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Displaying 1 - 11 of 11 results
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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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Where can I go to learn more?
PitWatch.org is the online home of the Berkeley Pit Public Education Committee. This volunteer committee educates residents, students, and the public about the environmental management of the Berkeley Pit. Information includes the geology, hydrology, current events, and ongoing academic research associated with the Berkeley Pit. This committee frequently shares their…
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Why are gloves, which are exposed to large amounts of lead dust, not required to be disposed of under the Lead Renovation, Repair and Painting (RRP) Rule?
The RRP Rule requires the renovation firm to use precautions to ensure that all personnel, tools, and other items are free of dust and debris before leaving the work area. Workers with contaminated clothing can take that contamination home to their own children, and taking contaminated equipment to another jobsite…
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How can I get involved?
EPA encourages the public to review our Community Involvement Plan (pdf) (66pp, 6MB) that lays out our specific community involvement activities, and how to become involved at the Site. You can also contact our Community Involvement Coordinator, Mackenzie Meter ( [email protected] ), for site updates and to be added to…
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How should lead-containing wastes from RRP renovations be handled and disposed?
While at the work site, wastes must be collected at the conclusion of each work day and at the conclusion of the renovation and stored under containment, in an enclosure, or behind a barrier that prevents release of dust and debris out of the work area and prevents access to…
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Can non-certified workers transport debris off site under the RRP Rule if they have had documented on-the-job training in this activity by the certified renovator?
Answer: Yes. The RRP Rule requires the certified renovator to regularly direct the work being performed by other individuals to ensure that the work practices are being followed, including ensuring that dust or debris does not spread beyond the work site. The certified renovator is responsible for providing training to…
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Under the Lead Renovation, Repair and Painting (RRP) Rule, how should I dispose of contaminated water used in two-bucket mopping?
EPA recommends contacting your local water treatment authority and asking about local requirements for handling and disposing of waste water. Question Number: 23002-20756 Find a printable PDF copy of all frequent questions pertaining to lead .
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Why do mobile source NOx emissions jump higher between 2001 and 2002 on the emissions trends?
The emissions model used for mobile sources changed from MOBILE6.2 to MOVES 2010 in December 2009. This change included a notable increase in NOx emissions. The EPA adjusted data back to 2002 to reflect the change in models. The higher emissions in 2002 are because of this method change and…
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Why do the PM2.5 emissions for the electric utilities source category jump up between 1998 and 1999?
The estimation method for PM emissions from fuel combustion sources was enhanced beginning with the 1999 National Emissions Inventory. Prior to 1999, the emissions measurement data methodology only included the filterable portion (which means the solid particle matter at elevated stack temperatures). Beginning with the 1999 NEI, both the filterable…
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Under the Lead Renovation, Repair and Painting (RRP) Rule, what type of container is adequate for on-site storage of debris?
At the conclusion of each work day and at the conclusion of the renovation, waste that has been collected from renovation activities must be stored under containment, in an enclosure or behind a barrier that prevents release of dust and debris out of the work area and prevents access to…
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