On Thursday, July 27, 2017 at 4:58:28 PM UTC-7, Joerg wrote:

It's Giardia - (Gee-ardia) - this is the most common water born parasite. Most of the water on the west coast has it because there are so many areas without proper sanitary treatment facilities. That's why you should NEVER drink any water from anywhere that isn't treated.

This is world wide. The medications to clear the runs up normally only works about 2/3rds of the time. Although it usually clears up by itself in two or so weeks it can leave effects for a year.

NOT FUN.

Any areas that are posted should also be treated as non-swimming and non-washing.