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More than 450,000 brownfields have been identified by the EPA in the U.S. for redevelopment and reuse, one of which is the South River within the City of Waynesboro. Previously owned by Dupont, the river and surrounding areas have been impacted by industrial practices and presence of hazardous substances, pollutants and contaminants. In conjunction with […]
Flocculant treatment systems have become common practice across the US and globally. This is due to the versatility and effectiveness of anionic polyacrylamide (PAM) and PAM enhanced BMPs and technologies. PAM has been used in agriculture since the 1950s, mining and water treatment since the 1970s, and in the 1990s was introduced to the erosion […]
The City of Alexandria, Virginia is a highly urbanized City with approximately 160,000 people living in 15.3 square miles, and approximately 48% of the land area is considered impervious. The City currently maintains over 300 miles of roadways and 430 miles of sidewalks, most of which have no water quality treatment or quantity controls. The […]
The City of Virginia Beach converted a man-made borrow pit, formerly referred to as Whitehurst Lake, into a Dredged Material Management Area (DMMA). The intent was to provide a long- term disposal site for dredging projects throughout the City of Virginia Beach. The DMMA has been used for the disposal of dredged material from various […]
The concentration of organic matter (i.e., naturally or anthropogenic-derived carbon-based compounds) is an important water quality metric for drinking water managers because of its numerous effects on water quality, necessitating new and improved strategies for monitoring our freshwaters. Here, we studied two types of organic compounds in a Virginia drinking water reservoir. First, pharmaceutical and […]
Aquatic Informatics’ presentation will focus on the modernization of stormwater data management and the importance of data in managing flood events. We will highlight the experiences of two different regions, the City of Orlando in the Southeast coastal region of the US and the Toronto and Region Conservation Authority (TRCA) in Ontario, Canada. The presentation […]
Whenever someone asks us what the stormwater management requirements will be on their upcoming project, our immediate response is “Where’s the project and what’s the total land disturbance?”. So, you might be thinking, “What exactly is so disturbing?”. Well, while the amount of land that’s disturbed during a project is a critical component to control […]
Loudoun County is regulated under the NPDES Phase II MS4 permit, which includes six (6) Minimum Control Measures (MCMs) to control stormwater pollution and manage water quality. The stormwater team at the Department of General Services provides oversight for these MCMs. One of the MCMs is the Illicit Discharge, Detection and Elimination (IDDE) program, which […]
This presentation takes the audience on a captivating voyage through time to experience the evolution of stormwater best management practices (BMPs) in Virginia. Beginning with the creation of Virginia’s first known water management practices, it details the events leading to the development and expansion of pivotal regulations and the Virginia Stormwater Management Program (VSMP). […]
The Clean Air Act Amendment in 1990 has been successful in limiting sulfate atmospheric deposition, but sulfate stream concentrations remain high, particularly in unglaciated regions. There are several anthropogenic sources of stream sulfate, including building materials, road salt, septic systems, and agriculture. Beyond acidification, sulfate fluxes have ecological consequences for nutrient cycling through mobilizing phosphate. […]
The Virginia Lakes and Watershed Association is a volunteer organization and its mission is to provide education on water resources in Virginia.
