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How much lead abatement is necessary to reach safe levels?

I’d like to buy an older home (I live in CT), but with 2 little kids, I’m worried about lead. The confounding issue is that our real estate agent strongly discourages us from doing lead testing for houses we’re interested in. The reasoning is that we already know it’s there (e.g., a house built in 1938 that hasn’t been renovated), but if we do the test, then we are legally required to acknowledge it (e.g., when selling the house, when doing renovations, if we want to foster children). I tried to research how much it would cost to completely remove lead in a home, and it looks like it could be 10-20k for windows, 20k for interior paint, 20k for exterior paint. That is it would cost us maybe 50k or more to be able to be able to say there’s No lead. This “all or nothing” approach seems unpractical to me, and hopefully, unnecessary.

It seems like I should research on my own whether this is something I can shop for in a house (i.e., should I exclude all houses built earlier than 1978) or fix before moving in (without doing testing). I don’t want to buy a house, address the issues, discover that wasn’t sufficient, but then be unable to afford fully fixing the issue.

I can’t find any reference describing how much lead needs to be removed or encapsulated in order to reach a safe level. Everything I’ve seen seems to just conclude

  1. there is no known safe threshold for lead ingestion, therefore
  2. less lead in the house is always better if you’re worried, but
  3. you don’t want to wait for an elevated blood test to discover your abatement was inadequate (lead brain damage is irreversible).
  4. dust level safety standards are set based on practicality, not exclusively effectiveness
  5. an abatement plan will be created for me when necessary (but this isn’t useful since I don’t have a house yet)

Note, I’m not asking a health question here (I already found something useful for that). What I’m looking for are more specific guidelines which explain what kind of abatements are necessary to achieve this recent standard or better:

EPA is lowering the dust-lead hazard standards from 40 micrograms of
lead per square foot (µg/ft2) to 10 µg/ft2 on floors and from 250
µg/ft2 to 100 µg/ft2 on window sills.

For example, here are some possible abatement steps:

  1. It seems clear that deteriorated paint must be repaired
  2. But should I require no lead in windows/doors?
  3. Remove lead from any chewable surfaces (e.g., window sills)
  4. The actual encapsulating paint (not just painted over) everywhere?

Or does anyone know where could I look to get these kinds of answers?

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