Water at 55 of the 218 Hawaii beaches tested by the state Department of Health in 2020 exceeded the Federal safety threshold for swimming on at least one day during the year, and 14 beaches were potentially unsafe on at least 25 % of the days they were tested, according to a national report released this month.
https://www.yahoo.com/news/safe-wate...161400281.html
https://www.yahoo.com/news/safe-wate...161400281.html