locating dog park near community garden

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Hi friends,

A community group is just starting to discuss location of a dog park adjacent to a commuity garden in a public park.  Among their issues is what public health / environmental concerns that they should be aware of in siting the dog run (which, yes, would be fenced off separately).  Any input?  Any other list serve that I should ask which would be particularly knowledgeable about this?

Thanks,

Judy Tiger, Washington, DC