Mushrooms (to be more specific, only certain species) can be used to clean up dirty sites, since they absorb heavy metals so well. +1 for raised beds. +1 for

Mushrooms (to be more specific, only certain species) can be used to clean up dirty sites, since they absorb heavy metals so well. +1 for raised beds. +1 for testing. Here in the US, almost every college has a Cooperative Extension, and does soil testing. At Rutgers [1], it's just an extra $18 for lead testing. [1]: https://njaes.rutgers.edu/soil-testing-lab/services-fees.php https://njaes.rutgers.edu/soil-testing-lab/services-fees.php