Case: American Water Works Association, et al. v. EPA

24-01188 | U.S. Court of Appeals for the District of Columbia Circuit

Filed Date: June 7, 2024

Case Ongoing

Clearinghouse coding complete

Case Summary

In April 2024, during the Biden Administration, the EPA  finalized a National Primary Drinking Water Regulation setting legally enforceable maximum contaminant levels (MCLs) for six PFAS chemicals in public water systems, along with monitoring and reporting requirements.  Groups representing water utilities and industry (including the American Water Works Association, Association of Metropolitan Water Agencies, American Chemistry Council, and others) filed a petition in the D.C. Circuit Court o…

In April 2024, during the Biden Administration, the EPA  finalized a National Primary Drinking Water Regulation setting legally enforceable maximum contaminant levels (MCLs) for six PFAS chemicals in public water systems, along with monitoring and reporting requirements.  Groups representing water utilities and industry (including the American Water Works Association, Association of Metropolitan Water Agencies, American Chemistry Council, and others) filed a petition in the D.C. Circuit Court of Appeals to set aside this rule.  The challengers argued the EPA’s rule violated procedural and substantive requirements of the Safe Drinking Water Act (SDWA) and the Administrative Procedure Act (APA).

After the change in administration in 2025, the court stayed the litigation multiple times to give the EPA and the new administration time to reconsider aspects of the rule. The court removed the case from abeyance on December 1, 2025. Two days later, the EPA moved for partial vacatur  on the rule, marking a significant reverseal in the EPA's policy. The motion came following the  Trump Administration’s issuance of its first Unified Agenda, a semiannual public document which generally compiles all of the agency’s proposed, ongoing, and recently completed regulatory and deregulatory actions. The Agenda indicated the EPA's intention to issue a final rule withdrawing regulatory determinations for the four other PFAS.

This case is ongoing.

Summary Authors

Jinan Abufarha (12/18/2025)

Calvin OConnell (12/29/2025)

People

For PACER's information on parties and their attorneys, see: https://www.courtlistener.com/docket/68839326/parties/american-water-works-association-v-epa/


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Documents in the Clearinghouse

No documents yet available via the Clearinghouse.

Docket

See docket on RECAP: https://www.courtlistener.com/docket/68839326/american-water-works-association-v-epa/

Last updated Jan. 29, 2026, 12:20 a.m.

ECF Number Description Date Link Date / Link

PETITION FOR REVIEW CASE docketed. [24-1188] [Entered: 06/07/2024 05:14 PM]

June 7, 2024

June 7, 2024

1208630800

PETITION FOR REVIEW [2058535] of a decision by federal agency filed by American Water Works Association and Association of Metropolitan Water Agencies [Service Date: 06/07/2024 ] Disclosure Statement: Attached. [24-1188] [Entered: 06/07/2024 05:15 PM]

June 7, 2024

June 7, 2024

RECAP
1208630803

CERTIFIED COPY [2058537] of Petition for Review sent to respondent [2058535-2] [24-1188] [Entered: 06/07/2024 05:15 PM]

June 7, 2024

June 7, 2024

1208630812

CLERK'S ORDER [2058539] filed directing party to file initial submissions: PETITIONER docketing statement due 07/08/2024. PETITIONER certificate as to parties due 07/08/2024. PETITIONER statement of issues due 07/08/2024. PETITIONER underlying decision due 07/08/2024. PETITIONER deferred appendix statement due 07/08/2024. PETITIONER procedural motions due 07/08/2024. PETITIONER dispositive motions due 07/22/2024; directing party to file initial submissions: RESPONDENT entry of appearance due 07/08/2024. RESPONDENT procedural motions due 07/08/2024. RESPONDENT certified index to record due 07/22/2024. RESPONDENT dispositive motions due 07/22/2024 [24-1188] [Entered: 06/07/2024 05:18 PM]

June 7, 2024

June 7, 2024

1208631112

ENTRY OF APPEARANCE [2058694] filed by Andrew D. Knudsen on behalf of Respondents EPA and Michael S. Regan. [24-1188] (Knudsen, Andrew) [Entered: 06/10/2024 11:59 AM]

June 10, 2024

June 10, 2024

1208631428

CLERK'S ORDER [2058852] filed consolidating case 24-1191 (Consolidation started 06/10/2024) with 24-1188; directing parties to file in 24-1191 initial submissions: PETITIONER docketing statement due 07/10/2024. PETITIONER statement of issues due 07/10/2024 [24-1188, 24-1191] [Entered: 06/10/2024 04:21 PM]

June 10, 2024

June 10, 2024

1208632316

CLERK'S ORDER [2059369] filed consolidating case 24-1192 (Consolidation started 06/12/2024) with 24-1188; directing party to file in 24-1192 initial submissions: PETITIONER docketing statement due 07/12/2024. PETITIONER statement of issues due 07/12/2024 [24-1188, 24-1191, 24-1192] [Entered: 06/12/2024 12:34 PM]

June 12, 2024

June 12, 2024

RECAP
1208637755

ENTRY OF APPEARANCE [2062076] filed by Kimere J. Kimball on behalf of Respondents EPA and Michael S. Regan in 24-1188, 24-1191, 24-1192. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 06/27/2024 04:40 PM]

