Crush the dog sniffs out leaking sewage in Whatcom County

Crush, a dog trained to sniff out only human waste, visits Whatcom County to help county officials find sewage systems leaking into Whatcom waterways, April 29, 2016.
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Crush, a dog trained to sniff out only human waste, visits Whatcom County to help county officials find sewage systems leaking into Whatcom waterways, April 29, 2016.