Search Frequent Questions

Filter By:

Active filters:

Remove all filters

Displaying 46 - 60 of 307 results

  • Release of a RCRA-delisted hazardous waste

    If a company has had its petition to delist a specific Resource Conservation and Recovery Act (RCRA) hazardous waste granted by an EPA-approved State RCRA program, and that company releases this waste in excess of its Reportable Quantity (RQ), is it required to notify the National Response Center (NRC)? Under…

    • Last published:

  • Release notification for disposal into RCRA-regulated facility

    Would disposal of a hazardous substance into a Resource Conservation and Recovery Act (RCRA) Subtitle C permitted facility or interim status facility be reportable? No. The disposal of hazardous substances into a disposal facility in accordance with EPA regulations is not subject to CERCLA notification provisions. Where the disposal of…

    • Last published:

  • Is there a concentration cutoff below which it is not necessary to report a release?

    Is there a concentration cutoff below which it is not necessary to report a release, even though a Reportable Quantity (RQ) might have been exceeded over a 24-hour period? No. There are no concentration cutoffs for the RQs (i.e., a lower-bound concentration below which reporting would not be required). Unless…

    • Last published:

  • Reporting Changes (other than source or composition) to a Continuous Release Report

    Pursuant to CERCLA regulations, facilities must submit a continuous release report when they release a CERCLA hazardous substance that equals or exceeds a reportable quantity (RQ) on a continuous basis. Once a continuous release report has been sent to EPA, how does the facility report changes in information other than…

    • Last published:

  • What is defined as a structure (home or place of business)?

    While generally defined as a building, a structure under the structural cleaning program will include only those habitable spaces where indoor occupancy is frequent and regularly occurring on a daily or near-daily basis. Examples of residential structures include primary residences and living spaces, and examples of commercial structures include offices…

    • Last published:

  • Why is cleaning of homes and places of businesses happening?

    Norfolk Southern, with EPA oversight, is providing indoor cleaning to eligible occupants in response to concerns about the impact of the derailment and cleanup work on homes and places of businesses. The cleaning is to address potential dust that may have been generated as part of the train derailment and…

    • Last published:

  • Electronic Submission of Tier II Inventory Information

    Pursuant to the Emergency Planning and Community Act (EPCRA) Section 312, facilities must submit by March 1st every year Tier II inventory information regarding any hazardous chemical present at their facility at any time during the previous calendar year in an amount equal to or in excess of its threshold…

    • Last published:

  • Does Ammonia in Ammonium Hydroxide count toward the EHS threshold for reporting under EPCRA section 312?

    A facility has 9,000 pounds of ammonium hydroxide (19 percent solution) present on site at a given time. For reporting under the Emergency Planning and Community Right-to-Know Act (EPCRA) section 312, must the amount of ammonia in ammonium hydroxide be counted (and aggregated) towards the reporting threshold for extremely hazardous…

    • Last published:

  • What work still needs to be done at the derailment site?

    Although contaminated soil has been excavated and removed from the derailment site, some additional work remains. Soil sampling continues to check all areas where cleanup operations took place. Stream assessments continue, and culvert clean out has started. Groundwater and drinking water sampling also continues. Expect these investigations and possible additional…

    • Last published:

  • Use Federal Tier II Form When Claiming Trade Secret

    40 CFR Part 350 allows facilities to withhold certain chemical information when reporting under EPCRA if the facility claims those chemicals to be a trade secret. When submitting the required trade secret claim package for Tier II reports, must a facility use the federal Tier II inventory form or can…

    • Last published:

  • Applicability of EPCRA 311 and 312 to state and local government facilities

    Are state and local government facilities subject to the Emergency Planning and Community Right-to-Know Act (EPCRA) Sections 311 and 312 in states with Occupational Safety and Health Administration (OSHA) approved state plans covering those facilities? The Occupational Safety and Health Act prohibits OSHA from covering state and local government workers…

    • Last published:

  • Clean Water Act (CWA) and CERCLA Hazardous Substance Lists

    What is the relationship between the hazardous substance lists under the Clean Water Act (CWA) and under CERCLA? All CWA hazardous substances and CWA toxic pollutants are CERCLA hazardous substances, whereas only some CERCLA hazardous substances are CWA hazardous substances. CERCLA section 101(14) defines “hazardous substance” by reference to lists…

    • Last published:

  • Using TRI Form R for Continuous Release Reporting

    A facility wants to use the reduced reporting option under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) section 103(f)(2) for releases of hazardous substances that occur in a manner that is continuous and are stable in quantity and rate. Can the Toxics Release Inventory (TRI) Form R be…

    • Last published:

  • Eligibility for Gasoline and Diesel Thresholds at Retail Gas Stations

    If a retail gas station is not fully compliant with applicable Underground Storage (UST) regulations for an underground diesel tank, but is compliant for all gasoline USTs, can it use the 75,000 gallon gasoline UST threshold when determining if a threshold has been exceeded for EPCRA sections 311 and 312…

    • Last published:

  • Determining the amount released for Ammonia and Ammonium Hydroxide for Release Notification Requirements under CERCLA section 103 and EPCRA section 304

    Ammonia (CAS number 7664-41-7) is an Extremely Hazardous Substance (EHS), listed at 40 CFR Part 355 Appendix A and Appendix B with a reportable quantity (RQ) of 100 lbs. Both ammonia and ammonium hydroxide (CAS number 1336-21-6) are listed as Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) hazardous substances…

    • Last published: