Case: Salt Lake City Corporation v. Mullin

2:26-cv-00528 | U.S. District Court for the District of Utah

Filed Date: June 8, 2026

Case Ongoing

Clearinghouse coding complete

Case Summary

This is a case challenging the U.S. Department of Homeland Security’s (DHS) decision to convert a warehouse in Salt Lake County, Utah, into an immigration detention facility called the Salt Lake Mega Center.  On June 8, 2026, Salt Lake City Corporation and Salt Lake County filed this lawsuit in the U.S. District Court for the District of Utah. The plaintiffs sued DHS and its Secretary, along with U.S. Immigration and Customs Enforcement (ICE) and its Senior Official, each in their official capa…

This is a case challenging the U.S. Department of Homeland Security’s (DHS) decision to convert a warehouse in Salt Lake County, Utah, into an immigration detention facility called the Salt Lake Mega Center. 

On June 8, 2026, Salt Lake City Corporation and Salt Lake County filed this lawsuit in the U.S. District Court for the District of Utah. The plaintiffs sued DHS and its Secretary, along with U.S. Immigration and Customs Enforcement (ICE) and its Senior Official, each in their official capacities, asserting violations of the Administrative Procedure Act (APA), National Environmental Policy Act (NEPA), and the Intergovernmental Cooperation Act (ICA). The plaintiffs alleged that the government failed to conduct environmental reviews required by the NEPA or consult with local governments before purchasing the warehouse, as required by the APA. They further claimed the facility would strain water and sewage infrastructure, exacerbate air pollution, and pose public health risks, including measles outbreaks, while diverting law enforcement resources. The plaintiffs sought declaratory relief, vacatur of the government’s decision to establish the Salt Lake Mega Center, injunctive relief barring the government from further implementing that decision, and attorney’s fees. The case was assigned to District Judge Jill N. Parrish.

This case is ongoing. 

Summary Authors

Alexis Gil (7/18/2026)

People

For PACER's information on parties and their attorneys, see: https://www.courtlistener.com/docket/73456083/parties/salt-lake-city-corporation-v-mullin/


Documents in the Clearinghouse

Documents in this case
1

2:26-cv-00528

Complaint for Declaratory and Injunctive Relief

June 8, 2026

June 8, 2026

Complaint

Docket

See docket on RECAP: https://www.courtlistener.com/docket/73456083/salt-lake-city-corporation-v-mullin/

Last updated July 28, 2026, 3:39 p.m.

ECF Number Date Description Link
1 June 8, 2026

COMPLAINT against All Defendants (Filing fee $ 405, receipt number AUTDC-5814247) filed by Salt Lake City Corporation. (Attachments: # 1 Civil Cover Sheet) (Lillquist, Jensen) (Entered: 06/08/2026)

Clearinghouse
2 June 9, 2026

NOTICE OF REQUIREMENTS for appearance Pro Hac Vice emailed to attorney Michael Drysdale for Salt Lake City Corporation. (kop) (Entered: 06/09/2026)

RECAP
3 June 9, 2026

NOTICE OF MAGISTRATE JUDGE AVAILABILITY TO PRESIDE OVER CASE- Under 28 U.S.C. 636(c), Fed. R. Civ. P. 73, and DUCivR 72-3, you are hereby notified that a magistrate judge for the District of Utah may conduct any or all proceedings in this case, including a jury or bench trial and entry of a final judgment. Exercise of this jurisdiction by the magistrate judge is permitted only if all parties voluntarily sign and return the form. To consent, return the Consent Form to the clerk's office within 21 days via email at consents@utd.uscourts.gov or mail at the address on the form. Please do not efile the Consent Form in the case. Notice emailed to Plaintiffs Salt Lake City Corporation, Salt Lake County. (Notice generated by clerks office) Form due by 6/30/2026. (kop) (Entered: 06/09/2026)

