Rule2024-12645
PFAS National Primary Drinking Water Regulation; Correction
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
June 11, 2024
Effective
June 25, 2024
Issuing agencies
Environmental Protection Agency
Abstract
The U.S. Environmental Protection Agency (EPA) is correcting formatting and entry designations in a final rule that was published in the Federal Register on April 26, 2024. The rule finalized National Primary Drinking Water Regulations under the Safe Drinking Water Act for five individual per- and polyfluoroalkyl substances (PFAS): perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), hexafluoropropylene oxide dimer acid (HFPO-DA, commonly known as GenX Chemicals). The rule finalized a NPDWR for two or more mixtures of PFNA, PFHXs, HFPO-DA and perfluorobutane sulfonic acid (PFBS). This document corrects formatting and entry designations in the final regulation.
Full Text
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<title>Federal Register, Volume 89 Issue 113 (Tuesday, June 11, 2024)</title>
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[Federal Register Volume 89, Number 113 (Tuesday, June 11, 2024)]
[Rules and Regulations]
[Pages 49101-49104]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-12645]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Parts 141
[EPA-HQ-OW-2022-0114; FRL 8543-04-OW]
RIN 2040-AG18
PFAS National Primary Drinking Water Regulation; Correction
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule; correction.
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SUMMARY: The U.S. Environmental Protection Agency (EPA) is correcting
formatting and entry designations in a final rule that was published in
the Federal Register on April 26, 2024. The
[[Page 49102]]
rule finalized National Primary Drinking Water Regulations under the
Safe Drinking Water Act for five individual per- and polyfluoroalkyl
substances (PFAS): perfluorooctanoic acid (PFOA), perfluorooctane
sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS),
perfluorononanoic acid (PFNA), hexafluoropropylene oxide dimer acid
(HFPO-DA, commonly known as GenX Chemicals). The rule finalized a NPDWR
for two or more mixtures of PFNA, PFHXs, HFPO-DA and perfluorobutane
sulfonic acid (PFBS). This document corrects formatting and entry
designations in the final regulation.
DATES: Effective on June 25, 2024.
ADDRESSES: The EPA has established a docket for this action under
Docket ID No. EPA-HQ-OW-2022-0114. All documents in the docket are
listed on the <a href="https://www.regulations.gov">https://www.regulations.gov</a> website. Although listed in
the index, some information is not publicly available, e.g.,
Confidential Business Information (CBI) or other information whose
disclosure is restricted by statute. Certain other material, such as
copyrighted material, is not placed on the internet and will be
publicly available only in hard copy form. Publicly available docket
materials are available electronically through <a href="https://www.regulations.gov">https://www.regulations.gov</a>.
FOR FURTHER INFORMATION CONTACT: Alexis Lan, Office of Ground Water and
Drinking Water, Standards and Risk Management Division (Mail Code
4607M), Environmental Protection Agency, 1200 Pennsylvania Avenue NW,
Washington, DC 20460; telephone number 202-564-0841; email address:
<a href="/cdn-cgi/l/email-protection#05554344564b55415257456075642b626a73"><span class="__cf_email__" data-cfemail="02524443514c52465550426772632c656d74">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION: The EPA is making several corrections for
inadvertent errors in the regulatory text for the final rule:
I. Does this action apply to me?
This action makes formatting changes for the incorporation of the
April 26, 2024, final PFAS National Primary Drinking Water Regulation
into the Code of Federal Regulations. The agency included in the April
26, 2024, final rule a list of those entities that may be potentially
affected by the final PFAS National Primary Drinking Water Regulation.
II. What does this correction do?
The EPA issued a final rule in the Federal Register on April 26,
2024 (89 CFR 32532) (FRL 8543-02-OW), finalizing National Primary
Drinking Water Regulations under the Safe Drinking Water Act for PFAS:
PFOA, PFOS, PFHxS, PFNA, HFPO-DA, and as well as two or more mixtures
of PFNA, PFHXs, HFPO-DA and PFBS. The EPA inadvertently listed
incorrect entry designations in Sec. 141.61. This document corrects
the designation of entries in the tables in Sec. 141.61(c)(1) and
Sec. 141.61(c)(2). With the corrections to Sec. 141.61(c)(1) and
Sec. 141.61(c)(2), the subsequent tables in Sec. 141.61(c) are also
renumbered; tables 5 and 6 are changed to tables 3 and 4. These
corrections to Sec. 141.61 are also now reflected appropriately in
amendatory instructions 7 and 8. This document corrects the final
regulation.
III. Why is this correction issued as final rule?
Section 553 of the Administrative Procedure Act (APA) (5 U.S.C.
553(b)(3)(B)) provides that, when an agency for good cause finds that
notice and public procedure are impracticable, unnecessary, or contrary
to the public interest, the agency may issue a final rule without
providing notice and an opportunity for public comment. The EPA has
determined that there is a good cause for making this correction final
without prior proposal and opportunity for comment, because the EPA
inadvertently listed the designation of entries incorrectly in Sec.