June 27, 2024

June 27, 2024

1208638075

MOTION [2062232] for leave to intervene [Disclosure Listing: Attached] filed by Buxmont Coalition for Safe Water et al. [Service Date: 06/28/2024 ] [24-1188, 24-1191, 24-1192] [Edited 07/01/2024 by EKC] (O'Brien, Katherine) [Entered: 06/28/2024 02:09 PM]

June 28, 2024

June 28, 2024

1208638079

MOTION [2062233] for leave to intervene [Disclosure Listing: Attached] filed by Natural Resources Defense Council [Service Date: 06/28/2024 ] [24-1188, 24-1191, 24-1192] [Edited 07/01/2024 by EKC] (Thompson, Jared) [Entered: 06/28/2024 02:13 PM]

June 28, 2024

June 28, 2024

RECAP
1208640385

DOCKETING STATEMENT [2063356] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 07/08/2024 ] [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 07/08/2024 12:53 PM]

July 8, 2024

July 8, 2024

1208640396

UNDERLYING DECISION IN CASE [2063362] submitted by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 07/08/2024 ] [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 07/08/2024 12:55 PM]

July 8, 2024

July 8, 2024

1208640399

CERTIFICATE AS TO PARTIES, RULINGS AND RELATED CASES [2063364] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 07/08/2024 ] [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 07/08/2024 12:58 PM]

July 8, 2024

July 8, 2024

1208640405

STATEMENT OF ISSUES [2063366] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 07/08/2024 ] [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 07/08/2024 12:59 PM]

July 8, 2024

July 8, 2024

RECAP
1208640408

STATEMENT OF INTENT REGARDING APPENDIX DEFERRAL [2063367] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 07/08/2024 ] Intent: AppxDeferred [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 07/08/2024 01:01 PM]

July 8, 2024

July 8, 2024

1208641595

DOCKETING STATEMENT [2064058] filed by National Association of Manufacturers and American Chemistry Council in 24-1191 [Service Date: 07/10/2024 ] [24-1191, 24-1188, 24-1192] (Kimberly, Michael) [Entered: 07/10/2024 03:07 PM]

July 10, 2024

July 10, 2024

1208641598

STATEMENT OF ISSUES [2064059] filed by National Association of Manufacturers and American Chemistry Council in 24-1191 [Service Date: 07/10/2024 ] [24-1191, 24-1188, 24-1192] (Kimberly, Michael) [Entered: 07/10/2024 03:09 PM]

July 10, 2024

July 10, 2024

RECAP
1208641911

DOCKETING STATEMENT [2064226] filed by The Chemours Company FC, LLC in 24-1192 [Service Date: 07/11/2024 ] [24-1192, 24-1188, 24-1191] (Kedem, Allon) [Entered: 07/11/2024 02:48 PM]

July 11, 2024

July 11, 2024

1208641914

STATEMENT OF ISSUES [2064227] filed by The Chemours Company FC, LLC in 24-1192 [Service Date: 07/11/2024 ] [24-1192, 24-1188, 24-1191] (Kedem, Allon) [Entered: 07/11/2024 02:50 PM]

July 11, 2024

July 11, 2024

1208641917

CERTIFICATE AS TO PARTIES, RULINGS AND RELATED CASES [2064228] filed by The Chemours Company FC, LLC in 24-1192 [Service Date: 07/11/2024 ] [24-1192, 24-1188, 24-1191] (Kedem, Allon) [Entered: 07/11/2024 02:53 PM]

July 11, 2024

July 11, 2024

1208641920

STATEMENT OF INTENT REGARDING APPENDIX DEFERRAL [2064230] filed by The Chemours Company FC, LLC in 24-1192 [Service Date: 07/11/2024 ] Intent: AppxDeferred [24-1192, 24-1188, 24-1191] (Kedem, Allon) [Entered: 07/11/2024 02:55 PM]

July 11, 2024

July 11, 2024

1208645124

CERTIFIED INDEX TO RECORD [2065850] filed by EPA and Michael S. Regan in 24-1188, 24-1191, 24-1192 [Service Date: 07/22/2024 ] [24-1188, 24-1191, 24-1192] (Knudsen, Andrew) [Entered: 07/22/2024 05:45 PM]

July 22, 2024

July 22, 2024

1208645426

CLERK'S ORDER [2066003] filed granting motion for leave to intervene [2062232-2], granting motion for leave to intervene [2062233-2] [24-1188, 24-1191, 24-1192] [Entered: 07/23/2024 12:37 PM]

July 23, 2024

July 23, 2024

RECAP
1208645964

CLERK'S ORDER [2066252] filed directing party to file briefing format - Proposed formats due 08/21/2024 [24-1188, 24-1191, 24-1192] [Entered: 07/24/2024 01:36 PM]

July 24, 2024

July 24, 2024

1208651360

NOTICE [2069131] of intention to participate as amicus curiae [Disclosure Listing: Not Applicable to this Party] filed by State of Connecticut [Service Date: 08/09/2024 ] [24-1188, 24-1191, 24-1192] [Edited 08/09/2024 by EKC] (Levine, Matthew) [Entered: 08/09/2024 09:50 AM]

Aug. 9, 2024

Aug. 9, 2024

1208653985

JOINT MOTION [2070570] concerning briefing format filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 (Service Date: 08/16/2024 by CM/ECF NDA) Length Certification: 3545 words. [24-1188, 24-1191, 24-1192] (Tenpas, Ronald) [Entered: 08/16/2024 04:45 PM]

