oronoco outfall remediation project progress report...backfilling of clean sand in progress. dredge...
TRANSCRIPT
City of Alexandria, Virginia
Oronoco Outfall Remediation Project
Progress Report
March 5, 2018
Alexandria Town Gas Site
2
1930s
Oronoco St. today
Oronoco OutfallAt foot of Oronoco St.
Area Overview
3
Lee St. SquareFormer ATG site
Robinson Terminal
Oronoco Outfall
Voluntary Remediation Program
(VRP)
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-Boom installed at the Oronoco St. storm sewer outfall.
-Free Product Recovery wells installed
-Oronoco St. Storm Sewer Pipe relined
-BioSparge Groundwater Treatment System installed
-Dredging and Capping project.
Dredge and Capping Project
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▪ 3000 CY of contaminated sediment
dredged and removed.
Dredge and Capping Project
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▪ Backfilling of clean sand in progress.
Dredge and Capping Project
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▪ Reactive cap to be installed around the
Oronoco St. storm sewer outfall.
Storm Sewer Pipe Repair
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Anticipated to be completed in March, 2018.
Project Schedule
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Contacts:
Tafesse T. Gyes, P.E.
Department of Project Implementation
City of Alexandria, Virginia
703.746.4051
Lisa Goldberg
Office of Environmental Quality
City of Alexandria, Virginia
Telephone: 703. 746.4076
Questions
10