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  • What’s the difference between air sampling and air monitoring?

    Air monitoring and air sampling are two different methods of looking at air quality. Air monitoring uses electronic devices to provide real-time readings of contaminants in the air. Air sampling involves trapping air over a period of time in a container that is then sent to a laboratory for analysis…

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  • What is EPA’s role in sampling?

    EPA is part of the Unified Command consisting of different agencies to review, approve and direct Norfolk Southern’s workplans and site activities. Surface water sampling is performed by Norfolk Southern contractors, with EPA and Ohio EPA oversight. Soil sampling is performed both by Norfolk Southern contractors and EPA contractors. Air…

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  • Change of owner and RMP facility ID number

    If a facility is sold to a new owner, does it keep its' original RMP Facility ID number? Yes. The facility will keep the ID number assigned by EPA.

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  • Facility ID number and re-registering a facility

    If a facility deregisters, then reregisters, should the facility use the original RMP Facility ID or will it be assigned a new ID? The facility should use the original ID assigned by EPA.

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  • Resubmission of RMP for a facility that previously deregistered

    A covered facility deregisters its RMP because it no longer has more than a threshold quantity of a regulated substance in a covered process. If the facility becomes subject to the CAA §112(r) risk management program regulations at a later date and submits a new RMP, should the facility submit…

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  • RMP Records Maintained Onsite

    Pursuant to 40 CFR Part 68, Subpart G, the owner or operator of a stationary source subject to the risk management program regulations in Part 68 must develop and submit a risk management plan (RMP). Does the owner or operator have to maintain a written copy of the RMP on…

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  • What is the plume map and what does it tell us?

    The plume map is an “event reconstruction” based on known weather and on-site observations during a 10-hour time period after the vent-and-burn operation that occurred on Monday, February 6. It tells us where soot likely fell to the ground and where the highest concentrations of particles may be. This information…

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  • Change of Ownership

    If a facility that is subject to the risk management program regulations in 40 CFR Part 68 is sold to another owner, is the facility required to make a correction or a full update of its risk management plan (RMP)? If there are no changes in the covered operations at…

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  • RMP*eSubmit preparer access

    How does a new Preparer get access to a Risk Management Plan (RMP) via RMP*eSubmit? First, the person must register with CDX. To register with CDX, go to https://cdx.epa.gov/ and complete the registration process for a Risk Management Plan “Preparer”. Once set up as a “Preparer”, the Certifying Official needs…

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  • What is split sampling?

    Split sampling is a technique where multiple samples are collected from the same location at the same time and then sent to separate laboratories for analysis. Checking to see if the labs get the same or similar results is a way to determine the accuracy of the data. If there…

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  • Five-year Anniversary Due Date and Time

    Pursuant to the risk management program regulations in 40 CFR §68.190, the owner or operator of a stationary source shall revise and update the RMP at least once every five years from the date of initial submission. At what time on the 5-year anniversary date is the RMP due? The…

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  • Required Contractor Contact Information

    A facility that uses a contractor to prepare its RMP must include in the registration section the name, mailing address, and telephone number of the contractor who prepared the RMP (40 CFR §68.160(b)(14)). When a contractor only prepares a portion of an RMP on behalf of a facility, does the…

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  • What work happens after contamination under and between the train tracks is removed?

    After track work is complete, additional cleanup and assessments will continue. This includes shipping solid and liquid wastes off-site, excavating in areas where rail cars were staged and scrapped, and sampling and monitoring groundwater, soil, surface water, and sediment.

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  • If a facility changes owners and significant changes have been made to plant operations is the facility required to update all sections of the RMP and resubmit it to EPA?

    Yes. If the facility has new ownership and plant operations have changed significantly, the new facility owner/operator needs to do a resubmission. For details on how to resubmit, see the Web page for RMP*eSubmit .

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  • RMPs for stationary source with multiple program levels

    If a stationary source comprises some covered processes that meet the eligibility requirements for one of the three programs (i.e., Program 1, 2, or 3) and some processes that are subject to a different program, must the owner or operator of the source submit multiple risk management plans (RMPs)? No…

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