Rosedale Landscape Depot
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EPA Project Manager
Luis A. Pizarro
U.S. Environmental Protection Agency Region 3
Mail Stop: 3LC20
1650 Arch Street
Philadelphia, PA 19103-2029
Maryland Department of the Environment
Mr. Omer Mir
1800 Washington Blvd., Suite 645
Baltimore, MD 21230-1719
Phone: (410) 537-3400
- The State Highway Administration (SHA) Rosedale Landscape Depot site is located in Rosedale, Baltimore County, Maryland. During past activities at the facility, twenty-two drums of herbicide/pesticide residue were stored on the property. Over time, these drums deteriorated and, when discovered later in 1984, the partially buried drums had released dioxin contamination (specifically 2,3,7,8-tetrachlorodibenzo-p-dioxin or 2,3,7,8-TCDD) over approximately 1/3 of an acre. The dioxin contamination found in the soils was generated as an unwanted by-product during the herbicide manufacturing process. The contaminated soil and remaining drums were removed, confirmation soil samples were taken and a protective, multi-layer cap was placed over the former disposal area to prevent any exposure from residual contamination. Approximately 500 tons of soil and solid materials were removed from the area.
- At the time of the excavation, there was not an approved method for disposing of the dioxin- contaminated materials. Therefore, the drums of waste needed to be stored on-site until an alternative could be found. From 1984 to 1988, the drums were stored in temporary containers. SHA determined that a more permanent storage facility was needed for the potential long-term storage of the drums of waste. As a result, a 7,200 square foot storage building with secondary containment was constructed at the facility to more safely house the waste. The SHA received a Maryland state permit to store the hazardous waste in the containment building and performed weekly inspections of the area to ensure no contaminants were being released to the environment. In November 1994, an approved disposal facility for dioxin was located and all dioxin wastes were transported to the company for proper treatment and disposal. SHA proceeded with the clean-closure of the Hazardous Waste Storage building and received approval from the Maryland Department of the Environment in 1995. The building is now used as a maintenance shop and storage.
- In the fall of 2000, EPA and SHA reconfirmed that no unacceptable releases have occurred at the facility by taking additional groundwater samples around the former disposal area. Based on this information and the past removal activities, EPA issued a final Agency determination of Corrective Action Complete with Controls. This determination documents that no further corrective action activities are necessary at this time, as long as SHA continues to maintain and annually inspect the existing multilayer cap. EPA and SHA negotiated an agreement (referred to as a Corrective Measures Implementation Agreement) in March 2003 to implement these remaining requirements and ensure long term protection of human health and the environment. SHA submits an Annual Certification report to EPA to document that the existing cap remains in place. As an added measure of long term protectiveness, SHA has placed a notice in the deed for the property that informs any future potential buyers of the residual subsurface contamination. The recording reference for the Deed Notice is 19712/173. It was recorded on March 9, 2004.
- The Maryland State Highway Administration, Rosedale Landscape Depot facility is located in Rosedale, Maryland, approximately 3,000 feet west of the Route 40 and I-695 interchange outside of Baltimore. The Landscape Depot site is approximately 3.5 acres, while the previously contaminated area of interest occupies 1/3 acre of that space. The land use in the area is mixed residential, agricultural and light commercial.
- EPA requested comments from the public on the proposed Agency determination of Corrective Action Complete with Controls. The public comment period lasted forty-five calendar days. Only one comment was received from SHA with minor changes to the proposal.
- In the past, the main contaminant in the soil was dioxin or 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD). SHA has completed extensive excavation to remove the contaminated soil in 1984 and the area has been covered with a multi-layer cap.
- SHA has placed a notice in the deed for the property that informs any future potential buyers of the residual subsurface contamination. The recording reference for the Deed Notice is 19712/173. It was recorded on March 9, 2004.
- Some of the site’s key documents of interest are accessible below:
- Environmental Indicator Determination - Human Exposures [PDF, 9 pages, 40 KB, About DF]
- Environmental Indicator Determination - Groundwater [PDF, 8 pages, 25 KB, About PDF]
- All documents and reports regarding this facility also can be reviewed in person at these locations:
U.S. EPA Region III
Land & Chemicals Division - RCRA
1650 Arch Street-11th Floor
Philadelphia, PA 19103
Call for an appointment.
- Submit a FOIA Request
Get instructions on how to submit a FOIA request. Additional fee for requests over 100 pages.
|Rosedale Landscape Depot||Rosedale Landscape Depot GeoSpatial PDF [PDF, 1.24 MB, 1 pages About PDF]|
Click on a thumbnail to enlarge the photo or GeoSpatial PDF )
- The facility is under continued use.
- The EPA is dedicated to providing you with timely and accurate information about our work at this site. If you have any questions or concerns, please contact the EPA Project Manager: Luis A. Pizarro (215)-814-3444.