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Friday, March 22, 2013

Retrofit planned for stormwater basin in Annandale

Fairfax County plans to expand the capacity of a stormwater detention basin on Ravensworth Road in Annandale. Construction is scheduled to start this spring.

The facility is in a Resource Protection Area between St. Michael’s Catholic Church and the Saint Rose of Lima Retirement Villa, a retirement home for priests operated by the Catholic Diocese of Arlington.

The county will do a standard basic retrofit of the basin and add micro-pools, said Fred Wilkins, project manager in the Stormwater Planning Division in the Fairfax County Department of Public Works and Environmental Services.

“The basin has been there a lot longer than the development around it, so the pools are being added to improve water quality,” Wilkins said. The shallow, permanent pools will collect and filter storm runoff from the surrounding drainage area and filter the water before it enters Cameron Run, which is part of the Accotink watershed.

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