; and (2) include any underlying datasets or additional information of interest to the public, as determined by the Secretary of Defense. (d) Local notification Prior to conducting any testing for perfluoroalkyl or polyfluoroalkyl substances, the Secretary of Defense shall provide to the managers of the public water system and the publicly owned treatment works serving the areas located immediately adjacent to the military installation where such testing is to occur notice in writing of the testing. (e) Definitions In this section: (1) The term formerly used defense site means any site formerly used by the Department of Defense or National Guard eligible for environmental restoration by the Secretary of Defense funded under the Environmental Restoration Account, Formerly Used Defense Sites account established under section 2703(a)(5) of title 10, United States Code. (2) The term military installation has the meaning given such term in section 2801(c)(4) of title 10, United States Code. (3) The term perfluoroalkyl or polyfluoroalkyl substance means any man-made chemical with at least one fully fluorinated carbon atom. (4) The term public water system has the meaning given such term under section 1401(4) of the Safe Drinking Water Act ( 42 U.S.C. 300f(4) ). (5) The term treatment works has the meaning given such term in section 212(2) of the Federal Water Pollution Control Act ( 33 U.S.C. 1292(2) ).