Search Frequent Questions

Filter By:

Active filters:

Remove all filters

Displaying 1 - 15 of 81 results

  • Where can I find older NEI data (prior to 2008)?

    The raw data and summaries that are still available (dating back to 1990) can be obtained from the web page https://www.epa.gov/air-emissions-inventories/pollutant-emissions-summary-files-earlier-neis . Starting with 2001 data, a more limited selection of summary files are available.

    • Last published:

  • 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…

    • Last published:

  • 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…

    • Last published:

  • How do I verify that the fees I am being asked to pay are correct?

    Answer: Click the link that applies to your application type: Firm Individual Training Provider If you still have questions, call the National Lead Information Center at 1-800-424-LEAD . Question Number: 23002-37013 Find a printable PDF copy of all frequent questions pertaining to lead .

    • Last published:

  • How do I know that my transaction will be secure?

    Answer: Online transactions are managed by the U.S. Department of Treasury. For more information regarding the security controls in place to protect your transactions, please visit https://pay.gov/public/home . Question Number: 23002-37016 Find a printable PDF copy of all frequent questions pertaining to lead .

    • Last published:

  • How does my firm become Renovation, Repair, and Painting (RRP) Certified?

    Answer : EPA's Renovation, Repair, and Painting program applies to all states, tribes and territories where EPA has not specifically provided authorization for that state, tribe or territory to operate the program themselves. Currently, there are 15 states and 1 tribe that are authorized by EPA to operate their own…

    • Last published:

  • How does my firm become Abatement Certified?

    Answer: EPA's Abatement program applies to all states, tribes and territories where EPA has not specifically provided authorization for that state, tribe or territory to operate the program themselves. EPA only administers the abatement program in the following states, tribes and territories: Alaska, Arizona, Florida, Idaho, Montana, Nevada, New Mexico…

    • Last published:

  • How do I become accredited as a Training Provider?

    Answer: Trainers seeking accreditation in an EPA administered state must submit their applications and fees online through EPA’s CDX system, the EPA’s electronic reporting system: https://cdx.epa.gov . If you have not previously created a CDX account, click “Register with CDX”, accept the terms, choose “LEAD: Lead-Based Paint Program”, and select…

    • Last published:

  • How does the Safe Drinking Water Act limit lead in pipes, plumbing fittings, fixtures, faucets, solder and flux?

    Answer: Section 1417 of the Safe Drinking Water Act (SDWA) establishes the definition for “lead free” as a weighted average of 0.25% lead calculated across the wetted surfaces of a pipe, pipe fitting, plumbing fitting, and fixture and 0.2% lead for solder and flux. The Act also provides a methodology…

    • Last published:

  • Is exposure to lead contaminated drinking water from absorption through skin a health threat?

    Answer: Human skin does not absorb lead in water. For more information visit our website: https://www.epa.gov/ground-water-and-drinking-water/basic-information-about-lead-drinking-water . Question (23002-32377) Find a printable PDF copy of all frequent questions pertaining to lead .

    • Last published:

  • Are non-transient, non-community water systems (NTNCWSs) required to monitor for lead and copper?

    Answer: All community water systems (CWSs) and NTNCWSs must collect lead and copper tap samples. The frequency of the monitoring and number of samples to be collected and analyzed is based primarily on the number of people served and tap water monitoring results. For an outline of monitoring requirements (e.g…

    • Last published:

  • Is there anything else I can do beyond flushing my tap or buying bottled water?

    Answer: Yes, find “Important Steps You Can Take to Reduce Lead in Drinking Water” if you are concerned about lead in their drinking water. The list is not intended to be exhaustive or to imply that all actions equally reduce lead from drinking water. EPA recommends you also contact your…

    • Last published:

  • My neighbors got their water tested and found lead. Is my water safe?

    Answer: Lead usually gets into drinking water through contact with plumbing materials such as lead pipes or lead solder, or faucets, valves, and fixtures made of brass (brass contains some lead). Since each home has different plumbing pipes and materials, test results are likely to be different for each home…

    • Last published:

  • Can one still sell lead solder under the Lead Ban?

    Answer: Section 1417(a)(3) of the Safe Drinking Water Act (SDWA) prohibits the sale of solder and flux that is not lead-free unless the solder or flux bears a prominent label stating that it is illegal to use the solder or flux in the installation or repair of any plumbing providing…

    • Last published:

  • Why do water systems add phosphate to drinking water? What are the health effects of drinking water containing phosphates? 

    Answer: Public water systems (PWSs) commonly add phosphates to drinking water to prevent the release of metals in drinking water. Orthophosphate is most commonly used for lead and copper control. Polyphosphates sequester iron and manganese to prevent discolored water but are not effective to control lead and copper. Blended phosphates…

    • Last published: