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Displaying 1 - 15 of 32 results
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Ongoing Work: How is the air monitoring and air sampling data being used to protect the community and the environment?
Return to: Frequently Asked Questions Air monitoring and sampling stations continue to run 24/7 at: The site perimeter The work areas In the community We oversee results from daily air monitoring reports. These reports continue to show no levels of contaminants (pdf) * (particulates, mineral acid gases) above our health…
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Moss Landing Air: What happens if data shows increased levels of contaminants in the air and how does EPA respond?
Return to: Frequently Asked Questions There are two types of air quality data collected by the extensive air monitoring and air sampling network at the site perimeters and in the community. The first is continuous real-time air monitoring, which looks for particulate matter (PM)2.5, PM10, and hydrogen fluoride. This data…
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Moss Landing Air: What happened with the spike in particulate matter at air monitoring station 9 the morning of January 18, which resulted in a 1.275 mg/m3 reading for PM10?
Return to: Frequently Asked Questions EPA contractors were servicing the equipment at station 9, which resulted in a false reading of a temporary spike in PM10 at that location. Some temporary spikes or gaps in the data are expected, due to various factors such as lapses in telemetry (data transmission)…
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Moss Landing Air: Are you requiring any air monitoring or sampling during Vistra’s battery removal work?
Return to: Frequently Asked Questions EPA is requiring air monitoring and air sampling to protect nearby residents and workers during the battery removal process. Vistra is required to implement air monitoring and air sampling during the demolition and battery handling activities. In the event of a fire, in addition to…
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Moss Landing Air: What particulate sizes did EPA monitor during the initial response in January?
Return to: Frequently Asked Questions EPA monitored for all of the particulate sizes listed below. If we say we are monitoring for PM2.5, this includes monitoring for particles 2.5 micrometers (μm) and smaller, down to the detection limit of the instrument (in this case 0.1 micrometers). The equipment EPA used…
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Other Testing or Sampling at Moss Landing: Did EPA take wipe samples on-site?
Return to: Frequently Asked Questions In emergency response situations, EPA focuses on understanding how a person could contact contamination (also called exposure). Inhalation was the main way someone could be exposed to contamination from Moss Landing. To understand the risk of inhalation, monitoring and measuring the air was done. It…
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Many refiners currently make a jet fuel meeting <500 ppm requirements. If refiners make a jet fuel meeting 15 ppm requirements, there may be compatibility (safety or performance) issues for jet engine manufacturers. Have these manufacturers been consulted in this rulemaking process? If so, what is their position on use of 15 ppm jet fuel?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . The highway and nonroad diesel programs do not require that refiners produce 15 ppm sulfur jet fuel and do not set sulfur limits for jet fuel that is not designated as motor vehicle diesel fuel. This would be…
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Will refiners produce No. 1 diesel fuel at 15 ppm sulfur? What other cold weather-gelling strategies are available to the end-user?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . Yes, some refiners will produce No. 1 diesel fuel. There are also various other cold-flow improver additives currently on the market as well. Question and Answer was originally posted at Questions and Answers on the Clean Diesel Fuel…
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A tank truck common carrier picks up a load of ULSD at a Shell terminal and delivers it to a Flying J truck stop. The carrier only provides a transportation service, does that carrier have any registration or reporting duties?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help . No, the carrier does not have registration or reporting duties as long as taxes were assessed (in the case of highway fuel) or dye was added (in the case of NRLM) at the terminal. There are recordkeeping and…
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Moss Landing Soil: Did EPA use X-ray fluorescence (XRF) to test soil on and around the site?
Return to: Frequently Asked Questions Monterey County is overseeing the soil sampling in the community to assess exposure, while EPA remains focused on overseeing the battery removal work at the site. X-ray fluorescence (XRF) is a screening tool used to detect metals in soil. Screening tools are helpful to assess…
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Ongoing Work: What will EPA and Vistra do if there are elevated readings detected by the air monitors?
Return to: Frequently Asked Questions Under our oversight, Vistra continues to maintain 24/7 air monitoring and sampling. Sampling and monitoring will happen around the site perimeter and in the community. If monitors show elevated readings, work stops. If changes to work processes are needed, Vistra will make the changes to…
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Ongoing Work: How will you control dust and particles during operations?
Return to: Frequently Asked Questions We are committed to ensuring all work moves at the speed of safety. This means taking steps to ensure fine particles (like dust) from Vistra’s work do not pose a risk to the community or workers. We required (pdf) Vistra to submit several work plans…
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Miscellaneous: Is Moss Landing a Superfund site?
Return to: Frequently Asked Questions No. "Superfund Site" typically refers to a long term, complex cleanup, (i.e. decades). The Moss Landing response is a short-term action referred to as a "Time Critical Removal Action" to address the potential threat from the impacted batteries to human health and the environment.
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EPA's Role at Moss Landing: What is battery delinking and what does it do?
Return to: Frequently Asked Questions Battery “delinking” is when cables connecting different batteries are disconnected. At Moss Landing, batteries were disconnected from one another. They were also disconnected from the rack holding the batteries in the energy storage system. Disconnecting the batteries from one another lowers the risk of fire.
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Other Testing or Sampling at Moss Landing: Did EPA sample for black carbon?
Return to: Frequently Asked Questions Black carbon (soot) is part of PM 2.5 (particulate matter smaller than 2.5 microns), which is measured in air monitoring. Since the fire, we have not seen levels of PM2.5 that would be of concern to the community’s health.
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