(2)
Substances described
The substances and classes of substances referred to in paragraph (1) are perfluoroalkyl and polyfluoroalkyl substances and classes of perfluoroalkyl and polyfluoroalkyl substances not described in subsection (b)(1), including—
(A)
perfluoro[(2-pentafluoroethoxy-ethoxy)acetic acid] ammonium salt (Chemical Abstracts Service No. 908020–52–0);
(B)
2,3,3,3-tetrafluoro 2–(1,1,2,3,3,3-hexafluoro)–2–(trifluoromethoxy) propanoyl fluoride (Chemical Abstracts Service No. 2479–75–6);
(C)
2,3,3,3-tetrafluoro 2–(1,1,2,3,3,3-hexafluoro)–2–(trifluoromethoxy) propionic acid (Chemical Abstracts Service No. 2479–73–4);
(D)
3H-perfluoro-3-[(3-methoxy-propoxy) propanoic acid] (Chemical Abstracts Service No. 919005–14–4);
(E)
the salts associated with the chemical described in subparagraph (D) (Chemical Abstracts Service Nos. 958445–44–8, 1087271–46–2, and NOCAS 892452);
(F)
1-octanesulfonic acid 3,3,4,4,5,5,6,6,7,7,8,8-tridecafluoro-potassium salt (Chemical Abstracts Service No. 59587–38–1);
(G)
perfluorobutanesulfonic acid (Chemical Abstracts Service No. 375–73–5);
(H)
1–Butanesulfonic acid, 1,1,2,2,3,3,4,4,4-nonafluoro-potassium salt (Chemical Abstracts Service No. 29420–49–3);
(I)
the component associated with the chemical described in subparagraph (H) (Chemical Abstracts Service No. 45187–15–3);
(J)
heptafluorobutyric acid (Chemical Abstracts Service No. 375–22–4);
(K)
perfluorohexanoic acid (Chemical Abstracts Service No. 307–24–4);
(L)
the compound associated with the chemical described in subsection (b)(1)(F) identified by Chemical Abstracts Service No. 2062–98–8;
(M)
perfluoroheptanoic acid (commonly referred to as “PFHpA”) (Chemical Abstracts Service No. 375–85–9);
(N)
each perfluoroalkyl or polyfluoroalkyl substance or class of perfluoroalkyl or polyfluoroalkyl substances for which a method to measure levels in drinking water has been validated by the Administrator; and
(O)
a perfluoroalkyl and polyfluoroalkyl substance or class of perfluoroalkyl or polyfluoroalkyl substances other than the chemicals described in subparagraphs (A) through (N) that is used to manufacture fluorinated polymers, as determined by the Administrator.