Aug. 16, 2024

Aug. 16, 2024

1208658269

PER CURIAM ORDER [2072754] filed ORDERED that the following briefing format and schedule will apply in these consolidated cases: Opening Brief for Petitioners in No. 24-1188 due 10/07/2024. Opening Brief for Petitioners in Nos. 24-1191 & 24-1192 due 10/07/2024. Respondents’ Brief due on 12/23/2024. Brief of Respondent-Intervenors due 01/17/2025. Reply Brief for Petitioners in No. 24-1188 due 02/25/2025. Reply Brief for Petitioners in Nos. 24-1191 & 24-1192 due 02/25/2025. Deferred Appendix due 03/11/2025. Final Briefs due 03/25/2025 (SEE ORDER FOR MORE DETAILS). Before Judges: Wilkins, Rao and Walker. [24-1188, 24-1191, 24-1192] [Entered: 09/03/2024 10:52 AM]

2 Notice sent

View on PACER

1 Order Sent

View on RECAP

Sept. 3, 2024

Sept. 3, 2024

1208669113

MOTION [2078586] for entry of protective order filed by EPA and Michael S. Regan (Service Date: 10/07/2024 by CM/ECF NDA) Length Certification: 812 words. [24-1188] (Knudsen, Andrew) [Entered: 10/07/2024 12:30 PM]

1 Motion Filed

View on PACER

2 Exhibit 1 - Text of Proposed Protective Order

View on PACER

3 Exhibit 2 - Cherokee Concerned Citizens v. EPA

View on PACER

4 Exhibit 3 - Alaska Community Action on Toxics v. EPA

View on PACER

5 Exhibit 4 - Alaska v. EPA

View on PACER

Oct. 7, 2024

Oct. 7, 2024

1208669377

PETITIONER BRIEF [2078731] filed by National Association of Manufacturers and American Chemistry Council in 24-1191, The Chemours Company FC, LLC in 24-1192 [Service Date: 10/07/2024 ] Length of Brief: 12,994. [24-1188, 24-1191, 24-1192] (Kimberly, Michael) [Entered: 10/07/2024 07:26 PM]

Oct. 7, 2024

Oct. 7, 2024

RECAP
1208669386

PETITIONER BRIEF [2078734] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 10/07/2024 ] Length of Brief: 12,906. [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 10/07/2024 10:06 PM]

Oct. 7, 2024

Oct. 7, 2024

RECAP
1208669389

SEPARATE STATUTORY ADDENDUM [2078735] to Appellant/Petitioner brief [2078734-2] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date:10/07/2024 ] [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 10/07/2024 10:09 PM]

Oct. 7, 2024

Oct. 7, 2024

1208671747

MOTION [2080015] to participate as amicus curiae [Disclosure Listing: Attached] filed by Chamber of Commerce of the United States of America [Service Date: 10/15/2024 ] [24-1188, 24-1191, 24-1192] (Lin, Elbert) [Entered: 10/15/2024 06:58 PM]

Oct. 15, 2024

Oct. 15, 2024

1208672059

AMICUS FOR PETITIONER BRIEF [2080190] lodged by Chamber of Commerce of the United States of America [Service Date: 10/16/2024 ] Length of Brief: 5,769 Words. [24-1188, 24-1191, 24-1192] [Edited 10/17/2024 by EKC--MODIFIED EVENT FROM FILED TO LODGED] (Lin, Elbert) [Entered: 10/16/2024 02:13 PM]

Oct. 16, 2024

Oct. 16, 2024

RECAP
1208676784

CLERK'S ORDER [2082644] filed granting the motion of the Chamber of Commerce of the United States of America for leave to participate as amicus curiae in support of petitioners [2080015-2]; The Clerk is directed to file the lodged Amicus brief [2080190-2] [24-1188, 24-1191, 24-1192] [Entered: 10/29/2024 03:43 PM]

Oct. 29, 2024

Oct. 29, 2024

RECAP

PER ABOVE ORDER lodged Amicus brief [2080190-2] is filed [24-1188, 24-1191, 24-1192] [Entered: 10/30/2024 10:04 AM]

Oct. 29, 2024

Oct. 29, 2024

1208681212

UNOPPOSED MOTION [2084949] to extend time to file brief to 01/17/2025 filed by State of Connecticut in 24-1188 [Service Date: 11/14/2024 ] Length Certification: 620 Words. [24-1188, 24-1191, 24-1192] (Levine, Matthew) [Entered: 11/14/2024 03:59 PM]

Nov. 14, 2024

Nov. 14, 2024

1208683624

MOTION [2086232] to participate as amicus curiae [Disclosure Listing: Attached] filed by CENTER FOR ENVIRONMENTAL HEALTH, CAPE FEAR RIVER WATCH, TOXIC FREE NC, HARPER PETERSON, MICHAEL WATTERS [Service Date: 11/22/2024 ] [24-1188, 24-1191, 24-1192]--[Edited 11/22/2024 by EKC] (Sussman, Robert) [Entered: 11/22/2024 12:17 PM]

Nov. 22, 2024

Nov. 22, 2024

1208685247

CLERK'S ORDER [2087080] filed granting the motion of amicus curiae State of Connecticut to extend time to file its brief in support of respondents [2084949-2], The brief of amicus curiae State of Connecticut is due 01/17/2025. [24-1188, 24-1191, 24-1192] [Entered: 11/27/2024 12:17 PM]