141.61 in the document published in the Federal Register. The EPA finds
that this constitutes good cause under 5 U.S.C. 553(b)(3)(B).
Corrections
In FR Doc. 2024-07773 beginning on page 32532 in the Federal
Register of April 26, 2024, the EPA is making the following
corrections:
Sec. 141.60 [Corrected]
0
1. On page 32744, in the third column, in Sec. 141.60, in paragraph
(a)(4), ``The effective date for paragraphs (c)(34) through (40) of
Sec. 141.61 (listed in table 4 to paragraph (c)) is April 26, 2029.''
is corrected to read ``The effective date for Sec. 141.61(c)(2)(i)
through (vii) is April 26, 2029.''
0
2. On page 32744, starting in the third column, amendatory instruction
8 for Sec. 141.61 and the accompanying regulatory text are corrected
to read as follows:
8. Amend Sec. 141.61 by:
a. In paragraph (a), revising the introductory text and adding a
table heading;
b. In paragraph (b), revising the introductory text and the table
heading;
c. Revising and republishing paragraph (c); and
d. Adding paragraphs (d) and (e).
The revisions and additions read as follows:
Sec. 141.61 Maximum contaminant levels for organic contaminants.
(a) The following maximum contaminant levels for volatile organic
contaminants apply to community and non-transient, non-community water
systems.
Table 1 to Paragraph (a)--Maximum Contaminant Levels for Volatile
Organic Contaminants
* * * * *
(b) The Administrator, pursuant to section 1412 of the Act, hereby
identifies as indicated in table 2 to this paragraph (b) granular
activated carbon (GAC), packed tower aeration (PTA), or oxidation (OX)
as the best technology, treatment technique, or other means available
for achieving compliance with the maximum contaminant level for organic
contaminants identified in paragraphs (a) and (c) of this section,
except for per- and polyfluoroalkyl substances (PFAS).
Table 2 to Paragraph (b)--BAT for Organic Contaminants in Paragraphs
(a) and (c) of This Section, Except for PFAS
* * * * *
(c) The following maximum contaminant levels (MCLs) in paragraphs
(c)(1) and (2) of this section for synthetic organic contaminants apply
to community water systems and non-transient, non-community water
systems; paragraph (c)(2) of this section also contains health-based
water concentrations (HBWCs) for selected per- and poly-fluoroalkyl
substances (PFAS) used in calculating the Hazard Index.
(1) MCLs for Synthetic Organic Contaminants, Except for PFAS.
[[Page 49103]]
------------------------------------------------------------------------
CAS No. Contaminant MCL (mg/l)
------------------------------------------------------------------------
(i) 15972-60-8.................... Alachlor............ 0.002
(ii) 116-06-3..................... Aldicarb............ 0.003
(iii) 1646-87-3................... Aldicarb sulfoxide.. 0.004
(iv) 1646-87-4.................... Aldicarb sulfone.... 0.002
(v) 1912-24-9..................... Atrazine............ 0.003
(vi) 1563-66-2.................... Carbofuran.......... 0.04
(vii) 57-74-9..................... Chlordane........... 0.002
(viii) 96-12-8.................... Dibromochloropropane 0.0002
(ix) 94-75-7...................... 2,4-D............... 0.07
(x) 106-93-4...................... Ethylene dibromide.. 0.00005
(xi) 76-44-8...................... Heptachlor.......... 0.0004
(xii) 1024-57-3................... Heptachlor epoxide.. 0.0002
(xiii) 58-89-9.................... Lindane............. 0.0002
(xiv) 72-43-5..................... Methoxychlor........ 0.04
(xv) 1336-36-3.................... Polychlorinated 0.0005
biphenyls.
(xvi) 87-86-5..................... Pentachlorophenol... 0.001
(xvii) 8001-35-2.................. Toxaphene........... 0.003
(xviii) 93-72-1................... 2,4,5-TP............ 0.05
(xix) 50-32-8..................... Benzo[a]pyrene...... 0.0002
(xx) 75-99-0...................... Dalapon............. 0.2
(xxi) 103-23-1.................... Di(2-ethylhexyl) 0.4
adipate.
(xxii) 117-81-7................... Di(2-ethylhexyl) 0.006
phthalate.
(xxiii) 88-85-7................... Dinoseb............. 0.007
(xxiv) 85-00-7.................... Diquat.............. 0.02
(xxv) 145-73-3.................... Endothall........... 0.1
(xxvi) 72-20-8.................... Endrin.............. 0.002
(xvii) 1071-53-6.................. Glyphosate.......... 0.7
(xxviii) 118-74-1................. Hexacholorbenzene... 0.001
(xxix) 77-47-4.................... Hexachlorocyclopenta 0.05
diene.
