Total petroleum hydrocarbons (“TPH”) is a term used to describe a large family of several hundred chemical compounds that originate from crude oil.

However, officials said some samples detected low-levels of total petroleum hydrocarbons from fixtures and water heaters within homes, as well as associated fire hydrants.

The Hawaii Department of Health today released updated data obtained from the Navy that shows heightened levels of total petroleum hydrocarbons in both soil vapor and groundwater in recent months ...