Nov. 27, 2024

Nov. 27, 2024

RECAP
1208686764

CLERK'S ORDER [2087891] filed granting the unopposed motion Center for Environmental Health, Cape Fear River Watch, Toxic Free North Carolina, Harper Peterson, and Michael Watters for leave to file a brief as amici curiae in support of respondents [2086232-2], The brief of amici curiae is now due 01/17/2025. [24-1188, 24-1191, 24-1192] [Entered: 12/04/2024 12:22 PM]

Dec. 4, 2024

Dec. 4, 2024

1208688451

PER CURIAM ORDER [2088792] filed ORDERED that the motion [2078586-2] be granted and that the protective order be entered. Before Judges: Katsas, Childs and Garcia. [24-1188, 24-1191, 24-1192] [Entered: 12/10/2024 10:23 AM]

Dec. 10, 2024

Dec. 10, 2024

RECAP
1208688454

PER CURIAM PROTECTIVE ORDER [2088795] filed for entry of protective order. Before Judges: Katsas, Childs and Garcia. [24-1188, 24-1191, 24-1192] [Entered: 12/10/2024 10:27 AM]

Dec. 10, 2024

Dec. 10, 2024

RECAP
1208689116

MOTION [2089133] to extend time to file amicus brief to 01/17/2025 filed by Individual Scientists (Service Date: 12/11/2024 by US Mail) Length Certification: 552 words. [24-1188, 24-1191, 24-1192]--[Edited 12/11/2024 by EKC] (Benavides, Marissa) [Entered: 12/11/2024 12:51 PM]

Dec. 11, 2024

Dec. 11, 2024

1208693198

RESPONDENT BRIEF [2091318] filed by EPA and Michael S. Regan in 24-1188, 24-1191, 24-1192 [Service Date: 12/23/2024 ] Length of Brief: 25,699 words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 12/23/2024 05:13 PM]

Dec. 23, 2024

Dec. 23, 2024

RECAP
1208693201

SEPARATE STATUTORY ADDENDUM [2091319] to Appellee/Respondent brief [2091318-2] filed by EPA and Michael S. Regan in 24-1188, 24-1191, 24-1192 [Service Date:12/23/2024 ] [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 12/23/2024 05:15 PM]

Dec. 23, 2024

Dec. 23, 2024

1208693646

CLERK'S ORDER [2091530] filed granting the unopposed motion of Scientist Amici to extend time to file its brief in support of respondents [2089133-2], The brief of Scientist Amici is due 01/17/2025. [24-1188, 24-1191, 24-1192] [Entered: 12/26/2024 04:19 PM]

Dec. 26, 2024

Dec. 26, 2024

1208699832

AMICUS FOR RESPONDENT BRIEF [2094668] filed by Cape Fear River Watch, Center for Environmental Health, Harper Peterson, Toxic Free North Carolina and Michael Watters in 24-1188 CENTER FOR ENVIRONMENTAL HEALTH, CAPE FEAR RIVER WATCH, TOXIC FREE NC, NORTH CAROLINA STOP GENX IN OUR WATER, HARPER PETERSON, MICHAEL WATTERS, DEBRA STEWART, JANE JACOBS, LOVELL PIERCE, JR. [Service Date: 01/17/2025 ] Length of Brief: 6498 words. [24-1188, 24-1191, 24-1192] (Sussman, Robert) [Entered: 01/17/2025 07:47 AM]

Jan. 17, 2025

Jan. 17, 2025

1208700062

NOTICE [2094795] of intention to participate as amicus curiae [Disclosure Listing: Previously Filed] filed by Stop GenX in our Water, Debra Stewart, Jane Jacobs and Lovell Pierce, Jr [Service Date: 01/17/2025 ] [24-1188, 24-1191, 24-1192]--[Edited 01/17/2025 by EKC] (Sussman, Robert) [Entered: 01/17/2025 01:03 PM]

Jan. 17, 2025

Jan. 17, 2025

1208700163

INTERVENOR FOR RESPONDENT BRIEF [2094834] filed by Buxmont Coalition for Safe Water, Clean Cape Fear, Clean Haw River, Concerned Citizens of WMEL Water Authority Grassroots, Environmental Justice Task Force, Fight for Zero, Merrimack Citizens for Clean Water, Natural Resources Defense Council and Newburgh Clean Water Project in 24-1188 [Service Date: 01/17/2025 ] Length of Brief: 9,100 words. [24-1188, 24-1191, 24-1192] (O'Brien, Katherine) [Entered: 01/17/2025 02:16 PM]

Jan. 17, 2025

Jan. 17, 2025

RECAP
1208700166

SEPARATE STATUTORY ADDENDUM [2094836] to Intervenor brief [2094834-2] filed by Buxmont Coalition for Safe Water, Clean Cape Fear, Clean Haw River, Concerned Citizens of WMEL Water Authority Grassroots, Environmental Justice Task Force, Fight for Zero, Merrimack Citizens for Clean Water, Natural Resources Defense Council and Newburgh Clean Water Project in 24-1188 [Service Date:01/17/2025 ] [24-1188, 24-1191, 24-1192] (O'Brien, Katherine) [Entered: 01/17/2025 02:18 PM]

Jan. 17, 2025

Jan. 17, 2025

1208700241

AMICUS FOR RESPONDENT BRIEF [2094874] filed by State of Connecticut in 24-1188 on behalf of itself and seventeen other State Amici [Service Date: 01/17/2025 ] Length of Brief: 6,425 words. [24-1188, 24-1191, 24-1192] (Kelly, Christopher) [Entered: 01/17/2025 03:22 PM]

