40 CFR 372.28: Lower thresholds for chemicals of special concern.

(a) Notwithstanding § 372.25 or § 372.27, for the toxic chemicals set forth in this section, the threshold amounts for manufacturing (including importing), processing, and otherwise using such toxic chemicals are as set forth in this section.

(1) Chemical listing in alphabetic order.

Table 1 to Paragraph (a)(1)

Chemical name CAS No. Reporting threshold (in pounds)

Aldrin 00309-00-2 100

Benzo(g,h,i)perylene 00191-24-2 10

Chlordane 00057-74-9 10

Heptachlor 00076-44-8 10

Hexachlorobenzene 00118-74-1 10

1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran 1222-05-5 100

Isodrin 00465-73-6 10

Lead (this lower threshold does not apply to lead when contained in a stainless steel, brass or bronze alloy) 7439-92-1 100

Mercury 07439-97-6 10

Methoxychlor 00072-43-5 100

Octachlorostyrene 29082-74-4 10

Pendimethalin 40487-42-1 100

Pentachlorobenzene 00608-93-5 10

Per- and polyfluoroalkyl substances (Individually listed per- and polyfluoroalkyl substances added by 15 U.S.C. 8921(b)(1) and (c)(1)). (EPA periodically updates the lists of covered chemicals at § 372.65(d) and (e) to reflect chemicals that have been added by 15 U.S.C. 8921) see § 372.65(d) and (e) 100

Polychlorinated biphenyl (PCBs) 01336-36-3 10

Tetrabromobisphenol A 00079-94-7 100

Toxaphene 08001-35-2 10

Trifluralin 01582-09-8 100

(2) Chemical categories in alphabetic order.

Table 2 to Paragraph (a)(2)

Category name Reporting threshold (in pounds unless otherwise noted)

Dioxin and dioxin-like compounds (Manufacturing; and the processing or otherwise use of dioxin and dioxin-like compounds if the dioxin and dioxin-like compounds are present as contaminants in a chemical and if they were created during the manufacturing of that chemical) (see § 372.65(c) for a list of chemicals covered by this category) 0.1 grams.

Hexabromocyclododecane (see § 372.65(c) for a list of chemicals covered by this category) 100

Lead Compounds 100

Mercury compounds 10

Polycyclic aromatic compounds (PACs) (see § 372.65(c) for a list of chemicals covered by this category) 100

(b) The threshold determination provisions under § 372.25(c) through (h) and the exemptions under § 372.38(b) through (h) are applicable to the toxic chemicals listed in paragraph (a) of this section.