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What is a site assessment and what is the difference between a site assessment and a site investigation?
The first step of the site assessment process is known as a preliminary assessment (PA). This assessment gathers historical and other readily available information on site conditions and surroundings to evaluate whether the site poses a potential threat to human health and the environment and/or whether further investigation is needed…
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Why hasn’t the Norwood Landfill Site been identified as a Superfund Site? Two nearby landfills, Folcroft and Clearview, which were established and in use at the same time as Norwood Landfill and Dump have both been designated as Superfund sites.
EPA is still conducting its investigation of the Norwood Landfill Site to determine if it should be placed on the National Priorities List (NPL), or Superfund List. Thus far, the data collected has not demonstrated that the site warrants placement on the NPL. Both the Folcroft and Clearview Landfills went…
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Where can I find older NEI data (prior to 2008)?
The raw data and summaries that are still available (dating back to 1990) can be obtained from the web page https://www.epa.gov/air-emissions-inventories/pollutant-emissions-summary-files-earlier-neis . Starting with 2001 data, a more limited selection of summary files are available.
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How do the different parts of particulate matter (PM) fit together?
The various parts of PM in the NEI are related as follows. PM10-FIL > PM25-FIL because PM10-FIL includes PM25-FIL PM25-PRI = PM25-FIL + PM-CON This equation only applies at the process level. Because some sources only can report PM2.5 (due to test method differences), this equation does not apply to…
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How does PM2.5 relate to PM species such as EC, OC, SO4, NO3, PMFINE, and DIESEL-PM25?
Primary PM2.5 estimates are speciated into the five PM species in the NEI: elemental (black) carbon (EC), organic carbon (OC), nitrate (NO3), sulfate (SO4), and the remainder of PM25-PRI (PMFINE). Diesel engine PM25-PRI and PM10 emissions are also labeled as DIESEL-PM25 and DIESEL-PM10 for mobile source diesel engines. For all…
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What is a renovation?
The Lead Renovation, Repair, and Painting (RRP) Rule covers activities that modify an existing structure and that result in the disturbance of painted surfaces. All types of repair, remodeling, maintenance, modernization, and weatherization projects are covered, including projects performed as part of another Federal, State, or local program, if the…
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When installing a roof, my firm does not create dust by directly sanding or cutting painted surfaces, but we do hammer the unpainted side of the lumber from above. Does the RRP Rule apply to this work?
The Lead Renovation, Repair, and Painting (RRP) Rule applies to work that disturbs painted surfaces. If hammering painted components, even on the unpainted side, disturbs paint, creating dust or chips, the RRP Rule applies. Question Number: 23002-23787 Find a printable PDF copy of all frequent questions pertaining to lead .
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Where can I download hourly emissions data from continuous monitoring?
Hourly emissions data files are available from the Clean Air Markets Division of EPA, collected as part of 40 CFR Part 75. The download location has changed in February, 2023. The new location is https://campd.epa.gov/data/bulk-data-files . Once on this new site, use the menu (at the left) and the Keyword…
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Why did EPA wait so long to begin its investigation of the Norwood Landfill and Old Norwood Dump?
In the months leading up to the preliminary assessment, EPA gathered information on the property to determine whether a site investigation under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) was warranted. EPA determined to proceed with an investigation and EPA began procuring contractor services to conduct the preliminary…
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What sources make up the Tier 1 categories used in the emissions trends?
Tier 1 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 assignments can be downloaded from the EPA SCC website in Comma Separate Values (CSV) format.
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What is the cause of the large decrease in electric utility emissions, particularly sulfur dioxide, starting in 1995?
SO2 emissions reductions from utilities during this time are primarily attributed to the impacts of the acid rain program. As described on EPA’s Acid Rain Program web page, Phase 1 of this program began in 1995 and affected 263 units at 110 most coal-burning electric utility plants in 21 eastern…
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Can I get access to the Emissions Inventory System if I am not a data provider to EPA?
The Emission Inventory System (EIS) is a secured database for EPA and State/Local and Tribal Air Agencies only. The EIS is used to develop the National Emission Inventory (NEI). While you cannot have access to EIS, you can have access to the current and past NEIs through EPA’s NEI website…
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Are biogenic emissions included in the emissions trends Tier 1 data?
No, the biogenic emissions are not included in the emissions trends Tier 1 data. If needed, users can add the biogenic data either as a separate Tier, or specify its inclusion in the “Miscellaneous” Tier 1 group.
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Are renovations that disturb stucco subject to the RRP Rule? Does it matter whether the stucco has been painted?
Answer: The Lead Renovation, Repair, and Painting (RRP) Rule applies to work that disturbs painted surfaces. Therefore, renovations that disturb stucco are subject to the RRP Rule only if the stucco has been painted. Question Number: 23002-14025 Find a printable PDF copy of all frequent questions pertaining to lead .
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Are Department of Energy weatherization projects covered under the RRP Rule?
Answer : The Lead Renovation, Repair, and Painting (RRP) Rule defines “renovation” to include weatherization projects such as cutting holes in painted surfaces to install blown-in insulation or to gain access to attics, and planing thresholds to install weather stripping. Other types of weatherization projects, such as window replacement, are…
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