The Grim Reaper is in the water. Consider: Clackamas River From Wikipedia, In March 2008, the United States Geological Survey (USGS) released a report entitled "Pesticide Occurrence and Distribution in the Lower Clackamas River Basin, Oregon, 2000–2005." It details pesticide pollution in the lower Clackamas River, its tributaries, and in pre- and post-treatment drinking water.
In all, 63 pesticide compounds: 33 herbicides, 15 insecticides, 6 fungicides, and 9 pesticide degradates were detected in samples collected during storm and nonstorm conditions. Fifty-seven pesticides or degradates were detected in the tributaries (mostly during storms), whereas fewer compounds (26) were detected in samples of source water from the lower mainstem Clackamas River, with fewest (15) occurring in drinking water.
The study concluded, "Given their frequent and widespread occurrence, especially during storms, pesticides have the potential to affect aquatic life and the quality of drinking water derived from the lower river," and laid out areas for further study.
Choose a place to vacation wisely: Choose a vacation place with pure clean uncontaminated water. That place in probably located in another State.