Hi. Yes, you are right that lead contamination can be a concern in certain situation. This article from Rutgers provides some advice on minimizing risks from lead and how it can accumulate above natural levels in the environment. Testing for lead and other “heavy metals” is not standard because they usually only accumulate in certain situations (e.g., near industrial sites, old buildings, highways, orchards, etc.). Therefore, it is something that must be requested in addition to the standard soil test. Unfortunately, it seems like Penn State no longer offers that option. I will write to authors of that OSU fact sheet to let them know that it needs to be updated. The other lab they suggest, U. of Kentucky, does offer that service. You can access their forms for submitting samples here. If you select the “Home Garden” form, you will see Heavy Metals listed at the top of the “Optional Tests” section. You just need to add that code in the corresponding column. Your test will provide results for that and several other heavy metals. Using raised beds will help minimize your risk of exposure if you use good soil from a known source, especially since plants with deep roots such as tomatoes are at lower risk for accumulating lead (this is detailed in that Rutgers article).