RECAP
4 June 9, 2026

Summons Issued Electronically as to David Venturella. Instructions to Counsel:1. Click on the document number.2. If you are prompted for an ECF login, enter your 'Attorney' login to CM/ECF.3. Print the issued summons for service. (kop) (Entered: 06/09/2026)

RECAP
5 June 9, 2026

Summons Issued Electronically as to United States Immigration and Customs Enforcement. Instructions to Counsel:1. Click on the document number.2. If you are prompted for an ECF login, enter your 'Attorney' login to CM/ECF.3. Print the issued summons for service. (kop) (Entered: 06/09/2026)

RECAP
6 June 9, 2026

Summons Issued Electronically as to Markwayne Mullin. Instructions to Counsel:1. Click on the document number.2. If you are prompted for an ECF login, enter your 'Attorney' login to CM/ECF.3. Print the issued summons for service. (kop) (Entered: 06/09/2026)

RECAP
7 June 9, 2026

Summons Issued Electronically as to United States Department of Homeland Security. Instructions to Counsel:1. Click on the document number.2. If you are prompted for an ECF login, enter your 'Attorney' login to CM/ECF.3. Print the issued summons for service. (kop) (Entered: 06/09/2026)

RECAP
8 June 9, 2026

Summons Issued Electronically as to United States Attorney's Office for the District of Utah. Instructions to Counsel:1. Click on the document number.2. If you are prompted for an ECF login, enter your 'Attorney' login to CM/ECF.3. Print the issued summons for service. (kop) (Entered: 06/09/2026)

RECAP
9 June 9, 2026

Summons Issued Electronically as to United States Attorney General. Instructions to Counsel:1. Click on the document number.2. If you are prompted for an ECF login, enter your 'Attorney' login to CM/ECF.3. Print the issued summons for service. (kop) (Entered: 06/09/2026)

RECAP
10 June 9, 2026

EXHIBITS filed by Salt Lake City Corporation re 1 Complaint,. (Attachments: # 1 Exhibit A (DRI), # 2 Exhibit B (April 22 Lyons Letter))(Berndt, Amanda) (Entered: 06/09/2026)

RECAP
June 9, 2026

Judge Jill N. Parrish added. Case number will now read 2:26-cv-00528-JNP. Please make changes to document captions accordingly. (kop)

11 June 11, 2026

MOTION for Admission Pro Hac Vice of Michael Drysdale, Registration fee $ 50, receipt number AUTDC-5818985,Attorneys awaiting Pro Hac Vice admission should immediately register to efile and receive electronic notification of case activity in the District of Utah at https://www.pacer.uscourts.gov/cmecf/dcbk.html.Registration requests will not be approved until the court has granted the pro hac vice motion. Instructions are available on the court's website at https://www.utd.uscourts.gov/cmecf-electronic-case-filing. filed by Plaintiff Salt Lake City Corporation. (Attachments: # 1 Exhibit Pro Hac Application - Michael Drysdale, # 2 Text of Proposed Order [Proposed] Order Granting Motion for Pro Hac Vice Admission)(Houdeshel, Megan) (Entered: 06/11/2026)

RECAP
12 June 16, 2026

ORDER REFERRING CASE to Magistrate Judge Dustin B. Pead under 28:636 (b)(1)(A), Magistrate Judge to hear and determine all nondispositive pretrial matters. No attached document. Signed by Judge Jill N. Parrish on 6/16/2026. (lwh) (Entered: 06/16/2026)

RECAP
13 June 16, 2026

CIVIL STANDING ORDER Signed by Judge Jill N. Parrish on 6/16/2026. (lwh) (Entered: 06/16/2026)

RECAP
14 June 16, 2026

ORDER granting 11 Motion for Admission Pro Hac Vice of Attorney Michael Drysdale for Salt Lake City Corporation.Attorneys admitted Pro Hac Vice must register to efile and receive electronic notification of case activity in the District of Utah at https://www.pacer.uscourts.gov/cmecf/dcbk.html. Instructions are available at https://www.utd.uscourts.gov/attorney-admissions#PHV.A Pro Hac Vice Attorney who fails to register for CM/ECF access will not receive notifications of electronic filings.Attorneys admitted Pro Hac Vice may download a copy of the District of Utahs local rules from the courts web site at https://www.utd.uscourts.gov/rules-practice. Signed by Judge Jill N. Parrish on 6/16/2026. (dle) (Entered: 06/16/2026)

