According to the United States Census Bureau, the Mantua CDP has a total area of 2.4 square miles (6.2 km2), of which 0.023 square miles (0.06 km2), or 0.91%, is water.[5]Accotink Creek, a tributary of the Potomac River, flows through the northern part of the CDP, and Crook Branch, a tributary of Accotink Creek, flows through the southern part.
History
Texaco oil leak
An oil distribution plant, located 2,000 feet (610 m) west of the community along Pickett Road in Fairfax City, was found in 1990 to have leaked approximately 200,000 gallons (approximately 4,700 barrels) of petroleum into 22 acres (0.089 km2) of the soil and groundwater of the Crook Branch watershed.[6][7]: 4 At the time, the distribution plant was owned in part by a subsidiary of Texaco.[7]: 4 The oil leakage may have occurred over up to twenty-five years,[8] as the distribution plant had opened in April 1965.[6][9]: 96 Four families were evacuated,[8] and approximately 100 homes were connected to public water and sewer lines.[10] The Environmental Protection Agency (EPA) directed the installation of a "pump-and-treat" groundwater remediation system, which was augmented in 2000 by digging of horizontal infiltration wells, intended to wash contaminated groundwater into the remediation system.[6]Storm sewers in the area were checked for leaks and relining was performed to prevent further contamination of surface water.[7]: 9 By 2013, a four-year temporary shutdown test had shown that benzene vapor intrusion in homes directly above the contaminated groundwater plume did not exceed the screening limit,[11] and that groundwater contamination east of the distribution plant had fallen to levels controllable by natural degradation. The offsite remediation system was removed by 2016, but cleanup at the distribution plant is ongoing.[6] The oil distribution plant remains in operation as of 2023 using nine reinforced[7]: 6 [9]: 106 surface tanks,[6] despite objections that community members[12] and a task force appointed by Governor L. Douglas Wilder[10] had raised at the time the leak was being investigated. All underground tanks have since been removed and piping for trucks to discharge oil residual into at the loading rack was installed in 1991:[7]: 6 both the underground tanks and the loading rack had been suspected sources of the leak.[10] Groundwater in the Crook Branch watershed continues to be tested annually by the EPA and storm sewers are inspected for cracks.[11]
As of the 2010 census, there were 7,135 people, 2,628 households, and 1,936 families residing in the CDP. The population density was 3,031.0 people per square mile. There were 2,766 housing units at an average density of 716.3 per square mile (276.6/km2). The racial makeup of the CDP was 73.5% White, 19.7% Asian, 2.6% African American, 0.3% Native American, 1.2% from other races, and 2.7% from two or more races. Hispanics and Latinos of any race were 6.2% of the population.[14]
The median age was 46.1 years. 25.6% of the population was under the age of 18, 6.3% was 18 to 24, 18.6% was 25 to 44, 31.7 was 45 to 64, and 17.8% were 65 years of age or older. The gender makeup of the community was 48.2% male and 51.8% female.[14]
The median income for a household in the CDP was $112,008. About 3.8% of families and 5.2% of the population were below the poverty line, including 6.6% of those under the age of 18 and 7.2% of those 65 and older.[14]
Education
Primary and secondary schools
Public schools
The Mantua/Frost/Woodson School Pyramid is highly desired. Mantua's former principal, Jan-Marie Fernandez, was awarded the "2010 National Distinguished Principal for Virginia" and Woodson HS is ranked #280 in U.S. News & World Report's National Rankings.[15]