Jan. 17, 2025

Jan. 17, 2025

1208700248

SEPARATE STATUTORY ADDENDUM [2094877] to Amicus brief [2094874-2] filed by State of Connecticut in 24-1188 [Service Date:01/17/2025 ] [24-1188, 24-1191, 24-1192] (Kelly, Christopher) [Entered: 01/17/2025 03:24 PM]

Jan. 17, 2025

Jan. 17, 2025

1208700561

AMICUS FOR RESPONDENT BRIEF [2094993] lodged by Scientist Amici in 24-1188, 24-1191, 24-1192 [Service Date: 01/17/2025 ] Length of Brief: 7921. [24-1188, 24-1191, 24-1192][Edited 01/21/2025 by EKC--MODIFIED EVENT FROM FILED TO LODGED] (Benavides, Marissa) [Entered: 01/17/2025 11:59 PM]

Jan. 17, 2025

Jan. 17, 2025

1208700616

ERRATA [2095009] filed by Scientist Amici in 24-1188, 24-1191, 24-1192 to Amicus brief [2094993-2] . Reason for errata: Amici's initial brief submission inadvertently did not include a motion for leave to file an amici curiae brief. Amici also inadvertently submitted an overlong brief. Amici's motion and corrected brief are attached herein. [Service Date: 01/20/2025 ] [24-1188, 24-1191, 24-1192] (Benavides, Marissa) [Entered: 01/20/2025 11:51 AM]

Jan. 20, 2025

Jan. 20, 2025

1208700692

MOTION [2095041] for leave to file brief filed by Scientist Amici in 24-1192 (Service Date: 01/21/2025 by CM/ECF NDA) Length Certification: 811 words. [24-1188, 24-1191, 24-1192]--[Edited 01/21/2025 by EKC] (Benavides, Marissa) [Entered: 01/21/2025 08:15 AM]

Jan. 21, 2025

Jan. 21, 2025

1208700701

AMICUS FOR RESPONDENT BRIEF [2095046] lodged by Linda S. Birnbaum, Ph.D., Jamie DeWitt, Ph.D., Rainer Lohmann, Ph.D. and Jennifer Schlezinger, Ph.D. [Service Date: 01/21/2025 ] Length of Brief: 6,498 words. [24-1188, 24-1191, 24-1192]--[Edited 01/21/2025 by EKC] (Benavides, Marissa) [Entered: 01/21/2025 08:19 AM]

Jan. 21, 2025

Jan. 21, 2025

1208701025

ERRATA [2095238] filed by State of Connecticut in 24-1188 to Amicus brief [2094874-2] . Reason for errata: State Amici's Separate Statutory and Regulatory Addendum inadvertently included unnecessary pages. Corrected addendum is attached herein.. [Service Date: 01/21/2025 ] [24-1188, 24-1191, 24-1192] (Kelly, Christopher) [Entered: 01/21/2025 01:42 PM]

Jan. 21, 2025

Jan. 21, 2025

1208701053

SEPARATE STATUTORY ADDENDUM [2095259] to Amicus brief [2094874-2] filed by State of Connecticut in 24-1188 [Service Date:01/21/2025 ] [24-1188, 24-1191, 24-1192] (Kelly, Christopher) [Entered: 01/21/2025 02:10 PM]

Jan. 21, 2025

Jan. 21, 2025

1208708466

UNOPPOSED MOTION [2099439] to hold case in abeyance filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 Length Certification: 711 Words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 02/07/2025 12:32 PM]

Feb. 7, 2025

Feb. 7, 2025

RECAP
1208708887

CLERK'S ORDER [2099657] filed granting motion of Linda Birnbaum, Ph.D., Jamie DeWitt, Ph.D., Rainer Lohmann, Ph.D., and Jennifer Schlezinger, Ph.D. for leave to file brief amici curiae in support of respondents [2095041-3], The Clerk is directed to file lodged Amicus brief [2095046-3]. [24-1188, 24-1191, 24-1192] [Entered: 02/07/2025 10:23 PM]

Feb. 7, 2025

Feb. 7, 2025

RECAP

PER ABOVE ORDER lodged Amicus brief [2095046-3] is filed [24-1188, 24-1191, 24-1192] [Entered: 02/11/2025 09:40 AM]

Feb. 7, 2025

Feb. 7, 2025

1208708890

CLERK'S ORDER [2099658] filed granting respondents' unopposed motion to hold case in abeyance [2099439-2]. Cases 24-1188, et al. held in abeyance pending further order of the court; directing respondent to file motions to govern future proceedings by 04/08/2025. [24-1188, 24-1191, 24-1192] [Entered: 02/07/2025 10:28 PM]

Feb. 7, 2025

Feb. 7, 2025

RECAP
1208727998

CONSENT MOTION [2109880] to hold case in abeyance filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 (Service Date: 04/08/2025 by CM/ECF NDA) Length Certification: 601 Words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 04/08/2025 02:43 PM]

April 8, 2025

April 8, 2025

RECAP
1208728792

CLERK'S ORDER [2110289] filed granting respondents' unopposed motion to continue to hold case in abeyance [2109880-2].; directing respondents to file motions to govern future proceedings by 05/12/2025. [24-1188, 24-1191, 24-1192] [Entered: 04/10/2025 10:44 AM]

