The PRPs also removed invasive species and installed kestrel nest boxes, bluebird boxes and bat boxes to attract wildlife back to the site. Site stakeholders have discussed potential future recreational reuse at the site. In , an incinerator and several landfills opened at the site to handle municipal and industrial wastes. In , the landfills closed, and the site converted to a solid waste transfer station.
Improper waste disposal practices contaminated groundwater, soil and sediment. Groundwater contamination threatened the sole source aquifer for the surrounding population. The PRPs constructed an impermeable cap, a soil vapor extraction SVE system and a groundwater extraction and treatment system. The SVE system operated until Groundwater extraction and treatment is ongoing at the site. Miami County currently owns the site.
The County operates several county entities on site. In addition to the solid waste transfer station, the site is now home to the county sheriff's office, a prison, a juvenile detention center and the county engineering offices. From until , the landfill accepted drums, metal turnings, fly ash and other industrial and burned combustible wastes.
These activities resulted in the contamination of groundwater and soil. EPA is working with the potentially responsible parties PRPs to conduct the remedial investigation and design a cleanup plan for the site.
The PRPs are also continuing to address vapor intrusion in some on-site buildings. Currently, commercial and industrial activities continue on a acre area of the landfill. In addition, the Miami Conservancy District owns a floodway in the southern part of the site. From the s until the late s, manufacturing facilities at the site produced explosives, industrial chemicals and fuels.
Spills and waste handling practices contributed to the contamination of site groundwater and soils. Cleanup activities included soil removal, groundwater treatment as well as land use and groundwater use restrictions. After the successful cleanup of the site, The Point Business Park opened for business in Today, The Point hosts 21 businesses and offers employment opportunities to the local community. Future plans for The Point include additional tenants, expanded facilities and construction of an intermodal facility to serve as a vital road, rail and river transportation resource for the region.
Portions of the site are also leased for agricultural use. The acre TRW, Inc. Minerva Plant Superfund site is located in a rural area of Minerva, Ohio. TRW, Inc. EPA administers the Superfund program in cooperation with individual states and tribal governments.
The NCP is the federal governments blueprint for responding to both spills and hazardous substance releases. Site Discovery and Assessment Ohios remedial response cleanup process begins with site discovery or notification of possible releases of hazardous substances to the environment. Potential sites are assessed to determine if a contaminant release has occurred at or from a property.
The preliminary assessment includes an evaluation of readily available information to quickly identify the level of risk posed to public health and safety and the environment. The second phase of site assessment involves physical investigation. This investigation includes collecting and analyzing environmental and waste samples to determine what hazardous substances are present and whether they are in the soil, ground water, surface water bodies or sediments, or in the air.
This assessment serves as a cursory evaluation of contaminant migration and exposure pathways e. The relative potential of each new site to pose a threat to public health and safety and the environment is evaluated in comparison with the threats posed by other existing sources of contamination and a decision is made as to whether further investigation and cleanup are necessary. Sites that have been prioritized for action and have not received a Covenant Not To Sue pursuant to VAP rules are typically addressed through the remedial response cleanup process.
EPA also has the option of pursuing cleanup at sites. Invitation to Negotiate Directors Final Findings and Orders Negotiation of Directors Final Findings and Orders orders is initiated when the Director sends a letter identifying the threat caused by contaminant releases and inviting potentially responsible parties to negotiate orders to investigate and clean up these sites.
The goal of initiating negotiations is to ensure a site clean up. Typically, clean up orders will require 1 an investigation of the extent of contamination, the rate of migration of contaminants, the risks posed by the contamination, and an evaluation of remedial action alternatives; 2 design of the selected remedial alternative, construction and operation and maintenance of the system; 3 both 1 and 2 ; or 4 implementation of an interim action that will address immediate threats e.
It is possible that an investigation order may include an interim action to address known threats of an imminent nature. VAP Sufficient Evidence Demonstration Ohios Voluntary Action Program is privatized and does not require that a volunteer notify Ohio EPA of its participation until the No Further Action letter has been completed by a certified professional and a decision has been made by the volunteer about whether to pursue a covenant not to sue from the Director.
If a volunteer is already addressing a site pursuant to the VAP rules, a response to the Directors invitation i. The demonstration must meet sufficient evidence rule requirements that the volunteer is addressing the threat s identified in the Directors invitation.
The Director makes the final determination as to whether a party has satisfactorily demonstrated that they were already in the VAP or not. Failure to make satisfactory progress in the VAP may result in a revocation of VAP eligibility and re-initiation of enforcement negotiations. The purpose of the remedial investigation is to characterize the nature and extent of any releases or potential releases of contaminants at or from a site, assess potential risks to public health and safety and the environment posed by such releases, and collect the information needed to support the development and evaluation of cleanup alternatives.
The purpose of the feasibility study is to develop and evaluate the cleanup alternatives and to provide the information necessary to select a formal site remedy. Portions of the remedial investigation and feasibility study are conducted concurrently to allow the information gathered during the remedial investigation to influence the development of cleanup alternatives, which in turn affects data needs and the scope of the remedial investigation.
Interim actions are focused, accelerated response actions designed to prevent, minimize, or mitigate a release or threatened release which, if not addressed, would likely result in or continue to present a substantial threat to public health and safety and the environment. Funding the Future of Superfund Addressing decades of slowing toxic waste cleanup.
Release date: Thursday, December 9, At the same time, the number of remedial cleanup actions that began each year fell from 91 in to 14 in Cleanup actions include construction projects, which is the physical work needed to clean up a site. Cleanup actions at Superfund sites include long-term remedial actions, short-term removals, investigative studies, and physical construction work, among others.
These cleanup actions indicate milestones a Superfund site reaches as it moves toward reaching all cleanup goals and being deleted from the National Priorities List. Between and , there was an average of 57 Superfund toxic waste site Remedies and Final Remedies Selected each fiscal year. In FY , there were From to , when the Superfund Trust was at its highest balance, each year saw an average of 71 Construction Completions.
As the balance of the Trust Fund continued to decline from to , that number fell to an average of 34 construction completions each year. To contain landfill contamination, cleanup included construction of a methane gas venting system and a vegetative cover over the landfill.
Air strippers were put in to remove contaminants from residential drinking water wells and homes were connected to the public water supply. Groundwater monitoring is ongoing. In addition to providing a stable, protective soil covering, this fosters development of a diverse wildlife population. The PRPs also removed invasive species and installed kestrel nest boxes, bluebird boxes and bat boxes. Site stakeholders have discussed opportunities for recreational uses at the site in the future. In , an incinerator and several landfills opened at the site to handle municipal and industrial wastes.
In , the landfills closed. Site facilities converted into a solid waste transfer station. Improper waste disposal practices contaminated soil, sediment and groundwater. The PRPs constructed an impermeable cap, a soil vapor extraction SVE system, and a groundwater extraction and treatment system. The SVE system operated until Groundwater extraction and treatment is ongoing. Miami County currently owns the site property. Several county facilities operate on site.
These businesses employed 1 people. From to , Peters Cartridge Factory made ammunition at the site. Remington Arms Company bought Peters Cartridge in Remington Arms Company continued to make shot shell and cartridge ammunition on site until The site was later divided into land parcels used by non-ammunition-related businesses.
Metals from former ammunition manufacturing contaminated surface soil and sediment at the site. Cleanup included replacing contaminated soil with clean fill and placing contaminated sediment and soil in a containment cell.
An environmental covenant protects the remedy. It also prohibits use of groundwater at the site. A developer has plans for a mixed-use residential and commercial project for this area.
The Ohio EPA Voluntary Action Program oversaw the additional work in order to clean-up the site to residential levels where the housing development is planned. A brewery opened on site in October Hamilton Township owns part of the site, which is being monitored. This area includes open space and a trailhead parking lot for the Little Miami River bike path.
From to , the landfill accepted drums, metal turnings, fly ash, and other industrial and burned combustible wastes. These activities resulted in the contamination of groundwater and soil. In , the PRPs put in vapor intrusion mitigation systems and demolished some on-site buildings. Vapor intrusion monitoring is ongoing. Commercial and industrial uses remain active on a acre part of the landfill.
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