Glyphosate is being found in US drinking water too: - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5486281/ - https://www.health.state.mn.us/communities/environment/risk/... The common message is Glyphosate has a very short (ish) half life in soil. What happens when it enters the water table first?
So you’re looking at 1 microgram in a liter of water.
Ok. But does it have any impact at levels like that? Is the impact more or less than the arsenic, mercury and other naturally occurring toxins in drinking water?