; 10 U.S.C. 111 note) is amended by striking section 2926(c)(4) and inserting section 2926(e)(4) . 315. Funding treatment of perfluorooctane sulfonic acid and perfluorooctanoic acid at State-owned and operated National Guard installations (a) Assistance authorized The Secretary concerned may provide for the treatment of perfluorooctane sulfonic acid and perfluorooctanoic acid in drinking water from wells owned and operated by a local water authority undertaken to attain the lifetime health advisory level for such acids in drinking water. (b) Requirements for assistance The Secretary concerned may only provide for the treatment of drinking water pursuant to subsection (a) if— (1) the local water authority has requested such treatment from the Secretary during the fiscal year when the treatment is provided; (2) the elevated levels of perfluorooctane sulfonic acid and perfluorooctanoic acid in the drinking water are the result of activities conducted by or paid for by the Department of the Army or the Department of the Air Force at a State-owned National Guard installation; (3) such treatment takes place only during the fiscal year in which the request was made; (4) the local water authority waives all claims against the United States and the National Guard for treatment expenses incurred before the fiscal year during which the treatment is taking place