April 10, 2025

April 10, 2025

RECAP
1208730380

MOTION [2111115] to participate as amicus curiae [Disclosure Listing: Attached] filed by Toxicology Excellence for Risk Assessment and International Society for Regulatory Toxicology and Pharmacology. [Service Date: 04/15/2025 ] [24-1188, 24-1191, 24-1192] (Elliott, Edwin) [Entered: 04/15/2025 09:33 AM]

April 15, 2025

April 15, 2025

1208730392

AMICUS FOR PETITIONER BRIEF [2111121] lodged by Toxicology Excellence for Risk Assessment and International Society for Regulatory Toxicology and Pharmacology. [Service Date: 04/15/2025 ] Length of Brief: 6,082 words, 588 Lines. [24-1188, 24-1191, 24-1192] [Edited 04/15/2025 by EKC--MODIFIED EVENT FROM FILED TO LODGED] (Elliott, Edwin) [Entered: 04/15/2025 09:50 AM]

April 15, 2025

April 15, 2025

RECAP
1208731602

AMICUS FOR PETITIONER BRIEF [2111735] lodged by (Paustenbach & Associates). [Service Date: 04/18/2025 ] Length of Brief: 69 pages. [24-1188, 24-1191, 24-1192] [Edited 04/18/2025 by EKC--MODIFIED EVENT FROM FILED TO LODGED] (Redmond, Robert) [Entered: 04/18/2025 12:55 PM]

April 18, 2025

April 18, 2025

RECAP

[WITHDRAWN BY CLERK'S ORDER ON 7/22/25]--AMICUS FOR PETITIONER BRIEF 2111735 lodged by (Paustenbach & Associates). [Service Date: 04/18/2025 ] Length of Brief: 69 pages. [24-1188, 24-1191, 24-1192]--[Edited 07/22/2025 by MCM] (Redmond, Robert) [Entered: 04/18/2025 12:55 PM]

April 18, 2025

April 18, 2025

1208732115

RESPONSE IN OPPOSITION [2111981] to motion to participate as amicus curiae [2111115-2] filed by Buxmont Coalition for Safe Water, Clean Cape Fear, Clean Haw River, Concerned Citizens of WMEL Water Authority Grassroots, Environmental Justice Task Force, Fight for Zero, Merrimack Citizens for Clean Water, Newburgh Clean Water Project and Natural Resources Defense Council in 24-1188 [Service Date: 04/21/2025 by CM/ECF NDA] Length Certification: 2,746 words. [24-1188, 24-1191, 24-1192] (O'Brien, Katherine) [Entered: 04/21/2025 04:58 PM]

April 21, 2025

April 21, 2025

RECAP
1208733718

REPLY [2112883] filed by International Society of Regulatory Toxicology and Pharmacology and Toxicology Excellance for Risk Assessment in 24-1188 to response [2111981-2] [Service Date: 04/25/2025 by CM/ECF NDA] Length Certification: 484 Words. [24-1188, 24-1191, 24-1192] (Elliott, Edwin) [Entered: 04/25/2025 11:56 AM]

April 25, 2025

April 25, 2025

RECAP
1208737047

UNOPPOSED MOTION [2114625] to withdraw brief filed by Paustenbach & Associates in 24-1188 [Service Date: 05/06/2025 ] Length Certification: This document complies with the word limit of Federal Rule of Appellate Procedure 27(d)(2)(A) because, excluding the parts of the document exempted by Federal Rule of Appellate Procedure 32(f), this document contains 28 words.. [24-1188, 24-1191, 24-1192] (Redmond, Robert) [Entered: 05/06/2025 04:47 PM]

May 6, 2025

May 6, 2025

RECAP
1208738695

UNOPPOSED MOTION [2115469] to hold case in abeyance filed by EPA and Lee M. Zeldin [Service Date: 05/12/2025 ] Length Certification: 484 words. [24-1188] (Knudsen, Andrew) [Entered: 05/12/2025 05:16 PM]

May 12, 2025

May 12, 2025

RECAP
1208739422

CLERK'S ORDER [2115832] filed granting respondents' unopposed motion to continue to hold cases in abeyance [2115469-2] in 24-1188.; directing respondents to file motions to govern future proceedings by 06/04/2025. [24-1188, 24-1191, 24-1192] [Entered: 05/14/2025 06:12 PM]

May 14, 2025

May 14, 2025

RECAP
1208745664

UNOPPOSED MOTION [2119087] to hold case in abeyance filed by EPA and Lee M. Zeldin [Service Date: 06/04/2025 ] Length Certification: 835 words. [24-1188] (Knudsen, Andrew) [Entered: 06/04/2025 02:36 PM]

June 4, 2025

June 4, 2025

RECAP
1208746176

CLERK'S ORDER [2119400] filed granting respondents' unopposed motion to continue to hold cases in abeyance [2119087-2]; directing respondents to file motions to govern future proceedings by 07/21/2025 [24-1188, 24-1191, 24-1192] [Entered: 06/05/2025 02:34 PM]

June 5, 2025

June 5, 2025

RECAP
1208750913

ENTRY OF APPEARANCE [2122026] filed by Tobias S. Loss-Eaton and co-counsel Gordon D. Todd on behalf of Petitioners American Chemistry Council and National Association of Manufacturers in 24-1191. [24-1191, 24-1188, 24-1192] (Loss-Eaton, Tobias) [Entered: 06/24/2025 08:57 AM]

