Municipal Engineering

Fairfax County, Virginia

Design and processing of a Minor Site Plan that included a 1,096 square foot addition to the existing bar screen building, the construction of a new 454 square foot methanol building, the construction of a new 1,950 square foot blower buildings the construction of a state-of-the-art Moving Bed Biofilm Reactor (MBBR) facility, and all supporting infrastructure at the existing wastewater treatment plant. The design considered impacts to ongoing plant operations to avoid disruptions while minimizing disturbance.

Prince William County, Virginia

RDA provided all site design, including grading plans, entrances, internal roadways, pumping stations, extension of sanitary sewer lines, etc, and the site plan submissions and coordination with the County to resolve Chesapeake Bay and stormwater management issues – RDA provided documentation to support a floodplain waiver and waiver of the Chesapeake Bay Resource Management Area (RMA) stormwater nutrient discharge limitations. RDA also prepared an environmental Assessment (EA) and assisted with the public meeting in order to obtain VDEQ approval of funds from the State Revolving Loan Account. RDA also provided wetland and RPA delineations, perennial flow determinations for three streams.