There are no U.S. regulatory guideline levels for GenX. However, on July 14, 2017, the North Carolina Department of Health and Human Services (N.C. DHHS) released an updated preliminary health assessment for concentrations of the unregulated compound GenX in finished, or treated drinking water. The revised health goal for exposure to GenX in drinking water is 140 nanograms per liter (also referred to as parts per trillion). This updated health goal of 140 parts per trillion is expected to be the most conservative and health protective for non-cancer effects in bottle-fed infants, pregnant women, lactating women, children and adults. This health goal is lower than the health goal in the initial preliminary health assessment. This change is due to information from new data.