Other states have set their own advisory levels lower than the EPA's, but it is not yet clear whether the military will follow them. The Minnesota Department of Health set guidance levels of 35 ppt and 27 ppt for PFOA and PFOS, respectively. New Jersey officials created a 40-ppt advisory and have since recommended lowering it to 14. But at Joint Base McGuire-Dix-Lakehurst, the Air Force is using the EPA's guideline as it tests private wells near the base for contamination, a spokesman said Friday.