Yes, your pets are safe from lead in soil. The main route of lead exposure for pets, like children, is through ingestion. Based on published research that outlines how much lead a pet would need to ingest to negatively impact health, it is unlikely that pets could consume enough soil from the Trail area to cause illness. Still, pets can bring lead in dust into your home. To reduce indoor dust from pets you can brush them outdoors, use entry mats, bathe them often, and wipe paws when dirty.
While lead in soil is unlikely to harm pets, other sources of lead in your home and yard environment could expose pets to lead. For example, chipping and peeling paint containing lead or consumption of other non-food items such as lead shot.