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  • How long will it take?

    The expectation is for cleaning to take less than one day. The duration will be dependent on the size of the structure and the scope of work.

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  • Do I need to leave my structure during the cleaning?

    While it is strongly recommended that you leave the property during the cleaning, you are not required to do so.

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  • What is EPA’s role?

    EPA will provide oversight of the cleaning.

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  • What about cleaning basements or attics?

    Basements or attics will be considered for cleaning if they are finished and habitable areas.

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  • Do settlement communications, such as past “agreements in principle,” impact the implementation of the final Consent Decrees?

    The parties are bound by the terms of the various final, publicly available consent decrees. These consent decrees were made available for public comment before they were finalized and entered by the Court. Past settlement communications and documents created in the course of settlement discussions have been incorporated (or not)…

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  • What is the Confidentiality Order?

    The Confidentiality Order (Order) is a court order entered by the Federal District Court for the District of Montana (Court) on August 8, 2002, and amended by the Court on December 31, 2003, that applies to Superfund settlement negotiations in the Clark Fork River Basin, including the following sites: Silver…

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  • How does EPA ensure that the potentially responsible parties complete their work?

    All cleanup activities performed by the PRPs are subject to enforcement instruments (i.e., consent decrees or administrative orders) that provide for EPA approval of all deliverables and oversight of all work performed by the PRPs.

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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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  • Will there be photos and videos taken of my property?

    Yes, photos and videos of your property will be taken as a requirement of the program. This is done to ensure that the conditions of the property both pre- and post-cleaning are documented thoroughly.

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  • Why is the Confidentiality Order important?

    The Confidentiality Order (Order) has been, and continues to be, effective in assisting the parties in reaching settlements under the framework established by the Court in US v. ARCO and still pending in court – six consent decrees to date have been entered since the Order was issued. There are…

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  • How complete are the data in the National Emissions Inventory?

    While the goal of the National Emissions Inventory (NEI) program is to include all emissions data, there are always challenges meeting this goal. The answer about completeness of coverage of sources depends on the emissions sector and pollutant. In general, the criteria air pollutants and precursors (CAPs) are expected to…

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  • Where is more information available about emissions estimation methods used by the EPA?

    For criteria air pollutants and precursors as well as for hazardous air pollutants, the methods are described in the technical support document (TSD) for the latest National Emissions Inventory (NEI) available from the main NEI page . For greenhouse gas emissions, you can find greenhouse gas inventory methods from the…

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  • Where are the NAICS/ SIC and SCC codes changes that have been implemented for the 2017NEI?

    Please refer to the NEI webpage for 2017 documentation , and follow the link for Appendix 2 - 2017 NEI Plan Code Changes. That Excel file describes anticipated changes for the SCCs and NAICS and includes a helpful read me. I'll just note in the next NEI/EIS email that SCC…

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  • Who will conduct the cleaning?

    Cleaning will be performed by workers contracted by Norfolk Southern who are trained and experienced with structure cleaning. Cleaning teams will wear the following: badges, identification clothing, safety vest, shoe covers, gloves (when appropriate for the task), and face coverings (upon request by the property owner or renter).

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  • How can we be assured that this cleaning will remove any persistent hazardous material or substances?

    Based on air monitoring and sampling conducted in and around the community, there is no evidence to suggest there is contamination of concern inside structures.

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