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  • Accidental releases from non-covered processes

    Should the owner or operator include accidental releases from processes containing listed substances below the threshold quantity in the five-year accident history required under the hazard assessment provisions of 40 CFR Part 68, Subpart B, and in the incident investigation requirements under 40 CFR Part 68, Subparts C and D…

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  • Do I have to report accidents that resulted in medical treatment?

    I had a release where several people were treated at the hospital and released; they attributed their symptoms to exposure. We do not believe that their symptoms were in fact the result of exposure to the released substance. Do we have to report these as offsite impacts? Yes, you should…

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  • Where can I download hourly emissions data from continuous monitoring?

    Hourly emissions data files are available from the Clean Air Markets Division of EPA, collected as part of 40 CFR Part 75. The download location has changed in February, 2023. The new location is https://campd.epa.gov/data/bulk-data-files . Once on this new site, use the menu (at the left) and the Keyword…

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  • What is a site assessment and what is the difference between a site assessment and a site investigation?

    The first step of the site assessment process is known as a preliminary assessment (PA). This assessment gathers historical and other readily available information on site conditions and surroundings to evaluate whether the site poses a potential threat to human health and the environment and/or whether further investigation is needed…

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  • Why hasn’t the Norwood Landfill Site been identified as a Superfund Site? Two nearby landfills, Folcroft and Clearview, which were established and in use at the same time as Norwood Landfill and Dump have both been designated as Superfund sites.

    EPA is still conducting its investigation of the Norwood Landfill Site to determine if it should be placed on the National Priorities List (NPL), or Superfund List. Thus far, the data collected has not demonstrated that the site warrants placement on the NPL. Both the Folcroft and Clearview Landfills went…

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  • What is the definition of "offsite property damage?"

    I am working on the five-year accident history portion of the hazard assessment under the RMP. Section 68.42(a) tells me to include "all accidental releases from covered processes that resulted in deaths, injuries, or significant property damage on site, or known offsite deaths, injuries, evacuations, sheltering in place, property damage…

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  • When does the accident history's five-year period begin?

    The hazard assessment requirements under 40 CFR Part 68, Subpart B include provision of a five-year accident history, as specified at §68.42. When does the five-year period to be reported in the accident history begin? The five-year accident history must include information on all accidental releases from covered processes meeting…

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  • What is the definition of injury?

    Under the hazard assessment requirements of 40 CFR Part 68, Subpart B, an owner or operator must document a five-year accident history including all accidental releases from covered processes that resulted in deaths, injuries, or significant property damage on site, or known offsite deaths, injuries, evacuations, sheltering in place, property…

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  • Do Program Level 1 processes need to do five-year accident histories?

    What is the relationship between the accident history criteria for Program 1 and the five-year accident history? If my process is eligible for Program 1, do I still need to do a five-year accident history? The five-year accident history is an information collection requirement that is designed to provide data…

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  • How complete are the data in the National Emissions Inventory?

    While the goal of the National Emissions Inventory (NEI) program is to include all emissions data, there are always challenges meeting this goal. The answer about completeness of coverage of sources depends on the emissions sector and pollutant. In general, the criteria air pollutants and precursors (CAPs) are expected to…

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  • Where is more information available about emissions estimation methods used by the EPA?

    For criteria air pollutants and precursors as well as for hazardous air pollutants, the methods are described in the technical support document (TSD) for the latest National Emissions Inventory (NEI) available from the main NEI page . For greenhouse gas emissions, you can find greenhouse gas inventory methods from the…

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  • Why did EPA wait so long to begin its investigation of the Norwood Landfill and Old Norwood Dump?

    In the months leading up to the preliminary assessment, EPA gathered information on the property to determine whether a site investigation under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) was warranted. EPA determined to proceed with an investigation and EPA began procuring contractor services to conduct the preliminary…

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  • Five-Year Accident History for Non-Gas Releases

    Pursuant to 40 CFR §68.42(a), the owner or operator of a stationary source subject to the risk management program regulations must document significant accidental releases of regulated substances from a covered process in the five years prior to the submission of an initial or updated risk management plan (RMP). For…

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  • What level of off-site property damage triggers five-year accident history reporting?

    What level of off-site property damage triggers reporting? Any level of known offsite property damage triggers inclusion of the accident in the five-year accident history. You are not required to conduct a survey to determine if such damage occurred, but if you know, or could reasonably be expected to know…

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  • Do I need to report releases for processes that have shut down?

    A process involving a regulated substance had an accidental release with off-site consequences two years ago. The process has been shut down. Do I have to report anyway? No. The release does not have to be reported in your accident history. Your Risk Management Plan only needs to address operating…

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