RECAP
June 16, 2026

Order Referring Case to Magistrate Judge

15 June 18, 2026

RETURN OF SERVICE. Executed on all Defendants as Stated in Affidavit. Filed by Plaintiff Salt Lake City Corporation. (Attachments: # 1 Exhibit A (Proof of Service on USAO), # 2 Exhibit B (Proof of Service on Attorney General, ICE, DHS, Venturella, and Mullin))(Berndt, Amanda) (Entered: 06/18/2026)

RECAP
16 June 23, 2026

NOTICE OF ACKNOWLEDGMENT of Civil Standing Order 13 filed by Plaintiff Salt Lake County (Garbina, William) (Entered: 06/23/2026)

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17 June 23, 2026

NOTICE OF ACKNOWLEDGMENT of Civil Standing Order 13 filed by Plaintiff Salt Lake County (Love, Perrin) (Entered: 06/23/2026)

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18 June 23, 2026

NOTICE OF ACKNOWLEDGMENT of Civil Standing Order 13 filed by Plaintiff Salt Lake County (Fleming, Sharadee) (Entered: 06/23/2026)

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19 June 23, 2026

NOTICE OF ACKNOWLEDGMENT of Civil Standing Order 13 filed by Plaintiff Salt Lake City Corporation (Berndt, Amanda) (Entered: 06/23/2026)

RECAP
20 June 23, 2026

NOTICE OF ACKNOWLEDGMENT of Civil Standing Order 13 filed by Plaintiff Salt Lake City Corporation (Kittrell, Mark) (Entered: 06/23/2026)

RECAP
21 June 23, 2026

NOTICE OF ACKNOWLEDGMENT of Civil Standing Order 13 filed by Plaintiff Salt Lake City Corporation (Lillquist, Jensen) (Entered: 06/23/2026)

RECAP
22 June 23, 2026

NOTICE OF ACKNOWLEDGMENT of Civil Standing Order 13 filed by Plaintiff Salt Lake City Corporation (Houdeshel, Megan) (Entered: 06/23/2026)

RECAP
23 June 23, 2026

NOTICE OF ACKNOWLEDGMENT of Civil Standing Order 13 filed by Plaintiff Salt Lake City Corporation (Lillquist, Jensen) (Entered: 06/23/2026)

RECAP

Case Details

State / Territory:

Utah

Case Type(s):

Immigration and/or the Border

Environmental Justice

Special Collection(s):

Trump Administration 2.0: Challenges to the Government

Key Dates

Filing Date: June 8, 2026

Case Ongoing: Yes

Plaintiffs

Plaintiff Description:

The plaintiffs are the Salt Lake City Corporation and Salt Lake County.

Plaintiff Type(s):

State Plaintiff

Public Interest Lawyer: No

Filed Pro Se: No

Class Action Sought: No

Class Action Outcome: Not sought

Defendants

Federal

Secretary of Homeland Security

Senior Official of the U.S. Immigration and Customs Enforcement

U.S. Department of Homeland Security

U.S. Immigration and Customs Enforcement

Facility Type(s):

Government-run

Case Details

Causes of Action:

Administrative Procedure Act, 5 U.S.C. §§ 551 et seq.

Other Dockets:

District of Utah 2:26-cv-00528

Available Documents:

Complaint (any)

Trial Court Docket

Outcome

Prevailing Party: None Yet / None

Relief Sought:

Attorneys fees

Declaratory judgment

Injunction

Relief Granted:

None yet

Source of Relief:

None yet

Issues

General/Misc.:

Other

Recommended Citation