creating a vegetable garden in soil previously used as the dog “bathroom”?

Image by clattermonger
The sacks contain gravel excavated from the gutter at the side of the garden.

Question by colleen s: creating a vegetable garden in soil previously used as the dog “bathroom”?
i am hoping to turn an area of the backyard that was previously the bathroom-domain of the family dog for the past 4-5 years into a vegetable garden, but i’m concerned about potential “pathogen” build-up in the soil. can you tell me if this soil will be safe to use? we’ve removed all the visible manure as well as the top 2-3 inches of soil, is there anything else we can do to make sure that the soil is safe to use for growing vegetables?

thanks.

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