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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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  • 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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  • 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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  • How do I register renewable gasoline?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Manufacturers/importers of renewable gasoline for on-road use are required to register the fuel with the EPA. To register, see: Register or Update a Fuel or Fuel Additive Request under 40 CFR Part 79 . Please indicate “renewable gasoline”…

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  • Where can I find the public list of registered fuels and fuel additives?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . An online list of fuels and fuel additives registered with EPA is located here: Register or Update a Fuel or Fuel Additive Request under 40 CFR Part 79 .

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  • How do I register renewable diesel?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Manufacturers/importers of renewable diesel for on-road use are required to register the fuel with the EPA. To register, see Register or Update a Fuel or Fuel Additive Request under 40 CFR Part 79 . Please indicate “renewable diesel”…

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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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  • Columbiana County Health District has sampled my private well, will it be sampled again?

    Residents will be contacted if they are within the priority zones and have signed up for private well sampling. Within 60 days after the first sample, private wells are resampled, and residents will be contacted to schedule resampling. Residents within one of the four priority zones can also schedule a…

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  • When do I get an EPA assigned fuel ID/additive ID?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . You will receive your assigned ID after registering your fuel and/or fuel additive with EPA.

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  • Which fuels require registration?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Under Part 79, manufacturers and importers of gasoline and diesel fuels for use in a motor vehicle or additives for such gasoline or diesel fuel are required to register them with the EPA prior to sale.

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  • We are a marketer of ethanol products. Sometimes personnel at ethanol plants make mistakes as to the number of gallons being loaded or produced. How do we "recall" erroneous RINs if the number of gallons we receive exceeds the number of RINs?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . PTD documents may be corrected to reflect the appropriate volume associated with the volume received. The additional volume with assigned RINs may be addressed with a second PTD. Question and Answer was originally posted at: Questions and Answers…

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  • How do I notify EPA if I have changed some of the components of my fuel and/or fuel additive?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Information related to updating fuel and fuel additive registrations is available here: Register or Update a Fuel or Fuel Additive Request under 40 CFR Part 79 .

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  • Am I required to register biodiesel? How would I do that?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Manufacturers/importers of biodiesel for on-road use are required to register the fuel with the EPA. To register, see Register or Update a Fuel or Fuel Additive Request under 40 CFR Part 79 . Additionally, please attach the following…

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  • I recently began producing a new fuel/fuel additive that was not previously reported. How soon do I need to report it?

    See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . New fuels/fuel additives must be registered prior to introduction into commerce. Registration instructions and forms for registering new fuel/fuel additive are available here: Register or Update a Fuel or Fuel Additive Request under 40 CFR Part 79 .

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