There are multiple government agencies that regulate lead limits in homes (i.e. dust), water, soil, and air.
Know for sure what you are drinking: test today if you have any concern.
These agencies are:
Here’s a compiled list:
The City of San Francisco Building Department has additional lead dust rules.
|XRF Analysis Tool||<1.0 cm²|
|Lead Dust Wipes|
|Interior Floor Surface||< 40 µg/ft.²|
|Interior Horizontal Window Surfaces||< 250 µg/ft.²|
|Interior Window Trough||< 400 µg/ft.²|
|Exterior Horizontal Surfaces||< 400 µg/ft.²|
| Lead Soil|
In Children’s Playground
< 400 µg/ft.²
|Not in Children’s Playground|| |
< 1000 µg/ft.²
|Lead in Water||<15 ppb or <15.0 µg/L|