Where can I obtain the hourly data from Continuous Emissions Monitors (CEMs)?
The CEM emissions data are available from the EPA Clean Air Markets Program Data website.
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The CEM emissions data are available from the EPA Clean Air Markets Program Data website.
The EPA intends to prepare a 2020 National Emissions Inventory in collaboration with state, local, and tribal air agency partners. The Air Emissions Reporting Rule (AERR) requires states and delegated local and tribal agencies to report emissions from stationary sources and provide model inputs for onroad and nonroad sources (except…
No, the 2020 National Emissions Inventory (NEI) does not comprehensively capture all sources and sinks of greenhouse gases (GHGs) in the United States. For this information, users should review the EPA’s annual Inventory of U.S. Greenhouse Gas Emissions and Sinks. However, the NEI does report GHG emissions for select sources…
The full NEI is created for every third inventory year (e.g., 2008, 2011, 2014, and 2017). The data for each version has been updated two times each for the 2008, 2011, and 2014 NEI cycles. For the 2017 NEI and beyond, the EPA is trying to publish only a single…
NEI emissions values represent total annual emissions for the inventory reporting year. Criteria air pollutants and precursors (CAPs) are reported in short tons per year, and hazardous air pollutants (HAPs) are reported in lbs per year.
Are Facility Response Plans (FRPs) available to the public? FRPs are submitted to the appropriate EPA Region dependent on the location of the facility. Local Emergency Planning Committees (LEPC) and State Emergency Planning Committees (SEPCs) may request a copy of the FRP from an owner or operator. FRPs are generally…
The Facility Response Plan regulations require subject facilities to prepare and maintain a site plan diagram that includes, among other things, the contents of bulk oil storage tanks, drum oil storage areas, and surface impoundments (40 CFR Part 112 Appendix F). When the contents of these storage units frequently vary…
Are SPCC qualified facilities required to complete and maintain a copy of the Certification of the Applicability of the Substantial Harm Criteria form located in Appendix C of 40 CFR Part 112? Yes, all SPCC regulated facilities, including qualified facilities, that do not meet the criteria of a substantial harm…
During EPA's rulemaking efforts, EPA provided extensions to revise SPCC Plans. EPA also delayed the SPCC compliance date by which a facility must address milk and milk product containers until the Agency could issue the "Exemption for All Milk and Milk Product Containers, Associated Piping and Appurtenances" final rule.
EPA is finalizing this exemption because EPA believes that milk production is already subject to other standards and requirements that will help prevent spills.
The final rule: Exempts all milk and milk product containers, associated piping and appurtenances from SPCC applicability and requirements Excludes the capacity of the exempt containers, associated piping and appurtenances from a facility’s total oil storage capacity calculation to determine if the facility needs to comply with SPCC Removes the…
Option 1: The FTP site is active, but some browsers are no longer supporting the ftp:// protocol. You can access the same data by replacing “ftp://newftp.epa.gov/” with “https://gaftp.epa.gov/” and keep the rest of the URL the same. The filenames you see will be shorter, but if you mouse over them…
The point source maps use a web service provided by Envirofacts. Please report your problem to the Envirofacts “Contact Us” page here.
Tier 1 and Sector categories are assigned by source classification codes (SCCs) that are the most specific processes available in the NEI. The latest SCC list with the Tier 1 and Sector assignments can be downloaded from the EPA SCC website in Comma Separate Values (CSV) format.
Pursuant to 40 CFR §112.20, a facility that could reasonably be expected to cause substantial harm to the environment by discharging oil into or on the navigable waters or adjoining shorelines must prepare and submit a Facility Response Plan (FRP). Section 112.20(h)(2) and Part 112, Appendix F, Section 1.2 require…