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  • Criteria for selecting alternative release scenarios

    As part of the hazard assessment, owners and operators of Program 2 and Program 3 covered processes must identify and analyze alternative release scenarios (40 CFR §68.28). What criteria should be used when selecting an alternative release scenario? The owner or operator of a stationary source subject to the risk…

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  • What are dioxins and how common are they?

    Dioxins are found throughout the world in the environment. Dioxins are a result of industrial processes and other activities such as burning fuels like wood, coal, or oil. Dioxins are called persistent organic pollutants, meaning they take a long time to break down once they are in the environment.

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  • Does the distance to endpoint start at the process or stationary source boundary?

    When selecting the worst-case release scenario for Program 2 and 3 processes as required by 40 CFR §68.25, a stationary source owner or operator must analyze the release scenario that results in the greatest distance to an endpoint. Does the "greatest distance to an endpoint" refer to the greatest total…

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  • Using meteorological station data for off-site consequence analyses

    For the purpose of the offsite consequence analyses required under 40 CFR Part 68, Subpart B, there are several instances in which data gathered at a local meteorological station may be used to establish the modeling parameters of wind speed, atmospheric stability, temperature, and humidity for the stationary source. How…

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  • Underground storage tank off-site impacts to groundwater, drinking water, or soil

    For the worst-case and alternative release scenarios of an underground storage tank, should I consider any impact on groundwater, drinking water, or soil? No. As part of the worst-case and alternative release scenarios, you need to define the offsite impacts to the environment (40 CFR §68.33) by listing the environmental…

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  • Administrative controls considered when determining worst-case release quantity

    For the purpose of analyzing the worst-case release scenario required as part of the hazard assessment at 40 CFR Part 68, Subpart B, the worst-case release quantity is identified as the greatest amount held in a single vessel or pipe, taking into account administrative controls that limit the maximum quantity…

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  • Are Mechanical Controls Considered Administrative Controls?

    For the purpose of analyzing the worst-case release scenario required as part of the hazard assessment at 40 CFR Part 68, Subpart B, the worst-case release quantity is identified as the greatest amount held in a single vessel or pipe, taking into account administrative controls that limit the maximum quantity…

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  • Worst-case release from smaller process with larger distance to endpoint

    The owner or operator of a stationary source covered by the risk management program regulations must conduct a worst-case release scenario analysis as part of the required hazard assessment (40 CFR §68.25). The worst-case release is defined as the release of the largest quantity of a regulated substance from a…

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  • Can I use any previous three year meteorological data for worst case scenario?

    I am trying to complete my worst case release scenario for the Risk Management Plan under §68.25. I understand that I am required to use a wind speed of 1.5 m/s and F atmospheric stability class as specified in §68.22(b), unless I can prove that at no time over the…

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  • I have heard about research being conducted by the University of Kentucky. What is the health tracking survey?

    University of Kentucky College of Public Health researcher Dr. Erin N. Haynes and her team received a grant from the National Institutes of Health (NIH) to conduct a long-term health study with and for the residents of East Palestine and the surrounding area. The first step is to learn more…

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  • What kind of screening does the East Liverpool City Hospital's East Palestine Clinic offer related to the train derailment?

    The screening tests are based on recommendations by specialists in toxicology to monitor anyone exposed to substances from the train derailment. The tests include urine and blood tests. A urinalysis is done that looks for problems involving the kidneys. The blood tests include a complete blood count (CBC) and a…

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  • Are any other tests ordered?

    There may be based on the evaluation by the physician or other healthcare provider. If a patient is having specific symptoms there may be other tests needed. For example, if a patient is short of breath, they may need to have a chest x-ray or other tests done to evaluate…

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  • Will participating in the program preclude me from receiving other benefits or participating in or filing a claim against Norfolk Southern?

    No.

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  • Are there specific medical tests available for vinyl chloride?

    Medical tests to determine if you have been exposed to vinyl chloride include measuring vinylchloride in your breath but must be collected shortly after exposure. The test is not useful forvery low levels of exposure. Thiodiglycolic acid, which is a breakdown product of vinyl chloride detected in urine, can also…

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  • How many worst-case release scenarios must be analyzed and documented in the RMP?

    As a part of the hazard assessment requirements in 40 CFR Part 68, Subpart B, I must analyze worst-case release scenarios and document certain analyses in my risk management plan (RMP). How many worst-case release scenarios must be analyzed, and how many analyses must be specifically documented in the RMP…

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