Search Frequent Questions

Displaying 1 - 15 of 81 results

• 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…

  • Last published: March 12, 2024

• 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…

  • Last published: May 22, 2024

• 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…

  • Last published: May 22, 2024

• 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…

  • Last published: May 22, 2024

• 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…

  • Last published: May 22, 2024

• 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…

  • Last published: May 22, 2024

• 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…

  • Last published: May 22, 2024

• 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…

  • Last published: May 29, 2024

• What will constitute a valid electronic signature for electronic submission of reports to EPA?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . EPA will require that each party who wants to report electronically must sign an agreement that the use of electronic reporting methods will be considered equivalent to paper methods and that personal identification numbers assigned by EPA will…

  • Last published: July 23, 2024

• What is the definition of a responsible corporate officer (RCO) who is required to certify some of the submissions involved?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Under § 80.75(n), reports to EPA must be signed and certified as correct by the owner or a responsible corporate officer of the refiner, importer, or oxygenate blender. "Owner" means the person who is the principal owner of…

  • Last published: August 2, 2024

• Could we become the delegated authority for submission of reports on behalf of our members?

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Individual blenders could rely on your association to submit reports to EPA on their behalf. . However you should understand that if any reports are not submitted or are submitted improperly then responsibility would fall upon the individual…

  • Last published: August 2, 2024

• By our reading of the regulations, the only reporting required of the oxygenate blender who elects to comply with the oxygen standard on a per gallon basis is a yearly report due the last day of February of each year (beginning in 1996) that states the to

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Your interpretation is correct.(10/31/94) This question and answer was originally posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (PDF) (333 pp, 18.17 MB, EPA420-R-03-009, July 2003, About…

  • Last published: August 2, 2024

• Question 14, Section VI.C., of the July 1, 1994 Question and Answer Document provides an example of the creation and addition of two different batches to form a composite mixture. All or a portion of this composite is shipped as RFG. How will the refinery

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Question 14 relates to in-line blending operations that have petitioned EPA for and received an exemption from the independent sampling and testing requirements of the RFG regulations. In such petitions, refiners often define a "batch" of in-line blended…

  • Last published: August 6, 2024

• The batch report requires reporting the volume percent for six oxygenates -methanol, MTBE, ethanol, ETBE, TAME and t-butanol. If a refiner or oxygenate blender uses MTBE or ethanol as an oxygenate, and does not include in its calculation of oxygen weight

  See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Trace amounts of oxygenates that may be present in MTBE or ethanol do not have to be reported. However, where a refiner reports total oxygen weight percent that includes MTBE or ethanol plus other oxygenates in larger than…

  • Last published: August 6, 2024

• 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…

  • Last published: May 22, 2024