Mike - are you referring to arsenic at the high level - or worried about lead in the pipes? The arsenic is not going to stay in the pipes and would be flushed through. 
https://extension.oregonstate.edu/catalog/pub/em-9401-arsenic-your-drinking-water is a great resource about arsenic and includes considerations for use in irrigation, etc.

Chrissy

I think I had asked about arsenic in the pipes desorption from an iron rich bio film buildup inside the pipes, the soil having been watered thru gardening over the years and the risk of inhalation of the dust. The carpet was cleaned with that water a few times over the years. The water heater has an iron tank, again, desorption into the system and the risk of inhaling the steam from a shower. My grandchildren potentially may live here, and these are answers I would love to get sooner than later!  Thank you, Mike
Sent from my Shoe phone



Also, I was told by your site to ask an expert, and all you did was refer me to a link I already read. If you aren’t an “expert”, can you direct me to someone who can answer my questions so I can protect my grandchildren? Thank you, Mike
Sent from my Shoe phone