Learn the Issues
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RadTown Radon Activity 2: Radon Vacuum
Homes and buildings draw radon into basements, pipes, and lower floors. Using this NGSS and CCSS aligned activity, students can learn more about radon in their homes and schools.
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Natural Radionuclides in Private Wells
Private wells are usually not regulated or inspected for radionuclides. Some states regulate private wells. Well owners are responsible for making sure their drinking water is safe to drink and should test their wells for radionuclides every three years.
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Radioactively Contaminated Sites
Radioactively contaminated sites are cleaned up under a variety of government programs. The EPA's Superfund program identifies, ranks, and cleans up the most hazardous sites in the United States.
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Public Notices, Meetings and Events in EPA's South Central Region
Public notices and events in EPA's South Central region (Region 6).
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Sole Source Aquifer Project Review
Guidance on the EPA's review process for proposed federal financially-assisted projects which lie within the identified project review area.
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Alabama Sinkhole Locations
Endangered Species Protection Bulletins set forth geographically specific pesticide use limitations for the protection of threatened and endangered (listed) species and their designated critical habitat.
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Texas plants habitat photos
Endangered Species Protection Bulletins set forth geographically specific pesticide use limitations for the protection of threatened and endangered (listed) species and their designated critical habitat.
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SPECIATE Documentation
This page links to the PDF called "The development and uses of EPA’s SPECIATE database"
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Greening Tribal Casinos
Tribally owned or operated gaming facilities have many opportunities to implement green building and operations. Environmental improvements can save money and have lasting environmental and social impacts for the Tribe and for facility visitors.
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Threshold determination for a single process with oleum and sulfur trioxide
Oleum, which is a mixture of sulfuric acid and sulfur trioxide, is listed as a regulated toxic substance in 40 CFR §68.130. Sulfur trioxide is also listed individually as a regulated toxic substance. If a single process consists of one vessel containing oleum and one vessel containing sulfur trioxide, must…
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Change of Ownership
If a facility that is subject to the risk management program regulations in 40 CFR Part 68 is sold to another owner, is the facility required to make a correction or a full update of its risk management plan (RMP)? If there are no changes in the covered operations at…
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Which chemicals are covered by the general duty provisions?
For CAA section 112(r)(1), General Duty, what are the chemicals that are covered? There is no specific list of substances which subject a stationary source owner or operator to the general duty provisions. The general duty provisions apply to owners and operators of all stationary sources which have any "extremely…
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Owner / Operator Compliance Audit Timeline
The regulations in 40 CFR §§68.58 and 68.79 require the owner or operator of facilities to conduct and document compliance audits at least every three years, although an owner or operator is not required to conduct a compliance audit prior to submitting a facility’s first RMP. Must an owner or…
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Are agricultural facilities subject to the risk management program requirements?
Are agricultural facilities potentially subject to the risk management program requirements in 40 CFR Part 68? Yes. Although there is one specific exemption from the provisions of 40 CFR Part 68 for ammonia held by a farmer for use as an agricultural nutrient (40 CFR §68.125), there is no general…
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No Procedure for Requesting RMP Five-Year Review Extension
The Risk Management Program (RMP) regulations require the owner or operator of a stationary source to revise and update the source's RMP at least once every five years from the date of its initial submission or most recent full update (§68.190(b)). Is there a procedure for obtaining an extension to…
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Can EPA add chemicals to the list of regulated substances under Part 68?
Can EPA on its own initiative add chemicals to the list, or must it receive a petition from an outside party first and then follow the petition process? EPA may revise the list of regulated substances at the discretion of the Administrator or as a result of petitions. Modifications to…
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Is there an exemption for the atmospheric storage of flammables?
Under OSHA's Process Safety Management Standard, an exemption is provided for atmospheric storage of flammables. Has EPA included this exemption under the risk management program regulations? No. There is no exemption from the risk management program requirements for atmospheric storage of flammable substances because the list of regulated flammable substances…
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How large would a pipe have to be to contain a threshold amount of methane?
An owner or operator of a stationary source that has more than a threshold quantity of a regulated substance in a process must comply with the requirements in 40 CFR Part 68. How large would a pipe have to be to contain a threshold amount (10,000 pounds) of methane? Assuming…
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SPCC responsibility for tanks on leased property
What if I leased some parcels, and there are tanks already present? Am I responsible for these tanks? You could be. If you plan to use these tanks, make sure in your lease agreement, it states who is responsible for these tanks. If the lease does not state who is…
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“Other EPA Systems Facility Identifier” for RMP Facility
A facility subject to the Risk Management Program requirements in 40 CFR Part 68 must enter an “Other EPA Systems Facility Identifier” in Section 1.3 of the Risk Management Plan (RMP). The RMP*eSubmit User’s Manual provides the priority order of identification numbers facilities should use to complete this section. What…