Hazardous Waste Cleanup: Rolls-Royce - Indianapolis, Indiana
- Latest News
- Cleanup Status
- Site Description
- Contaminants at this Facility
- Institutional/Engineering Controls
- Land Reuse
- Site Responsibility
Latest News
- Administrative Record
- Vapor Intrusion Investigation Factsheet, August 2021
- Statement of Basis
- Virtual Public Meeting video best viewed in full screen mode.
Congress amended the Resource Conservation and Recovery Act (RCRA) in November 1984, expanding the Act's cleanup provisions and prompting U.S. Environmental Protection Agency and its state partners to develop the RCRA Corrective Action Program. The program oversees the investigation and cleanup of nearly 4,000 potential hazardous waste sites with RCRA liability across the country, including many with risks comparable to Superfund sites.
The Rolls-Royce facility is a turbine engine manufacturing facility that is located on two industrial properties in Indianapolis: Plant 5 and Plant 8. The EPA issued a Statement of Basis on November 16, 2020 explaining the agency’s proposed remedy to address contaminated soil and groundwater as part of its public participation responsibilities under RCRA. EPA is seeking comments from the public on the proposed remedy.
Cleanup Status
Rolls-Royce conducted a RCRA Facility Investigation (RFI) at Plants 5 and 8 between October 2001 and April 2003. The RFI included soil, sediment, groundwater, surface water, borehole water, and biota sampling. A total of 42 Areas of Interest, commonly referred to as AOIs or areas, were investigated to determine whether any significant release of materials that are hazardous to the environment had occurred. Based on the results of the initial phase of the RFI field effort, Rolls-Royce conducted three additional phases of field investigation to fully characterize the nature and extent of the releases identified. Constituents detected above relevant soil and/or groundwater screening criteria included a variety of chlorinated volatile organic compounds, or CVOCs; petroleum hydrocarbons and metals were also reported in facility soil and groundwater. The investigation also determined that CVOC contamination was migrating off-site to the south in groundwater.
Short-term measures have been completed in several areas of the facility to remove and control sources of contamination. Air sparging and soil vapor extraction systems were operated at eight areas to reduce the CVOC mass in soil and groundwater within the upper sand and gravel unit. Soil was also excavated in the former underground storage tanks area to address a release of mercury. As a result, approximately 100 tons of excavated soil was disposed at an off-site landfill.
In April 2019, soil gas sampling in the southwest area of the facility and in an adjacent residential neighborhood confirmed that TCE and PCE were present in soil gas. At that time, the contaminants were detected at levels below the risk-based screening criteria for those compounds and EPA concluded that there were no potentially significant vapor intrusion exposures to residents in the neighborhood south of the facility. Rolls-Royce conducted additional soil gas sampling in 2020 and 2021 to monitor conditions in the neighborhood and further evaluate potential risk at the facility. The results of this more recent sampling now show the potential for vapor intrusion exists in the neighborhood and at the facility and Rolls-Royce needs to collect additional information about conditions in both areas. Rolls-Royce will collect more samples in late 2021 to evaluate the potential risk. Per- and polyfluoroalkyl substances (PFAS), chemicals used in fire suppression and plating operations, were identified during 2020 sampling in on-site groundwater. The impacts are limited to the facility and Rolls-Royce will conduct additional sampling to monitor their presence and extent.
EPA issued a Statement of Basis on November 16, 2020 explaining the proposed remedy for contaminated soil and groundwater as part of its public participation responsibilities under RCRA. EPA will select a final remedy for the facility after the public comment period has ended and any information provided by the public has been reviewed and considered. EPA may modify the proposed remedy or select another remedy based on new information or public comments. Therefore, the public is encouraged to participate in the remedy selection process by reviewing the Statement of Basis, as well as documents contained in the facility record, and then providing comments to EPA.
Site Description
The Rolls-Royce facility is a turbine engine manufacturing facility located on two industrial properties in Indianapolis: Plant 5 and Plant 8. Plant 5 was constructed in 1942 to produce aircraft engines and was originally owned by the Defense Plant Corporation. GM purchased the plant in 1966 and subsequently sold the plant in 1993 to AEC Acquisition Corporation. A wide range of turbine engine-related production processes have been performed at Plant 5 including metal fabrication, machining, heat treating, electroplating, engine testing and assembly. GM constructed Plant 8 in 1953 for turbine engine research and development. The processes conducted at Plant 8 were similar to those performed at Plant 5. Rolls-Royce North America purchased the plants in 1995 and currently owns and operates the facilities to produce turbine engines for commercial and military aircraft. Manufacturing processes are performed at Plant 5. Plant 8 is used for research and development.
In 1999, GM obtained ownership from Rolls-Royce of a closed hazardous waste surface impoundment to facilitate post-closure care. The surface impoundment is classified as a landfill for permitting purposes. In 1999, GM submitted the post-closure permit application to the Indiana Department of Environmental Management, commonly referred to as IDEM. IDEM issued a post-closure permit for the Facility on June 29, 2001, and a subsequent draft permit on October 27, 2006. Due to the GM bankruptcy in 2009, the surface impoundment became the property of the Revitalizing Auto Communities Environmental Response (RACER) Trust, which was formed in 2011 to manage environmental assets from the GM bankruptcy. RACER Trust maintains responsibility for the post-closure maintenance of the surface impoundment.
Contaminants at this Facility
The primary chemicals of concern (COCs) in soil and groundwater are tetrachloroethylene, also known as perchloroethylene or PCE, and trichloroethene, or TCE, from past degreasing operations. Other chlorinated volatile organic compounds, or CVOCs, including 1,1,1-trichloroethane; 1,1,2- trichloroethane; carbon tetrachloride; 1,2-dichloroethane; 1,1-dichloroethene; 1,2-dichloroethene; 1,3-dichloropropene; methylene chloride; 1,1,2,2-tetrachloroethane; vinyl chloride; and 1,2,3-trichloropropane have been detected above screening criteria at the facility. Petroleum hydrocarbons and metals were also reported in facility soil and groundwater.
Institutional and Engineering Controls at this Facility
Existing institutional controls prohibit use of portions of the facility for residential purposes. EPA’s proposed remedy includes imposing new institutional controls on the property that will prohibit potable use of groundwater at the facility, require evaluation of new groundwater use that is different from current use to confirm that the new use will not result in a significant exposure, prevent excavation or extraction of contaminated soil or groundwater without implementing proper waste handling procedures, prohibit residential use of the entire facility, and require vapor intrusion be addressed in affected on-site buildings or new construction.
The proposed remedy also requires the facility to perform groundwater monitoring under an approved Monitoring Plan. Groundwater monitoring data will be used to track remaining concentrations of hazardous materials and confirm they do not pose a risk to human health or the environment. EPA is evaluating other potential institutional controls to ensure future exposure is prevented in affected areas.
Land Reuse Information at this Facility
The EPA is not aware of any plans to change the use of the property or redevelop it in any way at this time. Future use of the facility is at the discretion of the company. However, any future use must meet all current environmental requirements for the site, including the controls proposed under the Statement of Basis.
Site Responsibility at this Facility
Corrective Action activities at this facility have been conducted under EPA with support from the Indiana Department of Environmental Management.