfall continues to run across rooftops, driveways and lawns, picking up pollutants before it enters storm drains, rivers and streams. And we continue to look for ways to encourage homeowners to reduce their stormwater discharges.
Image courtesy Wisconsin Department of Natural Resources/Flickr
Environmental regulations have not focused on runoff from homes because these pollution sources are too small, diffuse and numerous to manage effectively and efficiently. But the Chesapeake Bay Program is developing a system that will give homeowners credit for reducing their runoff and helping their communities meet the goals of the Total Maximum Daily Load (TMDL), or Bay “pollution diet.” More than 30 stakeholders worked through the Chesapeake Stormwater Network to develop this crediting program, which will respond to the needs of both homeowners and government agencies and provide an accurate mechanism for verifying residential best management practices.
Rain barrels, rain gardens and permeable pavement are just some of the tools that can help a homeowner manage runoff and add color and character to his property. But it is important for us to ensure that these practices are installed correctly to reduce pollution over time. So a guide is in production that will show homeowners how to design, construct and maintain different practices, and an online tool will allow them to add their practices to a website, where the data will be checked and pollution reductions will be calculated.
Training and certification programs are being planned. Smart phone apps are being developed. And this initiative appears to be catching on among homeowners and in communities across the watershed, where people see it as an opportunity to improve their neighborhood, increase their property values and make a positive impact on their local environment and the water quality of the Bay.
Note: The opinions expressed above are those of the author and do not necessarily reflect U.S. EPA policy, endorsement, or action.