June 24, 2025

June 24, 2025

1208756189

NOTICE [2124758] to withdraw attorney Ronald J. Tenpas who represented American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 07/10/2025 ] [24-1188, 24-1191, 24-1192] (Tenpas, Ronald) [Entered: 07/10/2025 03:17 PM]

July 10, 2025

July 10, 2025

1208759548

UNOPPOSED MOTION [2126542] to govern future proceedings filed by EPA and Lee M. Zeldin [Service Date: 07/21/2025 ] Length Certification: 725 words. [24-1188] (Knudsen, Andrew) [Entered: 07/21/2025 05:35 PM]

July 21, 2025

July 21, 2025

RECAP
1208759940

CLERK'S ORDER [2126755] filed granting respondents' motion to govern future proceedings [2126542-2] removing cases from abeyance; directing parties to submit proposed schedule and format for completion of briefing by 08/21/2025; granting the consent motion of amicus curiae Paustenbach & Associates to withdraw its brief in support of petitioners filed April 18, 2025. [2114625-2] [24-1188, 24-1191, 24-1192] [Entered: 07/22/2025 04:13 PM]

July 22, 2025

July 22, 2025

1208761158

NOTICE [2127396] to withdraw attorney Andrew Duncan Knudsen who represented EPA and Lee M. Zeldin in 24-1188, EPA and Lee M. Zeldin in 24-1191 and EPA and Lee M. Zeldin in 24-1192 filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 [Service Date: 07/25/2025 ] [24-1188, 24-1191, 24-1192] (Knudsen, Andrew) [Entered: 07/25/2025 06:17 PM]

July 25, 2025

July 25, 2025

1208763020

JOINT UNOPPOSED MOTION [2128362] to govern future proceedings filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 [Service Date: 08/01/2025 ] Length Certification: 536 words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 08/01/2025 12:39 PM]

Aug. 1, 2025

Aug. 1, 2025

RECAP
1208764478

CLERK'S ORDER [2129115] filed considering the joint motion to govern future proceedings [2128362-2]; directing parties to file motions to govern future proceedings by 09/10/2025. [24-1188, 24-1191, 24-1192] [Entered: 08/07/2025 01:43 PM]

Aug. 7, 2025

Aug. 7, 2025

RECAP
1208774411

JOINT UNOPPOSED MOTION [2134361] to govern future proceedings filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 [Service Date: 09/10/2025 ] Length Certification: 496 words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 09/10/2025 07:56 PM]

Sept. 10, 2025

Sept. 10, 2025

RECAP
1208774759

MOTION [2134523] to vacate filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 (Service Date: 09/11/2025 by CM/ECF NDA) Length Certification: 4,704 Words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 09/11/2025 06:15 PM]

1 Motion Filed

View on RECAP

2 Exhibit

View on RECAP

Sept. 11, 2025

Sept. 11, 2025

1208774900

CLERK'S ORDER [2134580] filed considering motion to govern future proceedings [2134361-2]; directing party to file briefing format - Proposed formats due 09/12/2025 [24-1188, 24-1191, 24-1192] [Entered: 09/12/2025 09:52 AM]

Sept. 12, 2025

Sept. 12, 2025

RECAP
1208775188

JOINT UNOPPOSED MOTION [2134741] concerning briefing format filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 09/12/2025 ] Length Certification: 787. [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 09/12/2025 05:04 PM]

Sept. 12, 2025

Sept. 12, 2025

RECAP
1208775981

CLERK'S ORDER [2135130] filed directing response to motion for partial vacatur [2134523-2]. Responses to motion for partial vacatur due 09/26/2025. Respondents' consolidated reply in support of the motion for partial vacatur due on 10/10/2025. Other parties' responses to motions for affirmative relief related to the motion for partial vacatur due on 10/10/2025. Replies in support of motions for affirmative relief related to the motion for partial vacatur due 10/22/2025 [24-1188, 24-1191, 24-1192] [Entered: 09/16/2025 12:39 PM]

Sept. 16, 2025

Sept. 16, 2025

RECAP
1208779837

UNOPPOSED MOTION [2137231] for reconsideration of order [2135130-2] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 09/26/2025 ] Length Certification: 1,935 words. [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 09/26/2025 10:52 AM]

Sept. 26, 2025

Sept. 26, 2025

RECAP
1208780113

RESPONSE IN SUPPORT [2137385] to motion to vacate [2134523-2] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 09/26/2025 by CM/ECF NDA] Length Certification: 5,059 Words. [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 09/26/2025 04:53 PM]

Sept. 26, 2025

Sept. 26, 2025

RECAP
1208780147

RESPONSE IN SUPPORT [2137406] to motion to vacate [2134523-2] filed by American Chemistry Council and National Association of Manufacturers in 24-1191, The Chemours Company FC, LLC in 24-1192 [Service Date: 09/26/2025 by CM/ECF NDA] Length Certification: 2,786 Words. [24-1188, 24-1191, 24-1192] (Loss-Eaton, Tobias) [Entered: 09/26/2025 06:32 PM]

Sept. 26, 2025

Sept. 26, 2025

RECAP
1208780165

RESPONSE IN OPPOSITION [2137412] to motion to vacate [2134523-2] combined with a MOTION for leave to file brief filed by Buxmont Coalition for Safe Water, Clean Cape Fear, Clean Haw River, Concerned Citizens of WMEL Water Authority Grassroots, Environmental Justice Task Force, Fight for Zero, Merrimack Citizens for Clean Water, Natural Resources Defense Council and Newburgh Clean Water Project in 24-1188 [Service Date: 09/26/2025 by CM/ECF NDA] Length Certification: 7,793 words. [24-1188, 24-1191, 24-1192] (O'Brien, Katherine) [Entered: 09/26/2025 09:19 PM]

