By Haven Daley and Tami Abdollah - Associated Press Shares
"We had quite a few beach closings because of high E. coli, and we did extensive water testing, but you don't know exactly where the problem is," she said. "With the dogs we're able to go right to the source. They found a homeowner whose house was only half connected to the septic system; the other half was washing directly out into a creek. We found 30 homeowners who had no idea where their sewage was going."