Here is a story submitted from one of the members of the Labrador Retriever Forums. It serves as very important reminder of being mindful about where we takes our dogs for swimming excursions.
I love taking my dogs to the water and they love to swim ( naturally)
We all know the feeling we get when our labs jump into the water with enthusiasim just to bring us back a tennis ball… 87 times.
After a particular trip to the lake one day, I discovered one of my dogs' getting sick. She wasn't eating and it was obvious that something was really wrong. So I took her to the vet and found out that she had been poisoned by ingestion of gasoline and oil.
Reflecting back to my recent trips to the lake with my dogs, I didn't remember being close to any discharges from boats. However, I found out that taking my dogs swimming near a busy boat ramp was the problem.
The boat ramp was an easy water access and a very convenient way to let my dogs excercise. However, with a little exploring I have found a "point" just a little farther away to take my dogs. I walk a little further, but it's worth it. My dogs are healthy and happy- and so am I.