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  • How do the different parts of particulate matter (PM) fit together?

    The various parts of PM in the NEI are related as follows. PM10-FIL > PM25-FIL because PM10-FIL includes PM25-FIL PM25-PRI = PM25-FIL + PM-CON This equation only applies at the process level. Because some sources only can report PM2.5 (due to test method differences), this equation does not apply to…

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  • How does PM2.5 relate to PM species such as EC, OC, SO4, NO3, PMFINE, and DIESEL-PM25?

    Primary PM2.5 estimates are speciated into the five PM species in the NEI: elemental (black) carbon (EC), organic carbon (OC), nitrate (NO3), sulfate (SO4), and the remainder of PM25-PRI (PMFINE). Diesel engine PM25-PRI and PM10 emissions are also labeled as DIESEL-PM25 and DIESEL-PM10 for mobile source diesel engines. For all…

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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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  • 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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  • Can I get the Lead-Safe Certified Firm Logo file in different resolution or in black and white?

    Answer: Yes, please submit your request through our contact us page . Question Number: 23002-14639 Find a printable PDF copy of all frequent questions pertaining to lead .

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  • How and where can I use the Lead-Safe Certified Firm Logo?

    Answer: The Lead-Safe Certified Firm Logo must be reproduced so that all of its components are legible, including your firm's certification number. The Logo must not be altered or distorted in any way. You MAY -- Use the Logo to identify your firm as an RRP-certified firm. Firms that are…

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  • How do I get my lead-safe certified firm logo?

    Answer: Your customized firm logo will be emailed to you in your certification approval package. Approval packages are emailed from [email protected]. To help ensure receipt of email correspondence, we recommend you add the [email protected] email address to your contacts to ensure it arrives in your inbox rather than a SPAM…

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  • I can't open the Lead-Safe Certified Firm Logo file I have been sent. What format is it in?

    Answer : The Logo is in a standard .jpg file. It is approximately 900KB to ensure clarity. If this size is too large, or a different format is needed, please submit your request using our Contact Us page . Question Number: 23002-18056 Find a printable PDF copy of all frequent…

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  • What is included in the emissions “Tiers”?

    The Tiers are assigned by a Source Classification Code (SCC), which has the most detail about the emissions processes that generate the emissions. The full list of SCCs, their associated Tiers, and the SCC descriptions is available online at https://ofmpub.epa.gov/sccwebservices/sccsearch/ .

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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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  • Are trainers authorized to use the EPA Lead-Safe Certified Logo?

    Answer: Accredited training providers may use the logo on their site and marketing materials as long as it is used as a tool to guide renovators through the firm certification process (i.e., explain the difference between firm certification and individual training). Training providers may inform students that only certified firms…

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