Sept. 26, 2025

Sept. 26, 2025

RECAP
1208781574

UNOPPOSED MOTION [2138110] to hold case in abeyance filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 [Service Date: 10/01/2025 ] Length Certification: 422 Words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 10/01/2025 12:41 PM]

Oct. 1, 2025

Oct. 1, 2025

RECAP
1208782627

CLERK'S ORDER [2138691] filed granting respondents' unopposed motion for a stay of proceedings in light of lapse of appropriations [2138110-2]. Holding cases in held in abeyance pending further order of the court. The parties are directed to file motions to govern further proceedings in this case within 10 days of the date that appropriations are restored and the Department of Justice attorneys are permitted to resume their usual civil litigation functions. [24-1188, 24-1191, 24-1192] [Entered: 10/03/2025 02:44 PM]

Oct. 3, 2025

Oct. 3, 2025

RECAP
1208798838

JOINT UNOPPOSED MOTION [2147042] to govern future proceedings filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 [Service Date: 11/24/2025 ] Length Certification: 164 words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 11/24/2025 07:40 PM]

Nov. 24, 2025

Nov. 24, 2025

RECAP
1208800205

CLERK'S ORDER [2147732] filed removing case from abeyance; granting motion to govern future proceedings [2147042-2]; EPA's reply in support of motion for partial vacatur and response to motion for leave to file [2137412-2] and petitioners' response to motion for leave to file are now due 12/03/2025; respondent-intervenors' reply to response is due 12/17/2025; dismissing in part as moot motion concerning briefing format [2134741-2]; dismissing as moot motion for reconsideration [2137231-2] [24-1188, 24-1191, 24-1192] [Entered: 12/01/2025 11:07 AM]

Dec. 1, 2025

Dec. 1, 2025

RECAP
1208801661

REPLY [2148446] filed by EPA and Lee M. Zeldin in 24-1188, 24-1191, 24-1192 to response and RESPONSE IN OPPOSITION filed to Cross Motion [2137412-2] [Service Date: 12/03/2025 by CM/ECF NDA] Length Certification: 5,198 Words. [24-1188, 24-1191, 24-1192] (Kimball, Kimere) [Entered: 12/03/2025 03:30 PM]

Dec. 3, 2025

Dec. 3, 2025

RECAP
1208801816

RESPONSE IN OPPOSITION [2148506] to motion [2137412-2] filed by American Water Works Association and Association of Metropolitan Water Agencies in 24-1188 [Service Date: 12/03/2025 by CM/ECF NDA] Length Certification: 3,959 words. [24-1188, 24-1191, 24-1192] (Snow, Corinne) [Entered: 12/03/2025 05:46 PM]

Dec. 3, 2025

Dec. 3, 2025

RECAP
1208801834

RESPONSE IN OPPOSITION [2148510] to motion for leave to file [2137412-2] filed by American Chemistry Council and National Association of Manufacturers in 24-1191 [Service Date: 12/03/2025 by CM/ECF NDA] Length Certification: 673 words. [24-1191, 24-1188, 24-1192] (Loss-Eaton, Tobias) [Entered: 12/03/2025 08:03 PM]

Dec. 3, 2025

Dec. 3, 2025

1208806167

REPLY [2150809] filed by Buxmont Coalition for Safe Water, Clean Cape Fear, Clean Haw River, Concerned Citizens of WMEL Water Authority Grassroots, Environmental Justice Task Force, Fight for Zero, Merrimack Citizens for Clean Water, Natural Resources Defense Council and Newburgh Clean Water Project in 24-1188 to response [2148510-2], [2148506-2], [2148446-2], [2148446-3] [Service Date: 12/17/2025 by CM/ECF NDA] Length Certification: 2,594 words. [24-1188, 24-1191, 24-1192] (O'Brien, Katherine) [Entered: 12/17/2025 10:47 AM]

Dec. 17, 2025

Dec. 17, 2025

RECAP
1208814836

Per Curiam Order Filed (Special Panel)

Jan. 21, 2026

Jan. 21, 2026

RECAP

Case Details

State / Territory:

- United States (national) -

Case Type(s):

Environmental Justice

Special Collection(s):

Trump Administration 2.0: Reversing Course on Existing Litigation

Key Dates

Filing Date: June 7, 2024

Case Ongoing: Yes

Plaintiffs

Plaintiff Description:

The petitioners are a group of industry actors.

Plaintiff Type(s):

Private Plaintiff

Public Interest Lawyer: No

Filed Pro Se: No

Class Action Sought: No

Class Action Outcome: Not sought

Defendants

Environmental Protection Agency, Federal

Case Details

Causes of Action:

Clean Water Act (CWA), 33 U.S.C. § 1319 et seq.

Other Dockets:

U.S. Court of Appeals for the District of Columbia Circuit 24-01188

Available Documents:

Complaint (any)

Trial Court Docket

Outcome

Prevailing Party: None Yet / None

Relief Sought:

Injunction

Relief Granted:

None yet

Source of Relief:

None yet

Issues

General/Misc.:

Other