In Hawaii, Fears Grow Over Unsafe Levels of Petroleum in Drinking Water, The New York Times

TL;DR - Hawaii health officials have instructed residents living at an Oahu military base to avoid drinking their tap water after high concentrations of diesel fuel were discovered in at least one well, contaminating a system used by tens of thousands of people and several day care centers and schools.

State health officials announced on Friday that testing of a well overseen by the Navy had detected gasoline- and diesel-range hydrocarbons at levels up to 350 times what the state considers safe for drinking water.

December 11, 2021: In Hawaii, Fears Grow Over Unsafe Levels of Petroleum in Drinking Water, The New York Times