Environmental Sample Projects
- The H.L. Mooney Water Reclamation Facility
Prince William County, Virginia In addition to all site design, RDA is coordinating with the County to resolve Chesapeake Bay and stormwater management issues—RDA is providing documentation to support a floodplain waiver and waiver of the Chesapeake Bay Resource Management Area (RMA) stormwater nutrient discharge limitations. RDA also prepared the Environmental Assessment (EA) and assisted with the public meeting in order to obtain VDEQ approval of funds from the State Revolving Loan Account. We have also provided wetland and RPA delineations, perennial flow determinations for three streams, and will prepare the Joint Permit Application if necessary. The upgrades and expansion are needed to meet the new Chesapeake Bay Potomac Embayment mass limits standard, as well as to allow the plant to obtain its Certificate to operate at 24 MGD. The Mooney WRF will need to meet a concentration of 3 mg/L nitrogen as of January 1, 2010. They are currently meeting a discharge concentration of 8 mg/L.
- James Madison Highway (Route 15)
Prince William County, Virginia
In addition to providing survey and roadway design services, RDA is providing wetland delineation, permitting, and mitigation design services for the widening of US Route 15 between Dominion Valley Road and Waterfall Road in Haymarket, VA, and has provided an environmental site assessment to identify properties where contamination may be an issue. RDA was able to locate and assemble several existing wetland delineations done by other consultants for parcels of property along the route, and use these delineations to reduce our time in the field for a considerable savings to the County. We are also providing the preliminary coordination with the Virginia Departments of Historic Resources, Game and Inland Fisheries, and Conservation and Recreation to determine potential cultural resources and threatened and endangered species issues. We are preparing the Joint Permit Applications and mitigation plans, and will respond to any issues as they arise. The ESA addressed over 50 properties potentially impacted by the widening.
- North Lynn Street Esplanade
Arlington County, Virginia
As part of the Toole Design team for the North Lynn Street Esplanade project in Rosslyn (Arlington County, VA), RDA is providing an environmental assessment (EA) consistent with the National Park Service (NPS) Director’s Order #12 and the President’s Council on Environmental Quality’s National Environmental Policy Act (NEPA) implementation regulations for those improvements that would occur on NPS properties within the project area. Arlington County is planning a number of measures, including: the realignment of highway on- and off-ramps from the George Washington Memorial Parkway and Interstate Route 66; the realignment of pedestrian / bicycle trails; creation of an pedestrian overlook area; new signage; and new landscape plantings on NPS properties at the intersection of North Lynn Street in Rosslyn with the Francis Scott Key Bridge to the Georgetown portion of the District of Columbia. Key issues are the impacts of the improvements on the historic landscape of the George Washington Memorial Parkway, and on the views from other National Register eligible properties in Virginia and the District. If needed, the EA effort would expand to VDOT/FHWA issues, as well.
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