(xxx) 23135-22-0.................. Oxamyl (Vydate)..... 0.2
(xxxi) 1918-02-1.................. Picloram............ 0.5
(xxxii) 122-34-9.................. Simazine............ 0.004
(xxxiii) 1746-01-6................ 2,3,7,8-TCDD 3 x 10-\8\
(Dioxin).
------------------------------------------------------------------------
(2) MCLs and HBWCs for PFAS.
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HBWC (mg/l) for
CAS. No. Contaminant MCL (mg/l) (unless Hazard Index
otherwise noted) calculation
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(i) Not applicable................... Hazard Index PFAS (HFPO-DA, 1 (unitless) \1\....... Not applicable.
PFBS, PFHxS, and PFNA).
(ii) 122499-17-6..................... HFPO-DA...................... 0.00001................ 0.00001.
(iii) 45187-15-3..................... PFBS......................... No individual MCL...... 0.002.
(iv) 108427-53-8..................... PFHxS........................ 0.00001................ 0.00001.
(v) 72007-68-2....................... PFNA......................... 0.00001................ 0.00001.
(vi) 45285-51-6...................... PFOA......................... 0.0000040.............. Not applicable.
(vii) 45298-90-6..................... PFOS......................... 0.0000040.............. Not applicable.
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\1\ The PFAS Mixture Hazard Index (HI) is the sum of component hazard quotients (HQs), which are calculated by
dividing the measured component PFAS concentration in water by the relevant health-based water concentration
when expressed in the same units (shown in ng/l for simplification). The HBWC for PFHxS is 10 ng/l; the HBWC
for HFPO-DA is 10 ng/l; the HBWC for PFNA is 10 ng/l; and the HBWC for PFBS is 2000 ng/l.
Hazard Index = ([HFPO-DA<INF>water</INF> ng/l]/[10 ng/l]) +
([PFBS<INF>water</INF> ng/l]/[2000 ng/l]) + ([PFNA<INF>water</INF> ng/
l]/[10 ng/l]) + ([PFHxS<INF>water</INF> ng/l]/[10 ng/l])
HBWC = health-based water concentration
HQ = hazard quotient
ng/l = nanograms per liter
PFAS<INF>water</INF> = the concentration of a specific PFAS in water
(d) The Administrator, pursuant to section 1412 of the Act, hereby
identifies in table 3 to this paragraph (d) the best technology,
treatment technique, or other means available for achieving compliance
with the maximum contaminant levels for all regulated PFAS identified
in paragraph (c) of this section:
Table 3 to Paragraph (d)--Best Available Technologies for PFAS Listed in
Paragraph (c) of This Section
------------------------------------------------------------------------
Contaminant BAT
------------------------------------------------------------------------
Hazard Index PFAS (HFPO-DA, PFBS, Anion exchange, GAC, reverse
PFHxS, and PFNA). osmosis, nanofiltration.
HFPO-DA................................ Anion exchange, GAC, reverse
osmosis, nanofiltration.
PFHxS.................................. Anion exchange, GAC, reverse
osmosis, nanofiltration.
PFNA................................... Anion exchange, GAC, reverse
osmosis, nanofiltration.
[[Page 49104]]
PFOA................................... Anion exchange, GAC, reverse
osmosis, nanofiltration.
PFOS................................... Anion exchange, GAC, reverse
osmosis, nanofiltration.
------------------------------------------------------------------------
(e) The Administrator, pursuant to section 1412 of the Act, hereby
identifies in table 4 to this paragraph (e) the affordable technology,
treatment technique, or other means available to systems serving 10,000
persons or fewer for achieving compliance with the maximum contaminant
levels for all regulated PFAS identified in paragraph (c) of this
section:
Table 4 to Paragraph (e)--Small System Compliance Technologies (SSCTs)
for PFAS
------------------------------------------------------------------------
Affordable for listed small
Small system compliance technology \1\ system categories \2\
------------------------------------------------------------------------
Granular Activated Carbon................. All size categories.
Anion Exchange............................ All size categories.
Reverse Osmosis, Nanofiltration \3\....... 3,301-10,000.
------------------------------------------------------------------------
\1\ Section 1412(b)(4)(E)(ii) of SDWA specifies that SSCTs must be
affordable and technically feasible for small systems.
\2\ The Act (ibid.) specifies three categories of small systems: (i)
those serving 25 or more, but fewer than 501, (ii) those serving more
than 500, but fewer than 3,301, and (iii) those serving more than
3,300, but fewer than 10,001.
\3\ ``Technologies reject a large volume of water and may not be
appropriate for areas where water quantity may be an issue.
Bruno Pigott,
Assistant Administrator.
[FR Doc. 2024-12645 Filed 6-10-24; 8:45 am]
BILLING CODE 6560-50-P
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