The results for the day of the competition were OK, but each sample testing takes around 15 hours, so the results were of the cleanliness before heavy rainfalls which caused the sewers to overflow (as they regularly do).
Just knowing about the rainfalls should have put an end to the attempt at competing in the Seine. Not doing so was pure hubris
Which is what they exactly did. They reported the initial competition day due to weather concerns and waited until enough time passed with good conditions
The results for the day of the competition were OK, but each sample testing takes around 15 hours, so the results were of the cleanliness before heavy rainfalls which caused the sewers to overflow (as they regularly do).
Just knowing about the rainfalls should have put an end to the attempt at competing in the Seine. Not doing so was pure hubris
Which is what they exactly did. They reported the initial competition day due to weather concerns and waited until enough time passed with good conditions